FCC ID: I88NBG6515 AC750 Dual band Wireless Gigabit Router

NBG6515 AC750 Dual-Band Wireless Gigabit Router Version 1.00 Edition 1, 05/2015 Quick Start Guide Users Guide Default Details LAN IP Address

- Router Mode

(Default mode)

- AP/Repeater Mode User Name Password 2.4G SSID www.zyxel.com 5G SSID http://192.168.1.1 http://192.168.1.2 admin 1234 ZyXEL + Last 6 digits of the 2.4G MAC address (ZyXEL734916) ZyXEL+ Last 6 digits of the 5G MAC address + .speed

(ZyXEL734917.speed) Pre-shared Key Serial number + Random key Copyright 2015 ZyXEL Communications Corporation IMPORTANT!

READ CAREFULLY BEFORE USE. KEEP THIS GUIDE FOR FUTURE REFERENCE. Screenshots and graphics in this book may differ slightly from your product due to differences in your product firmware or your computer operating system. Every effort has been made to ensure that the information in this manual is accurate. Related Documentation Quick Start Guide The Quick Start Guide shows how to connect the NBG and access the Web Configurator. Note: It is recommended you use the Web Configurator to configure the NBG. NBG6515 Users Guide 2 Contents Overview Contents Overview Users Guide ....................................................................................................................................... 11 Getting to Know Your NBG .....................................................................................................................12 Connection Wizard ..................................................................................................................................17 Introducing the Web Configurator ...........................................................................................................26 Monitor ....................................................................................................................................................31 NBG Modes .............................................................................................................................................36 Easy Mode ..............................................................................................................................................38 Router Mode ...........................................................................................................................................50 Access Point Mode .................................................................................................................................57 Universal Repeater Mode .......................................................................................................................63 Tutorials ..................................................................................................................................................72 Technical Reference ..........................................................................................................................79 Wireless LAN ..........................................................................................................................................80 IPv6 .........................................................................................................................................................96 WAN ......................................................................................................................................................101 LAN ....................................................................................................................................................... 111 DHCP Server ........................................................................................................................................ 114 Network Address Translation (NAT) ...................................................................................................... 117 Dynamic DNS ........................................................................................................................................123 Static Route ...........................................................................................................................................125 Firewall ..................................................................................................................................................127 Content Filter .........................................................................................................................................134 Bandwidth Management .......................................................................................................................136 Remote Management ............................................................................................................................142 Universal Plug-and-Play (UPnP) ...........................................................................................................144 USB Media Sharing ...............................................................................................................................151 Maintenance ..........................................................................................................................................160 Troubleshooting ....................................................................................................................................167 NBG6515 Users Guide 3 Table of Contents Table of Contents Contents Overview ..............................................................................................................................3 Table of Contents .................................................................................................................................4 Part I: Users Guide ......................................................................................... 11 Chapter 1 Getting to Know Your NBG ................................................................................................................12 1.1 Overview ...........................................................................................................................................12 1.2 Applications .......................................................................................................................................12 1.3 Ways to Manage the NBG ................................................................................................................12 1.4 Good Habits for Managing the NBG .................................................................................................13 1.5 LEDs .................................................................................................................................................14 1.6 The WPS Button ...............................................................................................................................15 1.7 Wall Mounting ...................................................................................................................................15 Chapter 2 Connection Wizard .............................................................................................................................17 2.1 Overview ...........................................................................................................................................17 2.2 Accessing the Wizard ........................................................................................................................17 2.3 Connect to Internet ............................................................................................................................17 2.3.1 Connection Type: DHCP .........................................................................................................18 2.3.2 Connection Type: Static IP ......................................................................................................19 2.3.3 Connection Type: PPPoE ........................................................................................................20 2.3.4 Connection Type: PPTP ..........................................................................................................21 2.4 Router Password ...............................................................................................................................22 2.5 Wireless Security ..............................................................................................................................23 2.5.1 Wireless Security: No Security ................................................................................................23 2.5.2 Wireless Security: WPA-PSK/WPA2-PSK ...............................................................................24 Chapter 3 Introducing the Web Configurator ....................................................................................................26 3.1 Overview ...........................................................................................................................................26 3.2 Accessing the Web Configurator .......................................................................................................26 3.2.1 Login Screen ...........................................................................................................................26 3.2.2 Password Screen ....................................................................................................................27 3.2.3 Home Screen ...........................................................................................................................28 3.3 Resetting the NBG ............................................................................................................................30 NBG6515 Users Guide 4 Table of Contents 3.3.1 Procedure to Use the Reset Button .........................................................................................30 Chapter 4 Monitor.................................................................................................................................................31 4.1 Overview ...........................................................................................................................................31 4.2 What You Can Do .............................................................................................................................31 4.3 The Log Screen .................................................................................................................................31 4.3.1 View Log ..................................................................................................................................31 4.4 DHCP Table ...................................................................................................................................32 4.5 Packet Statistics ...............................................................................................................................33 4.6 WLAN 2.4G Station Status ............................................................................................................34 4.7 WLAN 5G Station Status ...............................................................................................................35 Chapter 5 NBG Modes .........................................................................................................................................36 5.1 Overview ...........................................................................................................................................36 5.1.1 Web Configurator Modes .........................................................................................................36 5.1.2 Device Modes ..........................................................................................................................36 Chapter 6 Easy Mode ...........................................................................................................................................38 6.1 Overview ...........................................................................................................................................38 6.2 What You Can Do .............................................................................................................................40 6.3 What You Need to Know ...................................................................................................................40 6.4 Navigation Panel ...............................................................................................................................40 6.5 Network Map .....................................................................................................................................40 6.6 Control Panel ....................................................................................................................................41 6.6.1 Game Engine ...........................................................................................................................42 6.6.2 Power Saving ..........................................................................................................................43 6.6.3 Content Filter ...........................................................................................................................44 6.6.4 Bandwidth Management ..........................................................................................................45 6.6.5 Firewall ....................................................................................................................................45 6.6.6 Wireless Security .....................................................................................................................46 6.6.7 WPS ........................................................................................................................................47 6.7 Status Screen in Easy Mode .............................................................................................................48 Chapter 7 Router Mode........................................................................................................................................50 7.1 Overview ...........................................................................................................................................50 7.2 What You Can Do .............................................................................................................................50 7.3 Status Screen ....................................................................................................................................50 7.3.1 Navigation Panel .....................................................................................................................53 NBG6515 Users Guide 5 Table of Contents Chapter 8 Access Point Mode.............................................................................................................................57 8.1 Overview ...........................................................................................................................................57 8.2 What You Can Do .............................................................................................................................57 8.3 What You Need to Know ...................................................................................................................57 8.3.1 Setting your NBG to AP Mode .................................................................................................58 8.3.2 Accessing the Web Configurator in Access Point Mode ..........................................................58 8.3.3 Configuring your WLAN, Bandwidth Management and Maintenance Settings ........................58 8.4 AP Mode Status Screen ....................................................................................................................58 8.5 LAN Screen .......................................................................................................................................61 Chapter 9 Universal Repeater Mode...................................................................................................................63 9.1 Overview ...........................................................................................................................................63 9.2 What You Can Do .............................................................................................................................63 9.3 What You Need to Know ...................................................................................................................63 9.4 Setting your NBG to Universal Repeater Mode ................................................................................64 9.5 Universal Repeater Mode Status Screen ..........................................................................................64 9.5.1 Navigation Panel .....................................................................................................................67 9.6 AP Select Screen ..............................................................................................................................67 9.6.1 Wireless LAN 2.4G ..................................................................................................................67 9.6.2 Wireless LAN 5G .....................................................................................................................69 Chapter 10 Tutorials...............................................................................................................................................72 10.1 Overview .........................................................................................................................................72 10.2 Connecting to the Internet from an Access Point ............................................................................72 10.3 Configuring Wireless Security Using WPS ......................................................................................72 10.3.1 Push Button Configuration (PBC) ..........................................................................................73 10.3.2 PIN Configuration ..................................................................................................................74 10.4 Enabling and Configuring Wireless Security (No WPS) ..................................................................75 10.4.1 Configure Your Notebook ......................................................................................................77 Part II: Technical Reference............................................................................ 79 Chapter 11 Wireless LAN.......................................................................................................................................80 11.1 Overview .........................................................................................................................................80 11.2 What You Can Do ............................................................................................................................80 11.3 What You Should Know ...................................................................................................................81 11.3.1 Wireless Security Overview ...................................................................................................81 NBG6515 Users Guide 6 Table of Contents 11.4 General Wireless LAN 2.4G/5G General Screen ...........................................................................83 11.5 General Wireless LAN 2.4G/5G Security Screen ...........................................................................85 11.5.1 No Security ............................................................................................................................85 11.5.2 WEP Encryption .....................................................................................................................86 11.5.3 WPA-PSK/WPA2-PSK ...........................................................................................................88 11.6 MAC Filter .......................................................................................................................................89 11.7 Wireless LAN Advanced Screen .....................................................................................................90 11.8 Quality of Service (QoS) Screen .....................................................................................................91 11.9 WPS Screen ....................................................................................................................................91 11.10 WPS Device Screen ......................................................................................................................92 11.11 Scheduling Screen ........................................................................................................................93 11.12 Guest WLAN Screen .....................................................................................................................94 Chapter 12 IPv6 ......................................................................................................................................................96 12.1 IPv6 Overview .................................................................................................................................96 12.1.1 What You Can Do in this Chapter ..........................................................................................96 12.1.2 What You Need to Know ........................................................................................................96 12.2 General Screen ...............................................................................................................................98 Chapter 13 WAN ...................................................................................................................................................101 13.1 Overview .......................................................................................................................................101 13.2 What You Can Do .........................................................................................................................101 13.3 What You Need To Know ..............................................................................................................101 13.3.1 Configuring Your Internet Connection ..................................................................................102 13.3.2 Multicast ..............................................................................................................................103 13.4 Internet Connection .......................................................................................................................103 13.4.1 Ethernet Encapsulation .......................................................................................................103 13.4.2 PPPoE Encapsulation .........................................................................................................105 13.4.3 PPTP Encapsulation ............................................................................................................107 13.5 Advanced WAN Screen ................................................................................................................109 Chapter 14 LAN .................................................................................................................................................... 111 14.1 Overview ....................................................................................................................................... 111 14.2 What You Can Do ......................................................................................................................... 111 14.3 What You Need To Know .............................................................................................................. 111 14.3.1 IP Pool Setup ....................................................................................................................... 112 14.3.2 LAN TCP/IP ......................................................................................................................... 112 14.3.3 IP Alias ................................................................................................................................ 112 14.4 LAN IP Screen .............................................................................................................................. 112 NBG6515 Users Guide 7 Table of Contents Chapter 15 DHCP Server ..................................................................................................................................... 114 15.1 Overview ....................................................................................................................................... 114 15.2 What You Can Do ......................................................................................................................... 114 15.3 General Screen ............................................................................................................................. 114 15.4 Advanced Screen ....................................................................................................................... 115 Chapter 16 Network Address Translation (NAT)................................................................................................ 117 16.1 Overview .................................................................................................................................... 117 16.2 What You Can Do ......................................................................................................................... 117 16.3 General NAT Screen ..................................................................................................................... 118 16.4 NAT Application Screen .............................................................................................................. 118 16.5 NAT Advanced Screen ..................................................................................................................120 16.5.1 Trigger Port Forwarding Example ........................................................................................121 16.5.2 Two Points To Remember About Trigger Ports ...................................................................122 Chapter 17 Dynamic DNS ....................................................................................................................................123 17.1 Overview ......................................................................................................................................123 17.2 What You Can Do .........................................................................................................................123 17.3 What You Need To Know ..............................................................................................................123 17.4 Dynamic DNS Screen .................................................................................................................123 Chapter 18 Static Route.......................................................................................................................................125 18.1 Overview ....................................................................................................................................125 18.2 What You Can Do .........................................................................................................................125 18.3 IP Static Route Screen .................................................................................................................125 Chapter 19 Firewall ..............................................................................................................................................127 19.1 Overview .....................................................................................................................................127 19.2 What You Can Do .........................................................................................................................127 19.3 What You Need To Know ..............................................................................................................128 19.4 General Firewall Screen .............................................................................................................128 19.5 MAC Filtering Rule Screen ...........................................................................................................129 19.6 IP Filtering Rule Screen ...............................................................................................................130 Chapter 20 Content Filter ....................................................................................................................................134 20.1 Overview .......................................................................................................................................134 20.2 What You Can Do .........................................................................................................................134 NBG6515 Users Guide 8 Table of Contents 20.3 What You Need To Know ..............................................................................................................134 20.3.1 Content Filtering Profiles .....................................................................................................134 20.4 Content Filter Screen ....................................................................................................................135 Chapter 21 Bandwidth Management...................................................................................................................136 21.1 Overview ......................................................................................................................................136 21.2 What You Can Do .........................................................................................................................136 21.3 What You Need To Know ..............................................................................................................137 21.4 General Screen ............................................................................................................................137 21.5 Advanced Screen .........................................................................................................................137 21.5.1 Rule Configuration: Application Rule Configuration .........................................................139 21.5.2 Rule Configuration: User Defined Service Rule Configuration .........................................140 Chapter 22 Remote Management........................................................................................................................142 22.1 Overview .......................................................................................................................................142 22.2 What You Can Do .........................................................................................................................142 22.3 What You Need to Know ...............................................................................................................142 22.3.1 Remote Management and NAT ...........................................................................................142 22.3.2 System Timeout ..................................................................................................................143 22.4 WWW Screen .............................................................................................................................143 Chapter 23 Universal Plug-and-Play (UPnP)......................................................................................................144 23.1 Overview ......................................................................................................................................144 23.2 What You Can Do .........................................................................................................................144 23.3 What You Need to Know ...............................................................................................................144 23.3.1 NAT Traversal ......................................................................................................................144 23.3.2 Cautions with UPnP .............................................................................................................145 23.4 UPnP Screen ...............................................................................................................................145 23.5 Technical Refereance ....................................................................................................................145 23.5.1 Using UPnP in Windows XP Example .................................................................................146 23.5.2 Web Configurator Easy Access ...........................................................................................148 Chapter 24 USB Media Sharing...........................................................................................................................151 24.1 Overview .......................................................................................................................................151 24.2 What You Can Do .........................................................................................................................152 24.3 What You Need To Know ..............................................................................................................152 24.4 Before You Begin ..........................................................................................................................153 24.5 SMB/CIFS Screen .........................................................................................................................154 24.6 DLNA Screen ................................................................................................................................155 NBG6515 Users Guide 9 Table of Contents 24.7 FTP Screen ...................................................................................................................................155 24.8 Example of Accessing Your Shared Files From a Computer ........................................................156 24.8.1 Use Windows Explorer to Share Files .................................................................................157 24.8.2 Use FTP to Share Files .......................................................................................................158 Chapter 25 Maintenance ......................................................................................................................................160 25.1 Overview .......................................................................................................................................160 25.2 What You Can Do .........................................................................................................................160 25.3 General Screen .............................................................................................................................160 25.4 Password Screen ..........................................................................................................................161 25.5 Time Setting Screen ......................................................................................................................162 25.6 Firmware Upgrade Screen ............................................................................................................163 25.7 Configuration Backup/Restore Screen ..........................................................................................164 25.8 Restart Screen ..............................................................................................................................166 Chapter 26 Troubleshooting................................................................................................................................167 26.1 Power, Hardware Connections, and LEDs ....................................................................................167 26.2 NBG Access and Login .................................................................................................................168 26.3 Internet Access .............................................................................................................................169 26.4 Resetting the NBG to Its Factory Defaults ....................................................................................171 26.5 Wireless Router/AP Troubleshooting ............................................................................................171 26.6 USB Device Problems ...................................................................................................................172 Appendix A IP Addresses and Subnetting.......................................................................................174 Appendix B Legal Information..........................................................................................................184 Appendix C Setting Up Your Computers IP Address ......................................................................191 Appendix D Wireless LANs..............................................................................................................219 Appendix E Common Services ........................................................................................................232 Index ..................................................................................................................................................235 NBG6515 Users Guide 10 PART I Users Guide 11 CHAPTER 1 Getting to Know Your NBG 1.1 Overview This chapter introduces the main features and applications of the NBG. The NBG upgrades the speed of your existing wireless network, providing faster network access to mobile users. Making use of IEEE 802.11AC technology, it not only upgrades your network to the next level but also eliminates dead spots, while offering backward compatibility with other IEEE 802.11b/g/n compatible devices. A range of services such as a firewall and content filtering are also available for secure Internet computing. You can use media bandwidth management to efficiently manage traffic on your network. Bandwidth management features allow you to prioritize time-sensitive or highly important applications such as Voice over the Internet (VoIP). 1.2 Applications Your can create the following networks using the NBG:

Wired. You can connect network devices via the Ethernet ports of the NBG so that they can communicate with each other and access the Internet. Wireless. Wireless clients can connect to the NBG to access network resources. WAN. Connect to a broadband modem/router for Internet access. 1.3 Ways to Manage the NBG Use any of the following methods to manage the NBG. Web Configurator. This is recommended for everyday management of the NBG using a

(supported) web browser. Wireless switch. You can use the built-in switch of the NBG to turn the wireless function on and off without opening the Web Configurator. WPS (Wi-Fi Protected Setup) button. You can use the WPS button or the WPS section of the Web Configurator to set up a wireless network with your NBG. NBG6515 Users Guide 12 Chapter 1 Getting to Know Your NBG 1.4 Good Habits for Managing the NBG Do the following things regularly to make the NBG more secure and to manage the NBG more effectively. Change the password. Use a password thats not easy to guess and that consists of different types of characters, such as numbers and letters. Write down the password and put it in a safe place. Back up the configuration (and make sure you know how to restore it). Restoring an earlier working configuration may be useful if the device becomes unstable or even crashes. If you forget your password, you will have to reset the NBG to its factory default settings. If you backed up an earlier configuration file, you would not have to totally re-configure the NBG. You could simply restore your last configuration. NBG6515 Users Guide 13 Chapter 1 Getting to Know Your NBG 1.5 LEDs Figure 1 Front Panel WAN WLAN 5GHz LAN 1-4 Power WLAN 2.4GHz USB WPS The following table describes the LEDs and the WPS button. Table 1 Front Panel LEDs and WPS Button LED POWER COLOR Green STATUS On Off DESCRIPTION The NBG is receiving power and functioning properly. The NBG is not receiving power. WAN Green LAN 1-4 Green WLAN 2.4 GHz Green On Blinking Off On Blinking Off On Blinking Off The NBG has a successful 10/100/1000MB WAN connection. The NBG is sending/receiving data through the WAN. The WAN connection is not ready, or has failed. The NBG has a successful 10/100/1000MB Ethernet connection. The NBG is sending/receiving data through the LAN. The LAN is not connected. The NBG is ready, but is not sending/receiving data through the wireless LAN 2.4 GHz band. The NBG is sending/receiving data through the wireless LAN 2.4 GHz band. The wireless LAN 2.4 GHz band is not ready or has failed. NBG6515 Users Guide 14 Chapter 1 Getting to Know Your NBG Blinking COLOR Green STATUS On Table 1 Front Panel LEDs and WPS Button (continued) LED DESCRIPTION The NBG is ready, but is not sending/receiving data through the WLAN 5 GHz wireless LAN 5 GHz band. The NBG is sending/receiving data through the wireless LAN 5 GHz band. The wireless LAN 5 GHz band is not ready or has failed. The NBG has a USB device installed. The NBG is transmitting and/or receiving data from routers through an installed USB device. There is no USB device connected to the NBG. WPS is enabled. The NBG is negotiating a WPS connection with a wireless client. The wireless LAN is not ready or has failed. Off On Blinking Off Off On Blinking Green Green WPS USB 1.6 The WPS Button Your NBG supports WiFi Protected Setup (WPS), which is an easy way to set up a secure wireless network. WPS is an industry standard specification, defined by the WiFi Alliance. WPS allows you to quickly set up a wireless network with strong security, without having to configure security settings manually. Each WPS connection works between two devices. Both devices must support WPS (check each devices documentation to make sure). Depending on the devices you have, you can either press a button (on the device itself, or in its configuration utility) or enter a PIN (a unique Personal Identification Number that allows one device to authenticate the other) in each of the two devices. When WPS is activated on a device, it has two minutes to find another device that also has WPS activated. Then, the two devices connect and set up a secure network by themselves. For more information on using WPS, see Section 10.3 on page 72. 1.7 Wall Mounting You may need screw anchors if mounting on a concrete or brick wall. Table 2 Wall Mounting Information Distance between holes M4 Screws Screw anchors (optional) 11 cm Two Two 1 Select a position free of obstructions on a wall strong enough to hold the weight of the device. 2 Mark two holes on the wall at the appropriate distance apart for the screws. NBG6515 Users Guide 15 Chapter 1 Getting to Know Your NBG Be careful to avoid damaging pipes or cables located inside the wall when drilling holes for the screws. 3 If using screw anchors, drill two holes for the screw anchors into the wall. Push the anchors into the full depth of the holes, then insert the screws into the anchors. Do not insert the screws all the way in - leave a small gap of about 0.5 cm. If not using screw anchors, use a screwdriver to insert the screws into the wall. Do not insert the screws all the way in - leave a gap of about 0.5 cm. 4 Make sure the screws are fastened well enough to hold the weight of the NBG with the connection cables. 5 Align the holes on the back of the NBG with the screws on the wall. Hang the NBG on the screws. Figure 2 Wall Mounting Example NBG6515 Users Guide 16 CHAPTER 2 Connection Wizard 2.1 Overview This chapter provides information on the wizard setup screens in the Web Configurator. The Web Configurators wizard setup helps you configure your device to access the Internet. Refer to your ISP for your Internet account information. Leave a field blank if you dont have that information. 2.2 Accessing the Wizard Launch your web browser and type "http://192.168.1.1" as the website address. Type "1234"

(default) as the password and click Login. Note: The Wizard appears when the NBG is accessed for the first time or when you reset the NBG to its default factory settings. The Wizard screen opens. Choose your Language and click Connect to Internet. Figure 3 Welcome 2.3 Connect to Internet The NBG offers four Internet connection types. They are Static IP, DHCP, PPPoE, or PPTP

(supported in the next firmware version). The wizard attempts to detect which WAN connection type you are using. NBG6515 Users Guide 17 Chapter 2 Connection Wizard Figure 4 Detecting your Internet Connection Type If the wizard does not detect a connection type, you must select one from the drop-down list box. Check with your ISP to make sure you use the correct type. Note: If you get an error message, check your hardware connections. Make sure your Internet connection is up and running. The following screen depends on your Internet connection type. Enter the details provided by your Internet Service Provider (ISP) in the fields (if any). Figure 5 Internet Connection Type Your NBG detects the following Internet Connection type. Table 3 Internet Connection Type CONNECTION TYPE Static IP DHCP DESCRIPTION Select the Static IP if an administrator assigns the IP address of your computer. Select the DHCP (Dynamic Host Configuration Protocol) option when the WAN port is used as a regular Ethernet. Select the PPPoE (Point-to-Point Protocol over Ethernet) option for a dial-up connection. Select the PPTP (Point-to-Point Tunneling Protocol) option for a dial-up connection, and your ISP gave you an IP address and/or subnet mask. PPPoE PPTP Note: PPTP will be supported in the next firmware version. 2.3.1 Connection Type: DHCP Choose DHCP as the Internet Connection Type when the WAN port is used as a regular Ethernet. Click Next. NBG6515 Users Guide 18 Chapter 2 Connection Wizard Figure 6 Internet Connection Type: DHCP Note: If you get an error screen after clicking Next, you might have selected the wrong Internet Connection type. Click Back, make sure your Internet connection is working and select the right Connection Type. Contact your ISP if you are not sure of your Internet Connection type. 2.3.2 Connection Type: Static IP Choose Static IP as the Internet Connection Type if your ISP assigned an IP address for your Internet connection. Click Next. Figure 7 Internet Connection Type: Static IP The following table describes the labels in this screen. DESCRIPTION Select the Static IP option. Table 4 Internet Connection Type: Static IP LABEL Internet Connection Type IP Address Subnet Mask Default Gateway Enter the IP address provided by your ISP. Enter the IP subnet mask in this field. Enter the gateway IP address in this field. NBG6515 Users Guide 19 Chapter 2 Connection Wizard Table 4 Internet Connection Type: Static IP (continued) LABEL Primary DNS DESCRIPTION DNS (Domain Name System) is for mapping a domain name to its corresponding IP address and vice versa. The DNS server is extremely important because without it, you must know the IP address of a computer before you can access it. The NBG uses a system DNS server

(in the order you specify here) to resolve domain names for DDNS and the time server. Enter the primary DNS server's IP address in the fields provided. Secondary DNS Enter the secondary DNS server's IP address in the fields provided. Exit Back Next Click this to close the wizard screen without saving. Click this to return to the previous screen. Click this to continue. 2.3.3 Connection Type: PPPoE Point-to-Point Protocol over Ethernet (PPPoE) functions as a dial-up connection. PPPoE is an IETF

(Internet Engineering Task Force) standard specifying how a host personal computer interacts with a broadband modem (for example DSL, cable, wireless, etc.) to achieve access to high-speed data networks. For the service provider, PPPoE offers an access and authentication method that works with existing access control systems (for instance, RADIUS). One of the benefits of PPPoE is the ability to let end users access one of multiple network services, a function known as dynamic service selection. This enables the service provider to easily create and offer new IP services for specific users. Operationally, PPPoE saves significant effort for both the subscriber and the ISP/carrier, as it requires no specific configuration of the broadband modem at the subscriber's site. By implementing PPPoE directly on the NBG (rather than individual computers), the computers on the LAN do not need PPPoE software installed, since the NBG does that part of the task. Furthermore, with NAT, all of the LAN's computers will have Internet access. Figure 8 Internet Connection Type: PPPoE NBG6515 Users Guide 20 Chapter 2 Connection Wizard The following table describes the labels in this screen. DESCRIPTION Select the PPPoE option for a dial-up connection. Table 5 Internet Connection Type: PPPoE LABEL Internet Connection Type User Name Password Exit Back Next Type the user name given to you by your ISP. Type the password associated with the user name above. Click this to close the wizard screen without saving. Click this to return to the previous screen. Click this to continue. 2.3.4 Connection Type: PPTP Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables transfers of data from a remote client to a private server, creating a Virtual Private Network (VPN) using TCP/IP-based networks. PPTP supports on-demand, multi-protocol, and virtual private networking over public networks, such as the Internet. Refer to the appendix for more information on PPTP. The NBG supports one PPTP server connection at any given time. Note: This Internet connection type will be supported in the next firmware version. Figure 9 Internet Connection Type: PPTP The following table describes the fields in this screen Table 6 Internet Connection Type: PPTP LABEL Internet Connection Type Dynamic IP DESCRIPTION Select PPTP from the drop-down list box. To configure a PPTP client, you must configure the User Name and Password fields for a PPP connection and the PPTP parameters for a PPTP connection. Select this radio button if your ISP did not assign you a fixed IP address. NBG6515 Users Guide 21 Chapter 2 Connection Wizard DESCRIPTION Select this radio button, provided by your ISP to give the NBG a fixed, unique IP address. Type the server IP address of the PPTP server. Table 6 Internet Connection Type: PPTP (continued) LABEL Static IP PPTP Server IP Address User Name Password PPTP Address PPTP Subnet Mask PPTP Gateway IP Address Exit Back Next Click this to close the wizard screen without saving. Click this to return to the previous screen. Click this to continue. Type the user name given to you by your ISP. Type the password associated with the User Name above. Type the (static) IP address assigned to you by your ISP. Type the subnet mask assigned to you by your ISP (if given). Type the gateway IP address of the PPTP server. The NBG connects to the Internet. Figure 10 Connecting to the Internet Note: If the Wizard successfully connects to the Internet, it proceeds to the next step. If you get an error message, go back to the previous screen and make sure you have entered the correct information provided by your ISP. 2.4 Router Password Change the login password in the following screen. Enter the new password and retype it to confirm. Click Next to proceed with the Wireless Security screen. NBG6515 Users Guide 22 Chapter 2 Connection Wizard Figure 11 Router Password 2.5 Wireless Security Configure Wireless Settings. Configure the wireless network settings on your NBG in the following screen. The fields that show up depend on the kind of security you select. 2.5.1 Wireless Security: No Security Choose No Security in the Wireless Security screen to let wireless devices within range access your wireless network. Figure 12 Wireless Security: No Security NBG6515 Users Guide 23 Chapter 2 Connection Wizard The following table describes the labels in this screen. Table 7 Wireless Security: No Security LABEL Wireless Network Name

(SSID) DESCRIPTION Enter a descriptive name (up to 32 printable 7-bit ASCII characters) for the wireless LAN. If you change this field on the NBG, make sure all wireless stations use the same SSID in order to access the network. Select a Security level from the drop-down list box. Security mode Exit Back Next Choose None to have no wireless LAN security configured. If you do not enable any wireless security on your NBG, your network is accessible to any wireless networking device that is within range. Click this to close the wizard screen without saving. Click this to return to the previous screen. Click this to continue. 2.5.2 Wireless Security: WPA-PSK/WPA2-PSK Choose WPA-PSK or WPA2-PSK security in the Wireless Security screen to set up a password for your wireless network. Figure 13 Wireless Security: WPA-PSK/WPA2-PSK The following table describes the labels in this screen. Table 8 Wireless Security: WPA-PSK/WPA2-PSK LABEL Wireless Network Name

(SSID) DESCRIPTION Enter a descriptive name (up to 32 printable 7-bit ASCII characters) for the wireless LAN. If you change this field on the NBG, make sure all wireless stations use the same SSID in order to access the network. Select a Security level from the drop-down list box. Security mode Choose WPA-PSK or WPA2-PSK security to configure a Pre-Shared Key. Choose this option only if your wireless clients support WPA-PSK or WPA2-PSK respectively. Type from 8 to 63 case-sensitive ASCII characters. You can set up the most secure wireless connection by configuring WPA in the wireless LAN screens. Wireless password Verify Password Retype the password to confirm. Exit Click this to close the wizard screen without saving. NBG6515 Users Guide 24 Chapter 2 Connection Wizard Table 8 Wireless Security: WPA-PSK/WPA2-PSK (continued) LABEL Back Next DESCRIPTION Click this to return to the previous screen. Click this to continue. Congratulations! Open a web browser, such as Internet Explorer, to visit your favorite website. Note: If you cannot access the Internet when your computer is connected to one of the NBGs LAN ports, check your connections. Then turn the NBG off, wait for a few seconds then turn it back on. If that does not work, log in to the web configurator again and check you have typed all information correctly. See the Users Guide for more suggestions. Figure 14 Device is going to restart now You can also click GO to open the Easy Mode Web Configurator of your NBG. You have successfully set up your NBG to operate on your network and access the Internet. You are now ready to connect wirelessly to your NBG and access the Internet. NBG6515 Users Guide 25 CHAPTER 3 Introducing the Web Configurator 3.1 Overview This chapter describes how to access the NBG Web Configurator and provides an overview of its screens. The Web Configurator is an HTML-based management interface that allows easy setup and management of the NBG via Internet browser. Use Internet Explorer 6.0 and later or Netscape Navigator 7.0 and later versions or Safari 2.0 or later versions. The recommended screen resolution is 1024 by 768 pixels. In order to use the Web Configurator you need to allow:

Web browser pop-up windows from your device. Web pop-up blocking is enabled by default in Windows XP SP (Service Pack) 2. JavaScript (enabled by default). Java permissions (enabled by default). Refer to the Troubleshooting chapter (Chapter 26 on page 167) to see how to make sure these functions are allowed in Internet Explorer. 3.2 Accessing the Web Configurator 1 Make sure your NBG hardware is properly connected and prepare your computer or computer network to connect to the NBG (refer to the Quick Start Guide). 2 3 Launch your web browser. Type "http://192.168.1.1" as the website address. Your computer must be in the same subnet in order to access this website address. 3.2.1 Login Screen Note: If this is the first time you are accessing the Web Configurator, you may be redirected to the Wizard. Refer to Chapter 2 on page 17 for the Connection Wizard screens. The Web Configurator initially displays the following login screen. NBG6515 Users Guide 26 Chapter 3 Introducing the Web Configurator Figure 15 Login screen The following table describes the labels in this screen. Table 9 Login screen LABEL Password Language DESCRIPTION Type "1234" (default) as the password. Select the language you want to use to configure the Web Configurator. Click Login. This shows the current weather, either in celsius or fahrenheit, of the city you specify in Section 3.2.3.1 on page 29. This shows the time (hh:mm:ss) and date (yyyy:mm:dd) of the timezone you select in Section 3.2.3.2 on page 29 or Section 25.5 on page 162. The time is in 24-hour format, for example 15:00 is 3:00 PM. 3.2.2 Password Screen You should see a screen asking you to change your password (highly recommended) as shown next. Figure 16 Change Password Screen NBG6515 Users Guide 27 Chapter 3 Introducing the Web Configurator The following table describes the labels in this screen. DESCRIPTION Type a new password. Table 10 Change Password Screen LABEL New Password Retype to Confirm Retype the password for confirmation. Apply Ignore Click Apply to save your changes back to the NBG. Click Ignore if you do not want to change the password this time. Note: The management session automatically times out when the time period set in the Administrator Inactivity Timer field expires (default five minutes; go to Chapter 25 on page 160 to change this). Simply log back into the NBG if this happens. 3.2.3 Home Screen If you have previously logged into the Web Configurator but did not click Logout, you may be redirected to the Home screen. You can also open this screen by clicking Home (

mode screens. or

) in the Easy Mode or Expert The Home screen displays as follows. Figure 17 Home Screen The following table describes the labels in this screen. Table 11 Home Screen LABEL Go Language DESCRIPTION Click this to open the Easy mode Web Configurator. Select a language to go to the Easy mode Web Configurator. NBG6515 Users Guide 28 Chapter 3 Introducing the Web Configurator Table 11 Home Screen (continued) LABEL DESCRIPTION

(This is just an example). This shows the current weather, either in celsius or fahrenheit, of the city you specify in Section 3.2.3.1 on page 29.

(This is just an example). This shows the time (hh:mm:ss) and date (yyyy:mm:dd) of the timezone you select in Section 3.2.3.2 on page 29 or Section 25.5 on page 162. 3.2.3.1 Weather Edit You can change the temperature unit and select the location for which you want to know the weather. Click the icon to change the Weather display. Figure 18 Change Weather The following table describes the labels in this screen. Table 12 Change Weather LABEL oC or oF Change Location Finish DESCRIPTION Choose which temperature unit you want the NBG to display. Select the location for which you want to know the weather. If the city you want is not listed, choose one that is closest to it. Click this to apply the settings and refresh the date and time display. 3.2.3.2 Time/Date Edit One timezone can cover more than one country. You can choose a particular country in which the NBG is located and have the NBG display and use the current time and date for its logs. Click the icon to change the Weather display. Figure 19 Change Password Screen The following table describes the labels in this screen. Table 13 Change Password Screen LABEL Change time zone Finish DESCRIPTION Select the specific country whose current time and date you want the NBG to display. Click this to apply the settings and refresh the weather display. Note: You can also edit the timezone in Section 25.5 on page 162. NBG6515 Users Guide 29 Chapter 3 Introducing the Web Configurator 3.3 Resetting the NBG If you forget your password or IP address, or you cannot access the Web Configurator, you will need to use the RESET button at the back of the NBG to reload the factory-default configuration file. This means that you will lose all configurations that you had previously saved, the password will be reset to 1234 and the IP address will be reset to 192.168.1.1. 3.3.1 Procedure to Use the Reset Button 1 Make sure the power LED is on. 2 3 Press the RESET button for longer than 1 second to restart/reboot the NBG. Press the RESET button for longer than five seconds to set the NBG back to its factory-default configurations. NBG6515 Users Guide 30 CHAPTER 4 Monitor 4.1 Overview This chapter discusses read-only information related to the device state of the NBG. Note: To access the Monitor screens, you can also click the links in the Summary table of the Status screen to view the bandwidth consumed, packets sent/received as well as the status of clients connected to the NBG. 4.2 What You Can Do Use the Log (Section 4.3 on page 31) screen to see the logs for the activity on the NBG. Use the DHCP Table screen (Section 4.4 on page 32) to view information related to your DHCP status. Use the Packet Statistics screen (Section 4.5 on page 33) to view port status, packet specific statistics, the "system up time" and so on. Use the WLAN 2.4G Station Status screen (Section 4.6 on page 34) to view the wireless stations that are currently associated to the NBG through the wireless 2.4G network. Use the WLAN 5G Station Status screen (Section 4.7 on page 35) to view the wireless stations that are currently associated to the NBG through the wireless 5G network. 4.3 The Log Screen The Web Configurator allows you to look at all of the NBGs logs in one location. 4.3.1 View Log Use the View Log screen to see the logged messages for the NBG. The log wraps around and deletes the old entries after it fills. Select what logs you want to see from the Display drop list. Click Refresh to renew the log screen. Click Clear to delete all the logs. NBG6515 Users Guide 31 Chapter 4 Monitor Figure 20 View Log You can configure which logs to display in the View Log screen. 4.4 DHCP Table DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows individual clients to obtain TCP/IP configuration at start-up from a server. You can configure the NBGs LAN as a DHCP server or disable it. When configured as a server, the NBG provides the TCP/IP configuration for the clients. If DHCP service is disabled, you must have another DHCP server on that network, or else the computer must be manually configured. Click the DHCP Table (Details...) hyperlink in the Status screen. Read-only information here relates to your DHCP status. The DHCP table shows current DHCP client information (including IP Address, Host Name and MAC Address) of all network clients using the NBGs DHCP server. Figure 21 Summary: DHCP Table NBG6515 Users Guide 32 Chapter 4 Monitor The following table describes the labels in this screen. Table 14 Summary: DHCP Table LABEL

#

MAC Address DESCRIPTION This is the index number of the host computer. This field shows the MAC address of the computer with the name in the Host Name field. Every Ethernet device has a unique MAC (Media Access Control) address which uniquely identifies a device. The MAC address is assigned at the factory and consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02. This field displays the IP address relative to the # field listed above. This field displays the computer host name. This field displays the time when the IP address and MAC address association ends. Click Refresh to renew the screen. IP Address Host Name Expires in Refresh 4.5 Packet Statistics Click the Packet Statistics (Details...) hyperlink in the Status screen. Read-only information here includes port status, packet specific statistics and the "system up time". The Poll Interval(s) field is configurable and is used for refreshing the screen. Figure 22 Summary: Packet Statistics NBG6515 Users Guide 33 Chapter 4 Monitor The following table describes the labels in this screen. Table 15 Summary: Packet Statistics LABEL Port Status DESCRIPTION This is the NBGs port type. For the LAN ports, this displays the port speed and duplex setting or Down when the line is disconnected. For the WAN port, it displays the port speed and duplex setting if youre using Ethernet encapsulation and Idle (line (ppp) idle), Dial (starting to trigger a call) and Drop (dropping a call) if you're using PPPoE or PPTP encapsulation. This field displays Down when the line is disconnected. For WLAN 2.4G/5G, it displays the maximum transmission rate when the WLAN 2.4G/5G is enabled and Down when the WLAN 2.4G/5G is disabled. This is the number of transmitted packets on this port. This is the number of received packets on this port. This is the number of collisions on this port. This displays the transmission speed in bytes per second on this port. This displays the reception speed in bytes per second on this port. This is the total time the NBG has been on. Enter the time interval in seconds for refreshing statistics in this field. Click Refresh Now to renew the screen. TxPkts RxPkts Collisions Tx kb/s Rx kb/s System Up Time Poll Interval(s) Refresh Now 4.6 WLAN 2.4G Station Status Click the WLAN 2.4G Station Status (Details...) hyperlink in the Status screen. View the wireless stations that are currently associated to the NBG in the Association List. Association means that a wireless client (for example, your network or computer with a wireless network card) has connected successfully to the AP (or wireless router) using the same SSID, channel and security settings. Figure 23 Summary: Wireless Association List The following table describes the labels in this screen. Table 16 Summary: Wireless Association List LABEL

#

MAC Address DESCRIPTION This is the index number of an associated wireless station. This field displays the MAC address of an associated wireless station. NBG6515 Users Guide 34 Chapter 4 Monitor Table 16 Summary: Wireless Association List (continued) LABEL Association Time Refresh Click Refresh to reload the list. DESCRIPTION This field displays the time a wireless station first associated with the NBGs WLAN network. 4.7 WLAN 5G Station Status Click the WLAN 5G Station Status (Details...) hyperlink in the Status screen. View the wireless stations that are currently associated to the NBG in the Association List. Association means that a wireless client (for example, your network or computer with a wireless network card) has connected successfully to the AP (or wireless router) using the same SSID, channel and security settings. Figure 24 Summary: Wireless Association List The following table describes the labels in this screen. Table 17 Summary: Wireless Association List LABEL

#

MAC Address Association Time Refresh Click Refresh to reload the list. DESCRIPTION This is the index number of an associated wireless station. This field displays the MAC address of an associated wireless station. This field displays the time a wireless station first associated with the NBGs WLAN network. NBG6515 Users Guide 35 CHAPTER 5 NBG Modes 5.1 Overview This chapter introduces the different modes available on your NBG. First, the term mode refers to two things in this Users Guide. Web Configurator mode. This refers to the Web Configurator interface you want to use for editing NBG features. Device mode. This is the operating mode of your NBG, or simply how the NBG is being used in the network. 5.1.1 Web Configurator Modes This refers to the configuration interface of the Web Configurator, which has two modes:

Easy. The Web Configurator shows this mode by default. Refer to Chapter 6 on page 38 for more information on the screens in this mode. This interface may be sufficient for users who just want to use the device. Expert. Advanced users can change to this mode to customize all the functions of the NBG. Click Expert Mode after logging into the Web Configurator. The Users Guide Chapter 3 on page 26 through Chapter 25 on page 160 discusses the screens in this mode. 5.1.2 Device Modes This refers to the operating mode of the NBG, which can act as a:

Router. This is the default device mode of the NBG. Use this mode to connect the local network to another network, like the Internet. Go to Section 7.3 on page 50 to view the Status screen in this mode. Access Point. Use this mode if you want to extend your network by allowing network devices to connect to the NBG wirelessly. Go to Section 8.4 on page 58 view the Status screen in this mode. Universal Repeater: In this mode, the NBG can be an access point and a wireless client at the same time. Use this mode if there is an existing wireless router or access point in your network and you also want to allow clients to connect to the NBG. Go to Section 9.5 on page 64 to view the Status screen in this mode. For more information on these modes and to change the mode of your NBG, refer to Section 23.10 on page 170. The menu for changing device modes is available in Expert mode only. Note: Choose your Device Mode carefully to avoid having to change it later. NBG6515 Users Guide 36 Chapter 5 NBG Modes When changing to another mode, the IP address of the NBG changes. The running applications and services of the network devices connected to the NBG can be interrupted. NBG6515 Users Guide 37 CHAPTER 6 Easy Mode 6.1 Overview The Web Configurator is set to Easy Mode by default. You can configure several key features of the NBG in this mode. This mode is useful to users who are not fully familiar with some features that are usually intended for network administrators. When you log in to the Web Configurator, the following screen opens. Figure 25 Easy Mode: Network Map Navigation Panel Network Map Go to Status Screen Control Panel Click Status to open the following screen screen. NBG6515 Users Guide 38 Chapter 6 Easy Mode Figure 26 Easy Mode: Status Screen Navigation Panel Go to Network Map Screen Status Screen Control Panel Click NBG6515 to open the pop up menu. Figure 27 Easy Mode: Pop Up Menu Navigation Panel Pop Up Menu Control Panel NBG6515 Users Guide 39 Chapter 6 Easy Mode 6.2 What You Can Do You can do the following in this mode:

Use this Navigation Panel (Section 6.4 on page 40) to opt out of the Easy mode. Use the Network Map screen (Section 6.5 on page 40) to check if your NBG can ping the gateway and whether it is connected to the Internet. Use the Control Panel (Section 6.6 on page 41) to configure and enable NBG features, including wireless security, wireless scheduling and bandwidth management and so on. Use the Status Screen screen (Section 6.7 on page 48) to view read-only information about the NBG, including the WAN IP, MAC Address of the NBG and the firmware version. Use the Pop Up Menu to refresh the Router or run the eaZy123 wizard (Section 2.2 on page 17). 6.3 What You Need to Know Between the different device modes, the Control Panel (Section 6.6 on page 41) changes depending on which features are applicable to the mode:

Router Mode: All Control Panel features are available. Access Point Mode: Only Power Saving and Wireless Security are available. 6.4 Navigation Panel Use this navigation panel to opt out of the Easy mode. Figure 28 Navigation Panel The following table describes the labels in this screen. Table 18 Navigation Panel ITEM Home Expert Mode Logout DESCRIPTION Click this to go to the Login page. Click this to change to Expert mode and customize features of the NBG. Click this to end the Web Configurator session. 6.5 Network Map Note: The Network MAP is viewable by Windows XP (need to install patch), Windows Vista and Windows 7 users only. For Windows XP (Service Pack 2) users, you can see the network devices connected to the NBG by downloading the LLTD (Link Layer Topology Discovery) patch from the Microsoft Website. NBG6515 Users Guide 40 Chapter 6 Easy Mode Note: Dont worry if the Network Map does not display in your web browser. This feature may not be supported by your system. You can still configure the Control Panel

(Section 6.6 on page 41) in the Easy Mode and the NBG features that you want to use in the Expert Mode. When you log into the Network Configurator, the Network Map is shown as follows. Figure 29 Network Map The line connecting the NBG to the gateway becomes green when the NBG is able to ping the gateway. It becomes red when the ping initiating from the NBG does not get a response from the gateway. The same rule applies to the line connecting the gateway to the Internet. You can also view the devices (represented by icons indicating the kind of network device) connected to the NBG, including those connecting wirelessly. Right-click on the NBG icon to refresh the network map and go to the Wizard. Right click on the other icons to view information about the device. 6.6 Control Panel The features configurable in Easy Mode are shown in the Control Panel. Figure 30 Control Panel Switch ON to enable the feature. Otherwise, switch OFF. If the feature is turned on, the green light flashes. If it is turned off, the red light flashes. Additionally, click the feature to open a screen where you can edit its settings. NBG6515 Users Guide 41 Chapter 6 Easy Mode The following table describes the labels in this screen. Table 19 Control Panel ITEM Game Engine DESCRIPTION Switch ON to maximize bandwidth for gaming traffic in your network. Otherwise, switch OFF. Power Saving Refer to Section 6.6.1 on page 42 to see this screen. Click this to schedule the wireless feature of the NBG. Disabling the wireless function helps lower the energy consumption of the NBG. Switch ON to apply wireless scheduling. Otherwise, switch OFF. Content Filter Refer to Section 6.6.2 on page 43 to see this screen. Click this to restrict access to certain websites, based on keywords contained in URLs, to which you do not want users in your network to open. Bandwidth Management Firewall Wireless Security Switch ON to apply website filtering. Otherwise, switch OFF. Refer to Section 6.6.3 on page 44 to see this screen. Click this to edit bandwidth management for predefined applications. Switch ON to have the NBG management bandwidth for uplink and downlink traffic according to an application or service. Otherwise, switch OFF. Refer to Section 6.6.4 on page 45 to see this screen. Switch ON to ensure that your network is protected from Denial of Service (DoS) attacks. Otherwise, switch OFF. Refer to Section 6.6.5 on page 45 to see this screen. Click this to configure the wireless security, such as SSID, security mode and WPS key on your NBG. Refer to Section 6.6.6 on page 46 to see this screen. 6.6.1 Game Engine When this feature is enabled, the NBG maximizes the bandwidth for gaming traffic that it forwards out through an interface. NBG6515 Users Guide 42 Chapter 6 Easy Mode Figure 31 Game Engine Note: When this is switched on, the Game Console tab in the Bandwidth Management screen is automatically positioned on top. Turn this off if your network is not using gaming. Click OK to close this screen. 6.6.2 Power Saving Use this screen to set the day of the week and time of the day when your wireless LAN is turned on and off. Wireless LAN scheduling is disabled by default. Disabling the wireless capability lowers the energy consumption of the of the NBG. Figure 32 Power Saving NBG6515 Users Guide 43 Chapter 6 Easy Mode The following table describes the labels in this screen. Table 20 Power Saving LABEL Wireless Radio WLAN Status DESCRIPTION Select the wireless radio to set its power saving settings. Select On or Off to specify whether the Wireless LAN is turned on or off (depending on what you selected in the WLAN Status field). This field works in conjunction with the Day and Except for the following times fields. Select Everyday or the specific days to turn the Wireless LAN on or off. If you select Everyday you can not select any specific days. This field works in conjunction with the Except for the following times field. Select a begin time using the first set of hour and minute (min) drop down boxes and select an end time using the second set of hour and minute (min) drop down boxes. If you have chosen On earlier for the WLAN Status the Wireless LAN will turn on between the two times you enter in these fields. If you have chosen Off earlier for the WLAN Status the Wireless LAN will turn off between the two times you enter in these fields. In this time format, midnight is 00:00 and progresses up to 24:00. For example, 6:00 PM is 18:00. Click Apply to save your changes back to the NBG. Click Cancel to close this screen. Day For the following times (24-Hour Format) Apply Cancel 6.6.3 Content Filter Use this screen to restrict access to certain websites, based on keywords contained in URLs, to which you do not want users in your network to open. Figure 33 Content Filter NBG6515 Users Guide 44 Chapter 6 Easy Mode The following table describes the labels in this screen. Table 21 Content Filter LABEL Add DESCRIPTION Click Add after you have typed a keyword. Repeat this procedure to add other keywords. Up to 64 keywords are allowed. Note: The NBG does not recognize wildcard characters as keywords. When you try to access a web page containing a keyword, you will get a message telling you that the content filter is blocking this request. Highlight a keyword in the text box and click Delete to remove it. The keyword disappears from the text box after you click Apply. Click Apply to save your changes. Click Cancel to close this screen without saving any changes. Delete Apply Cancel 6.6.4 Bandwidth Management Use this screen to set bandwidth allocation to pre-defined services and applications for bandwidth allocation. The NBG uses bandwidth management for incoming and outgoing traffic. Rank the services and applications by dragging them accordingly from High to Low and click Apply. Click Cancel to close the screen. Figure 34 Bandwidth Management Use your mouse to drag the items according to how you want to prioritze them. Left-click and slide up or down. 6.6.5 Firewall Enable this feature to protect the network from Denial of Service (DoS) attacks. The NBG blocks repetitive pings from the WAN that can otherwise cause systems to slow down or hang. NBG6515 Users Guide 45 Chapter 6 Easy Mode Figure 35 Firewall Click OK to close this screen. 6.6.6 Wireless Security Use this screen to configure security for your the Wireless LAN. You can enter the SSID and select the wireless security mode in the following screen. Note: You can enable the Wireless function of your NBG by first turning on the switch in the back panel. Figure 36 Wireless Security NBG6515 Users Guide 46 Chapter 6 Easy Mode The following table describes the general wireless LAN labels in this screen. Table 22 Wireless Security LABEL Wireless Radio Wireless Network Name

(SSID) Security Mode DESCRIPTION Select the wireless radio to set its security setting.

(Service Set IDentity) The SSID identifies the Service Set with which a wireless station is associated. Wireless stations associating to the access point (AP) must have the same SSID. Enter a descriptive name (up to 32 keyboard characters) for the wireless LAN. Select WPA-PSK or WPA2-PSK to add security on this wireless network. The wireless clients which want to associate to this network must have same wireless security settings as this device. After you select to use a security, additional options appears in this screen. Wireless Password Select No Security to allow any client to connect to this network without authentication. This field appears when you choose wither WPA-PSK or WPA2-PSK as the security mode. Type a pre-shared key from 8 to 63 case-sensitive keyboard characters. Verify Password Type the password again to confirm. Apply Cancel WPS Click Apply to save your changes back to the NBG. Click Cancel to close this screen. Click this to configure the WPS screen. You can transfer the wireless settings configured here (Wireless Security screen) to another wireless device that supports WPS. 6.6.7 WPS Use this screen to add a wireless station to the network using WPS. Click WPS in the Wireless Security to open the following screen. Figure 37 Wireless Security: WPS NBG6515 Users Guide 47 Chapter 6 Easy Mode The following table describes the labels in this screen. Table 23 Wireless Security: WPS LABEL Wireless Security WPS DESCRIPTION Click this to go back to the Wireless Security screen. Create a secure wireless network simply by pressing a button. The NBG scans for a WPS-enabled device within the range and performs wireless security information synchronization. Note: After you click the WPS button on this screen, you have to press a similar button in the wireless station utility within 2 minutes. To add the second wireless station, you have to press these buttons on both device and the wireless station again after the first 2 minutes. Register Create a secure wireless network simply by entering a wireless client's PIN (Personal Identification Number) in the NBGs interface and pushing this button. Type the same PIN number generated in the wireless stations utility. Then click Register to associate to each other and perform the wireless security information synchronization. Click Exit to close this screen. Exit 6.7 Status Screen in Easy Mode In the Network Map screen, click Status to view read-only information about the NBG. Figure 38 Status Screen in Easy Mode The following table describes the labels in this screen. Table 24 Status Screen in Easy Mode ITEM Name Time WAN IP MAC Address Firmware Version DESCRIPTION This is the name of the NBG in the network. You can change this in the Maintenance >

General screen in Section 25.3 on page 160. This is the current system date and time. The date is in YYYY:MM:DD (Year-Month-Day) format. The time is in HH:MM:SS

(Hour:Minutes:Seconds) format. This is the IP address of the WAN port. This is the MAC address of the NBG. This shows the firmware version of the NBG. The firmware version format shows the trunk version, model code and release number. NBG6515 Users Guide 48 Chapter 6 Easy Mode Table 24 Status Screen in Easy Mode (continued) ITEM Wireless 2.4G Network Name

(SSID) Security Wireless 5G Network Name

(SSID) Security DESCRIPTION This shows the SSID of the wireless 2.4G network. You can configure this in the Wireless Security screen (Section 6.6.6 on page 46; Section 11.3.1.1 on page 81). This shows the wireless security used by the NBG for the 2.4G wireless radio. This shows the SSID of the wireless 5G network. You can configure this in the Wireless Security screen (Section 6.6.6 on page 46; Section 11.3.1.1 on page 81). This shows the wireless security used by the NBG for the 5G wireless radio. NBG6515 Users Guide 49 CHAPTER 7 Router Mode 7.1 Overview The NBG is set to router mode by default. Routers are used to connect the local network to another network (for example, the Internet). In the figure below, the NBG connects the local network

(LAN1 ~ LAN4) to the Internet. Figure 39 NBG Network Router Modem Note: The Status screen is shown after changing to the Expert mode of the Web Configurator. It varies depending on the device mode of your NBG. 7.2 What You Can Do Use the Status screen (Section 7.3 on page 50) to view read-only information about your NBG. 7.3 Status Screen Click to open the status screen. NBG6515 Users Guide 50 Chapter 7 Router Mode Figure 40 Status Screen: Router Mode The following table describes the icons shown in the Status screen. Table 25 Status Screen Icon Key: Router Mode ICON DESCRIPTION Click this icon to view copyright and a link for related product information. Click this icon to go to Easy Mode. See Chapter 6 on page 38. Click this to go to the Home page. See Chapter 4 on page 31. Select a number of seconds or None from the drop-down list box to refresh all screen statistics automatically at the end of every time interval or to not refresh the screen statistics. Click this button to refresh the status screen statistics. NBG6515 Users Guide 51 Chapter 7 Router Mode Table 25 Status Screen Icon Key: Router Mode (continued) ICON DESCRIPTION Click this icon to see the Status page. The information in this screen depends on the device mode you select. Click this icon to see the Monitor navigation menu. Click this icon to see the Configuration navigation menu. Click this icon to see the Maintenance navigation menu. The following table describes the labels shown in the Status screen. Table 26 Status Screen: Router Mode LABEL Logout Device Information Host Name DESCRIPTION Click this at any time to exit the Web Configurator. Firmware Version Sys OP Mode WAN Information

- MAC Address

- IP Address

- IP Subnet Mask

- Default Gateway

- DHCP LAN Information

- MAC Address

- IP Address

- IP Subnet Mask

- DHCP WLAN 2.4G Information

- MAC Address

- SSID

- Channel

- Security WLAN 5G Information

- MAC Address

- SSID

- Channel

- Security System Status This is the System Name you enter in the Maintenance > General screen. It is for identification purposes. This is the firmware version and the date created. This is the device mode (Section 5.1.2 on page 36) to which the NBG is set - Router Mode. This shows the WAN Ethernet adapter MAC Address of your device. This shows the WAN ports IP address. This shows the WAN ports subnet mask. This shows the WAN ports gateway IP address. This shows the LAN ports DHCP role - Client or Server. This shows the LAN Ethernet adapter MAC Address of your device. This shows the LAN ports IP address. This shows the LAN ports subnet mask. This shows the LAN ports DHCP role - Server or None. This shows the wireless adapter MAC Address of your device. This shows a descriptive name used to identify the NBG in the wireless LAN. The default SSID is ZyXEL and the last 6 digits of the 2.4G MAC address (for example, ZyXEL734916). This shows the channel number which the NBG is currently using over the wireless LAN. This shows the level of wireless security the NBG is using. This shows the wireless adapter MAC Address of your device. This shows a descriptive name used to identify the NBG in the wireless LAN. The default SSID is ZyXEL, the last 6 digits of the 5G MAC address, and .speed (for example, ZyXEL734917.speed). This shows the channel number which the NBG is currently using over the wireless LAN. This shows the level of wireless security the NBG is using. NBG6515 Users Guide 52 Chapter 7 Router Mode Table 26 Status Screen: Router Mode (continued) LABEL Item Data DESCRIPTION This column shows the type of data the NBG is recording. This column shows the actual data recorded by the NBG. This is the total time the NBG has been on. This field displays your NBGs present date and time. System Up Time Current Date/Time System Resource

- CPU Usage

- Memory Usage System Setting

- Firewall

- Bandwidth Management

- UPnP

- Configuration Mode IPv6 Status Item Data Interface Status Interface Status Rate Summary DHCP Table Packet Statistics WLAN Station Status This displays what percentage of the NBGs processing ability is currently used. When this percentage is close to 100%, the NBG is running at full load, and the throughput is not going to improve anymore. If you want some applications to have more throughput, you should turn off other applications (for example, using bandwidth management.) This shows what percentage of the heap memory the NBG is using. This shows whether the firewall is enabled or not. This shows whether the bandwidth management is enabled or not. This shows whether UPnP is enabled or not. This shows the web configurator mode you are viewing - Expert. This column shows the type of data the IPv6 is using. This column shows the actual data used through the IPv6. This displays the NBG port types. The port types are: WAN, LAN and WLAN. For the LAN and WAN ports, this field displays Down (line is down) or Up (line is up or connected). For the WLAN, it displays Up when the WLAN is enabled or Down when the WLAN is disabled. For the LAN ports, this displays the port speed and duplex setting or N/A when the line is disconnected. For the WAN port, it displays the port speed and duplex setting if youre using Ethernet encapsulation and Idle (line (ppp) idle), Dial (starting to trigger a call) and Drop (dropping a call) if you're using PPPoE or PPTP encapsulation. This field displays N/A when the line is disconnected. For the WLAN, it displays the maximum transmission rate when the WLAN is enabled and N/

A when the WLAN is disabled. Click Details... to go to the Monitor > DHCP Table screen (Section 4.4 on page 32). Use this screen to view current DHCP client information. Click Details... to go to the Monitor > Packet Statistics screen (Section 4.5 on page 33). Use this screen to view port status and packet specific statistics. Click Details... to go to the Monitor > WLAN 2.4G / 5G Station Status screen (Section 4.7 on page 35). Use this screen to view the wireless stations that are currently associated to the NBG. 7.3.1 Navigation Panel Use the sub-menus on the navigation panel to configure NBG features. NBG6515 Users Guide 53 Chapter 7 Router Mode Figure 41 Navigation Panel: Router Mode The following table describes the sub-menus. Table 27 Navigation Panel: Router Mode LINK Status TAB FUNCTION This screen shows the NBGs general device, system and interface status information. Use this screen to access the wizard, and summary statistics tables. MONITOR Log DHCP Table Packet Statistics WLAN 2.4G Station Status WLAN 5G Station Status CONFIGURATION Network Wireless LAN 2.4G General MAC Filter Advanced QoS WPS WPS Device Scheduling Guest WLAN Use this screen to view the list of activities recorded by your NBG. Use this screen to view current DHCP client information. Use this screen to view port status and packet specific statistics. Use this screen to view the wireless stations that are currently associated to the NBG through the wireless 2.4G network. Use this screen to view the wireless stations that are currently associated to the NBG through the wireless 5G network. Use this screen to configure wireless 2.4G LAN. Use the MAC filter screen to configure the NBG to block access to devices or block the devices from accessing the NBG. This screen allows you to configure advanced wireless settings. Use this screen to configure Wi-Fi Multimedia Quality of Service (WMM QoS). WMM QoS allows you to prioritize wireless traffic according to the delivery requirements of individual services. Use this screen to configure WPS. Use this screen to add a wireless station using WPS. Use this screen to schedule the times the Wireless LAN is enabled. Use this screen to configure multiple BSSs on the NBG. NBG6515 Users Guide 54 Chapter 7 Router Mode Table 27 Navigation Panel: Router Mode (continued) LINK Wireless LAN 5G IPv6 WAN LAN DHCP Server General TAB General MAC Filter Advanced QoS WPS WPS Device Scheduling Guest WLAN General Internet Connection Advanced IP Advanced General Application Advanced General IP Static Route FUNCTION Use this screen to configure wireless 5G LAN. Use the MAC filter screen to configure the NBG to block access to devices or block the devices from accessing the NBG. This screen allows you to configure advanced wireless settings. Use this screen to configure Wi-Fi Multimedia Quality of Service (WMM QoS). WMM QoS allows you to prioritize wireless traffic according to the delivery requirements of individual services. Use this screen to configure WPS. Use this screen to add a wireless station using WPS. Use this screen to schedule the times the Wireless LAN is enabled. Use this screen to configure multiple BSSs on the NBG. Use this screen to configure the IPv6 connection type. This screen allows you to configure ISP parameters, WAN IP address assignment, DNS servers and the WAN MAC address. Use this screen to configure other advanced properties. Use this screen to configure LAN IP address and subnet mask. Use this screen to enable the NBGs DHCP server. Use this screen to assign IP addresses to specific individual computers based on their MAC addresses and to have DNS servers assigned by the DHCP server. Use this screen to enable NAT. Use this screen to configure servers behind the NBG. Use this screen to change your NBGs port triggering settings. Use this screen to set up dynamic DNS. Use this screen to configure IP static routes. General MAC Filtering Rule IP Filtering Rule Use this screen to activate/deactivate the firewall. Use the MAC filtering rule screen to configure the NBG to block access to devices or block the devices from accessing the NBG. Use the IP filtering rule screen to configure the NBG to block access to devices or block the devices from accessing the NBG. Use this screen to block certain web features and sites containing certain keywords in the URL. NAT DDNS Static Route Security Firewall Content Filter Management Bandwidth Management General Advanced Remote Management UPnP USB WWW General SMB/CIFS DLNA FTP Use this screen to enable bandwidth management. Use this screen to set the upstream bandwidth and edit a bandwidth management rule. Use this screen to be able to access the NBG from the LAN, WAN or both. Use this screen to enable UPnP on the NBG. Use this screen to enable file sharing through the NBG. Use this screen to have the NBG function as a DLNA-compliant media server, that lets DLNA-compliant media clients play video, audio, and photo content files stored on the connected USB storage device. Use this screen to have the NBG act as a FTP server. NBG6515 Users Guide 55 Chapter 7 Router Mode Table 27 Navigation Panel: Router Mode (continued) LINK MAINTENANCE FUNCTION TAB General Password Time Firmware Upgrade Backup Restore Restart Password Setup Time Setting Use this screen to view and change administrative settings such as system and domain names. Use this screen to change the password of your NBG. Use this screen to change your NBGs time and date. Use this screen to upload firmware to your NBG. Use this screen to backup and restore the configuration or reset the factory defaults to your NBG. This screen allows you to reboot the NBG without turning the power off. NBG6515 Users Guide 56 CHAPTER 8 Access Point Mode 8.1 Overview Use your NBG as an access point (AP) if you already have a router or gateway on your network. In this mode your NBG bridges a wired network (LAN) and wireless LAN (WLAN) in the same subnet. See the figure below for an example. Figure 42 Wireless Internet Access in Access Point Mode Router Many screens that are available in Router mode are not available in Access Point mode, such as bandwidth management and firewall. Note: See Chapter 10 on page 72 for an example of setting up a wireless network in Access Point mode. 8.2 What You Can Do Use the Status screen (Section 8.4 on page 58) to view read-only information about your NBG. Use the LAN screen (Section 8.5 on page 61) to set the IP address for your NBG acting as an access point. 8.3 What You Need to Know See Chapter 10 on page 72 for a tutorial on setting up a network with the NBG as an access point. NBG6515 Users Guide 57 Chapter 8 Access Point Mode 8.3.1 Setting your NBG to AP Mode 1 2 3 Log into the Web Configurator if you havent already. See the Quick start Guide for instructions on how to do this. To use your NBG as an access point, switch the physical button which placed at the bottom of the NBG to the middle place. Note: You have to log in to the Web Configurator again when you change modes. As soon as you do, your NBG is already in Access Point mode. The Web Configurator refreshes once the change to Access Point mode is successful. 8.3.2 Accessing the Web Configurator in Access Point Mode Log in to the Web Configurator in Access Point mode, do the following:

1 2 3 4 Connect your computer to the LAN port of the NBG. The default IP address of the NBG is 192.168.1.2. In this case, your computer must have an IP address in the range between 192.168.1.3 and 192.168.1.254. Click Start > Run on your computer in Windows. Type cmd in the dialog box. Enter ipconfig to show your computers IP address. If your computers IP address is not in the correct range then see Appendix C on page 191 for information on changing your computers IP address. After youve set your computers IP address, open a web browser such as Internet Explorer and type 192.168.1.2 as the web address in your web browser. Note: After clicking Login, the Easy mode appears. Refer to page 38 for the Easy mode screens. Change to Expert mode to see the screens described in the sections following this. 8.3.3 Configuring your WLAN, Bandwidth Management and Maintenance Settings The configuration of wireless, bandwidth management and maintenance settings in Access Point mode is the same as for Router Mode. See Chapter 11 on page 80 for information on the configuring your wireless network. See Chapter 21 on page 136 for information on configuring your Bandwidth Management screen. See Chapter 25 on page 160 to Chapter 25 on page 160 for information on configuring your Maintenance settings. 8.4 AP Mode Status Screen Click to open the Status screen. NBG6515 Users Guide 58 Chapter 8 Access Point Mode Figure 43 Status Screen: Access Point Mode The following table describes the labels shown in the Status screen. Table 28 Status Screen: Access Point Mode LABEL Logout Device Information Host Name DESCRIPTION Click this at any time to exit the Web Configurator. Firmware Version Sys OP Mode LAN Information

- MAC Address

- IP Address

- IP Subnet Mask

- DHCP WLAN 2.4G Information

- MAC Address

- SSID

- Channel This is the System Name you enter in the Maintenance > General screen. It is for identification purposes. This is the firmware version and the date created. This is the device mode (Section 5.1.2 on page 36) to which the NBG is set - Access Point Mode. This shows the LAN Ethernet adapter MAC Address of your device. This shows the LAN ports IP address. This shows the LAN ports subnet mask. This shows the LAN ports DHCP role - Server, Client or None. This shows the wireless adapter MAC Address of your device. This shows a descriptive name used to identify the NBG in the wireless 2.4G LAN. This shows the channel number which you select manually. NBG6515 Users Guide 59 Chapter 8 Access Point Mode Table 28 Status Screen: Access Point Mode (continued) LABEL DESCRIPTION This shows the level of wireless security the NBG is using.

- Security WLAN 5G Information

- MAC Address

- SSID

- Channel

- Security System Status Item Data System Up Time Current Date/Time System Resource

- CPU Usage

- Memory Usage System Setting

- Configuration Mode Interface Status Interface Status Rate Summary Packet Statistics WLAN Station Status This shows the wireless adapter MAC Address of your device. This shows a descriptive name used to identify the NBG in the wireless 5G LAN. This shows the channel number which you select manually. This shows the level of wireless security the NBG is using. This column shows the type of data the NBG is recording. This column shows the actual data recorded by the NBG. This is the total time the NBG has been on. This field displays your NBGs present date and time. This displays what percentage of the NBGs processing ability is currently used. When this percentage is close to 100%, the NBG is running at full load, and the throughput is not going to improve anymore. If you want some applications to have more throughput, you should turn off other applications (for example, using bandwidth management. This shows what percentage of the heap memory the NBG is using. This shows the web configurator mode you are viewing - Expert. This displays the NBG port types. The port types are: LAN, WLAN 2.4G, and WLAN 5G. For the LAN and WAN ports, this field displays Down (line is down) or Up (line is up or connected). For the WLAN, it displays Up when the WLAN is enabled or Down when the WLAN is disabled. For the LAN ports, this displays the port speed and duplex setting or N/A when the line is disconnected. For the WAN port, it displays the port speed and duplex setting if youre using Ethernet encapsulation and Idle (line (ppp) idle), Dial (starting to trigger a call) and Drop (dropping a call) if you're using PPPoE or PPTP encapsulation. This field displays N/A when the line is disconnected. For the WLAN, it displays the maximum transmission rate when the WLAN is enabled and N/

A when the WLAN is disabled. Click Details... to go to the Monitor > Packet Statistics screen (Section 4.5 on page 33). Use this screen to view port status and packet specific statistics. Click Details... to go to the Monitor > WLAN 2.4G / 5G Station Status screen (Section 4.7 on page 35). Use this screen to view the wireless stations that are currently associated to the NBG. 8.4.0.1 Navigation Panel Use the menu in the navigation panel to configure NBG features in Access Point mode. The following screen and table show the features you can configure in Access Point mode. NBG6515 Users Guide 60 Chapter 8 Access Point Mode Figure 44 Menu: Access Point Mode Refer to Table 27 on page 54 for descriptions of the labels shown in the Navigation panel. 8.5 LAN Screen Use this section to configure your LAN settings while in Access Point mode. Click Network > LAN to see the screen below. Note: If you change the IP address of the NBG in the screen below, you will need to log into the NBG again using the new IP address. Figure 45 Network > LAN > IP The table below describes the labels in the screen. NBG6515 Users Guide 61 Chapter 8 Access Point Mode Table 29 Network > LAN > IP DESCRIPTION LABEL Get from DHCP Click this to deploy the NBG as an access point in the network. Server When you enable this, the NBG gets its IP address from the networks DHCP server (for example, your ISP). Users connected to the NBG can now access the network (i.e., the Internet if the IP address is given by the ISP). The Web Configurator may no longer be accessible unless you know the IP address assigned by the DHCP server to the NBG. You need to reset the NBG to be able to access the Web Configurator again (see Section 25.7 on page 164 for details on how to reset the NBG). Use Defined LAN IP Address IP Address Also when you select this, you cannot enter an IP address for your NBG in the field below. Click this if you want to specify the IP address of your NBG. Or if your ISP or network administrator gave you a static IP address to access the network or the Internet. Type the IP address in dotted decimal notation. The default setting is 192.168.1.2. If you change the IP address you will have to log in again with the new IP address. IP Subnet Mask The subnet mask specifies the network number portion of an IP address. Your NBG will automatically calculate the subnet mask based on the IP address that you assign. Unless you are implementing subnetting, use the subnet mask computed by the NBG. Enter a Default Gateway IP Address (if your ISP or network administrator gave you one) in this field. Default Gateway DNS Assignment First DNS Server Second DNS Server Apply Reset Select From ISP if your ISP dynamically assigns DNS server information (and the NBG's WAN IP address). The field to the right displays the (read-only) DNS server IP address that the ISP assigns. Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's IP address in the field to the right. If you chose User-Defined, but leave the IP address set to 0.0.0.0, User-Defined changes to None after you click Apply. If you set a second choice to User-Defined, and enter the same IP address, the second User-Defined changes to None after you click Apply. Select None if you do not want to configure DNS servers. If you do not configure a DNS server, you must know the IP address of a computer in order to access it. Click Apply to save your changes to the NBG. Click Reset to reload the previous configuration for this screen. NBG6515 Users Guide 62 CHAPTER 9 Universal Repeater Mode 9.1 Overview In universal repeater mode, your NBG can act as an access point and wireless client at the same time. The NBG can connect to an existing network through another access point and also lets wireless clients connect to the network through it. This helps you expand wireless coverage when you have an access point or wireless router already in your network. In the example below, the NBG (A) is configured as a universal repeater. It has three clients that want to connect to the Internet. The NBG wirelessly connects to the available access point (B). Figure 46 Universal Repeater Mode A B After the NBG and the access point connect, the NBG acquires its IP address from the access point. The clients of the NBG can now surf the Internet. 9.2 What You Can Do Use the Status screen to view read-only information about your NBG (Section 9.5 on page 64). Use the AP Select screen to choose an access point that you want the NBG to connect to. You should know the security settings of the target AP (Section 9.6 on page 67). Use other Wireless LAN screens to configure the wireless settings and wireless security between the wireless clients and the NBG. Use the LAN screen to set the IP address for your NBG acting as an access point (Section 8.5 on page 61). 9.3 What You Need to Know With the exception of the Network > Wireless LAN 2.4G/5G > AP Select screens, other configuration screens in Universal Repeater Mode are similar to the ones in Access Point Mode. NBG6515 Users Guide 63 Chapter 9 Universal Repeater Mode See Chapter 11 on page 80 through switching the physical button which placed at the bottom of the NBG of this Users Guide. 9.4 Setting your NBG to Universal Repeater Mode 1 2 3 4 5 6 7 8 9 Connect your computer to the LAN port of the NBG. The default IP address of the NBG is 192.168.1.2. In this case, your computer must have an IP address in the range between 192.168.1.3 and 192.168.1.254. Click Start > Run on your computer in Windows. Type cmd in the dialog box. Enter ipconfig to show your computers IP address. If your computers IP address is not in the correct range then see Appendix C on page 251 for information on changing your computers IP address. After youve set your computers IP address, open a web browser such as Internet Explorer and type http://192.168.1.2 as the web address in your web browser. Enter 1234 (default) as the password and click Login. Type a new password and retype it to confirm, then click Apply. Otherwise, click Ignore. The Easy mode appears. Click Expert Mode in the navigation panel. To set your NBG to Universal Repeater Mode, switch the physical button which placed at the bottom of the NBG to the right side. You have to log in to the Web Configurator again when you change modes. As soon as you do, your NBG is already in Universal Repeater mode. The Web Configurator refreshes once the change to Universal Repeater mode is successful. 9.5 Universal Repeater Mode Status Screen Click to open the status screen. NBG6515 Users Guide 64 Chapter 9 Universal Repeater Mode Figure 47 Status: Universal Repeater Mode The following table describes the labels shown in the Status screen. Table 30 Status Screen: Universal Repeater Mode LABEL Device Information Host Name DESCRIPTION Firmware Version Sys OP Mode LAN Information

- MAC Address

- IP Address

- IP Subnet Mask

- DHCP WLAN 2.4G Information This is the System Name you enter in the Maintenance > General screen. It is for identification purposes. This is the firmware version and the date created. This is the device mode (Section 5.1.2 on page 36) to which the NBG is set - Universal Repeater Mode. This shows the LAN Ethernet adapter MAC Address of your device. This shows the LAN ports IP address. This shows the LAN ports subnet mask. This shows the LAN ports DHCP role - Client or None.

- MAC Address This shows the wireless adapter MAC Address of your device. NBG6515 Users Guide 65 Chapter 9 Universal Repeater Mode Table 30 Status Screen: Universal Repeater Mode (continued) LABEL

- SSID

- Channel

- Security

- To AP Connection

- To AP SSID Release_Configuration

- To AP Security WLAN 5G Information

- MAC Address

- SSID

- Channel

- Security

- To AP Connection

- To AP SSID Release_Configuration

- To AP Security Summary Packet Statistics WLAN Station Status System Status Item Data System Up Time Current Date/Time System Resource

- CPU Usage

- Memory Usage System Setting DESCRIPTION This shows a descriptive name used to identify the NBG in the wireless LAN. This shows the channel number which you select manually. This shows the level of wireless security the NBG is using. This shows the WLAN station status. If the NBG has successfully connected to an AP or wireless router, it displays Connected. Otherwise, it displays Disconnected. This shows the SSID of the AP or wireless router. This button is only available when the NBG has successfully connected to an AP or wireless router. Click this button to remove all configured wireless connections and wireless security settings on the NBG. This shows the security mode of the AP or wireless router is using. This shows the wireless adapter MAC Address of your device. This shows a descriptive name used to identify the NBG in the wireless LAN. This shows the channel number which you select manually. This shows the level of wireless security the NBG is using. This shows the WLAN station status. If the NBG has successfully connected to an AP or wireless router, it displays Connected. Otherwise, it displays Disconnected. This shows the SSID of the AP or wireless router. This button is only available when the NBG has successfully connected to an AP or wireless router. Click this button to remove all configured wireless connections and wireless security settings on the NBG. This shows the security mode of the AP or wireless router is using. Click Details... to go to the Monitor > Packet Statistics screen (Section 4.5 on page 33). Use this screen to view port status and packet specific statistics. Click Details... to go to the Monitor > WLAN Station Status screen (Section 4.7 on page 35). Use this screen to view the wireless stations that are currently associated to the NBG. This column shows the type of data the NBG is recording. This column shows the actual data recorded by the NBG. This is the total time the NBG has been on. This field displays your NBGs present date and time. This displays what percentage of the NBGs processing ability is currently used. When this percentage is close to 100%, the NBG is running at full load, and the throughput is not going to improve anymore. If you want some applications to have more throughput, you should turn off other applications (for example, using bandwidth management. This shows what percentage of the heap memory the NBG is using.

- Configuration Mode This shows the web configurator mode you are viewing - Expert. Interface Status Interface This displays the NBG port types. The port types are: LAN and WLAN. NBG6515 Users Guide 66 Chapter 9 Universal Repeater Mode Table 30 Status Screen: Universal Repeater Mode (continued) LABEL Status Rate DESCRIPTION For the LAN ports, this field displays Down (line is down) or Up (line is up or connected). For the WLAN, it displays Up when the WLAN is enabled or Down when the WLAN is disabled. For the LAN ports, this displays the port speed or N/A when the line is disconnected. For the WLAN, it displays the maximum transmission rate when the WLAN is enabled and N/

A when the WLAN is disabled. 9.5.1 Navigation Panel Use the menu in the navigation panel to configure NBG features in Universal Repeater Mode. Figure 48 Menu: Universal Repeater Mode Refer to Table 27 on page 54 for descriptions of the labels shown in the navigation panel. 9.6 AP Select Screen 9.6.1 Wireless LAN 2.4G Use this screen to choose an access point that you want the NBG to connect to. You should know the security settings of the target AP. To open this screen, click Network > Wireless LAN 2.4G > AP Select tab. NBG6515 Users Guide 67 Chapter 9 Universal Repeater Mode Figure 49 Network > Wireless LAN 2.4G > AP Select The following table describes the labels in this screen. Table 31 Network > Wireless LAN 2.4G > AP Select LABEL NO. Select SSID DESCRIPTION This is the index number of the APs. Use the radio button to select the wireless device to which you want to connect. This displays the Service Set IDentity of the wireless device. The SSID is a unique name that identifies a wireless network. All devices in a wireless network must use the same SSID. This displays the MAC address of the wireless device. This displays the channel number used by this wireless device. This displays which IEEE 802.11b/g/n wireless networking standards the wireless device supports. This displays the type of security configured on the wireless device. When No Security is shown, no security is configured and you can connect to it without a password. This displays the strength of the wireless signal. The signal strength mainly depends on the antenna output power and the distance between your NBG and this device. This shows the received signal strength indicator (RSSI), that is, the received signal strength in dBm. Select this to setup the AP manually. If Setup repeater manually is selected, use this field to type the SSID of the AP. This is useful when the APs SSID is hidden. Click WPS to start WPS-aware wireless station scanning and the wireless security information synchronization. Click this to search for available wireless devices within transmission range and update this table. Click this to continue. NBG6515 Users Guide 68 MAC Channel Mode Security Mode Strength RSSI Setup repeater manually SSID WPS Refresh Next Chapter 9 Universal Repeater Mode After you selected one of APs and click the Next button, the screen will display as below. Figure 50 Network > Wireless LAN 2.4G > AP Select: Connecting Success The following table describes the labels in this screen. Table 32 Network > Wireless LAN 2.4G > AP Select: Connecting Success LABEL Back Next DESCRIPTION Click this to return to the previous screen. Click this to continue. Figure 51 Network > Wireless LAN 2.4G > AP Select: Root AP SSID The following table describes the labels in this screen. Table 33 Network > Wireless LAN 2.4G > AP Select: Root AP SSID LABEL Root AP SSID Extenders SSID Security Back Apply DESCRIPTION This field displays the specific APs SSID which you used through the NBG. This field displays the SSID of the NBG as an extender. This field displays the specific APs security mode which you used through the NBG. Click this to return to the previous screen. Click Apply to save your changes to the NBG. 9.6.2 Wireless LAN 5G Use this screen to choose an access point that you want the NBG to connect to. You should know the security settings of the target AP. To open this screen, click Network > Wireless LAN 5G > AP Select tab. NBG6515 Users Guide 69 Chapter 9 Universal Repeater Mode Figure 52 Network > Wireless LAN 5G > AP Select The following table describes the labels in this screen. Table 34 Network > Wireless LAN 5G > AP Select LABEL NO. Select SSID MAC Channel Mode Security Mode Strength RSSI Setup repeater manually SSID WPS Refresh Next DESCRIPTION This is the index number of the APs. Use the radio button to select the wireless device to which you want to connect. This displays the Service Set IDentity of the wireless device. The SSID is a unique name that identifies a wireless network. All devices in a wireless network must use the same SSID. This displays the MAC address of the wireless device. This displays the channel number used by this wireless device. This displays which IEEE 802.11b/g/n wireless networking standards the wireless device supports. This displays the type of security configured on the wireless device. When No Security is shown, no security is configured and you can connect to it without a password. This displays the strength of the wireless signal. The signal strength mainly depends on the antenna output power and the distance between your NBG and this device. This shows the received signal strength indicator (RSSI), that is, the received signal strength in dBm. Select this to setup the AP manually. If Setup repeater manually is selected, use this field to type the SSID of the AP. This is useful when the APs SSID is hidden. Click WPS to start WPS-aware wireless station scanning and the wireless security information synchronization. Click this to search for available wireless devices within transmission range and update this table. Click this to continue. NBG6515 Users Guide 70 Chapter 9 Universal Repeater Mode After you selected one of APs and click the Next button, the screen will display as below. Figure 53 Network > Wireless LAN 5G > AP Select: Connecting Success The following table describes the labels in this screen. Table 35 Network > Wireless LAN 5G > AP Select: Connecting Success LABEL Back Next DESCRIPTION Click this to return to the previous screen. Click this to continue. Figure 54 Network > Wireless LAN 5G > AP Select: Root AP SSID The following table describes the labels in this screen. Table 36 Network > Wireless LAN 5G > AP Select: Root AP SSID LABEL Root AP SSID Extenders SSID Security Back Apply DESCRIPTION This field displays the specific APs SSID which you used through the NBG. This field displays the SSID of the NBG as an extender. This field displays the specific APs security mode which you used through the NBG. Click this to return to the previous screen. Click Apply to save your changes to the NBG. NBG6515 Users Guide 71 CHAPTER 10 Tutorials 10.1 Overview This chapter provides tutorials for your NBG as follows:

Connecting to the Internet from an Access Point Configuring Wireless Security Using WPS Enabling and Configuring Wireless Security (No WPS) If your connection is successful, open your Internet browser and enter http://www.zyxel.com or the URL of any other web site in the address bar. If you are able to access the web site, your wireless connection is successfully configured. 10.2 Connecting to the Internet from an Access Point This section gives you an example of how to set up an access point (AP) and wireless client (a notebook (B), in this example) for wireless communication. B can access the Internet through the access point wirelessly. Figure 55 Wireless Access Point Connection to the Internet 10.3 Configuring Wireless Security Using WPS This section gives you an example of how to set up wireless network using WPS. This example uses the NBG as the AP and NWD210N as the wireless client which connects to a notebook. Note: The wireless client must be a WPS-aware device (for example, a WPS USB adapter or PCI card). There are two WPS methods for creating a secure connection. This tutorial shows you how to do both. NBG6515 Users Guide 72 Chapter 10 Tutorials Push Button Configuration (PBC) - create a secure wireless network simply by pressing a button. See Section 10.3.1 on page 73.This is the easier method. PIN Configuration - create a secure wireless network simply by entering a wireless client's PIN

(Personal Identification Number) in the NBGs interface. See Section 10.3.2 on page 74. This is the more secure method, since one device can authenticate the other. 10.3.1 Push Button Configuration (PBC) 1 Make sure that your NBG is turned on and that it is within range of your computer. 2 Make sure that you have installed the wireless client (this example uses the NWD210N) driver and utility in your notebook. 3 4 In the wireless client utility, find the WPS settings. Enable WPS and press the WPS button (Start or WPS button) Log into NBGs Web Configurator and press the Push Button button in the Network > Wireless LAN 2.4G or Wireless LAN 5G > WPS Device screen. Note: Your NBG has a WPS button located on its panel, as well as a WPS button in its configuration utility. Both buttons have exactly the same function; you can use one or the other. Note: It doesnt matter which button is pressed first. You must press the second button within two minutes of pressing the first one. The NBG sends the proper configuration settings to the wireless client. This may take up to two minutes. Then the wireless client is able to communicate with the NBG securely. The following figure shows you an example to set up wireless network and security by pressing a button on both NBG and wireless client (the NWD210N in this example). NBG6515 Users Guide 73 Chapter 10 Tutorials Figure 56 Example WPS Process: PBC Method Wireless Client Router WITHIN 2 MINUTES SECURITY INFO COMMUNICATION 10.3.2 PIN Configuration When you use the PIN configuration method, you need to use both NBGs configuration interface and the clients utilities. 1 2 3 Launch your wireless clients configuration utility. Go to the WPS settings and select the PIN method to get a PIN number. Enter the PIN number to the PIN field in the Network > Wireless LAN 2.4G or Wireless LAN 5G > WPS Device screen on the NBG. Click Start button (or button next to the PIN field) on both the wireless client utility screen and the NBGs WPS Device screen within two minutes. The NBG authenticates the wireless client and sends the proper configuration settings to the wireless client. This may take up to two minutes. Then the wireless client is able to communicate with the NBG securely. The following figure shows you the example to set up wireless network and security on NBG and wireless client (ex. NWD210N in this example) by using PIN method. NBG6515 Users Guide 74 Chapter 10 Tutorials Figure 57 Example WPS Process: PIN Method Wireless Client Router WITHIN 2 MINUTES Authentication by PIN SECURITY INFO COMMUNICATION 10.4 Enabling and Configuring Wireless Security (No WPS) This example shows you how to configure wireless security settings with the following parameters on your NBG. NBG6515 Users Guide 75 Chapter 10 Tutorials SSID Channel Security SSID_Example3 6 WPA-PSK

(Pre-Shared Key: ThisismyWPA-PSKpre-sharedkey) Follow the steps below to configure the wireless settings on your NBG. The instructions require that your hardware is connected (see the Quick Start Guide) and you are logged into the Web Configurator through your LAN connection (see Section 3.2 on page 26). 1 Open the Wireless LAN 2.4G/5G > General screen in the APs Web Configurator. 2 3 Enable Wireless LAN. Enter SSID_Example3 as the SSID and select a channel. Set security mode to WPA-PSK and enter ThisismyWPA-PSKpre-sharedkey in the Pre-Shared Key field. Click Apply. Figure 58 Tutorial: Network > Wireless LAN 2.4G/5G > General 4 Open the Status screen. Verify your wireless and wireless security settings under Device Information and check if the WLAN connection is up under Interface Status. NBG6515 Users Guide 76 Chapter 10 Tutorials Figure 59 Tutorial: Checking Wireless Settings 10.4.1 Configure Your Notebook Note: We use the ZyXEL M-302 wireless adapter utility screens as an example for the wireless client. The screens may vary for different models. 1 The NBG supports IEEE 802.11b, IEEE 802.11g, IEEE 802.11n and IEEE 802.11ac wireless clients. Make sure that your notebook or computers wireless adapter supports one of these standards. 2 Wireless adapters come with software sometimes called a utility that you install on your computer. See your wireless adapters Users Guide for information on how to do that. 3 4 After youve installed the utility, open it. If you cannot see your utilitys icon on your screen, go to Start > Programs and click on your utility in the list of programs that appears. The utility displays a list of APs within range, as shown in the example screen below. Select SSID_Example3 and click Connect. Figure 60 Connecting a Wireless Client to a Wireless Network t 5 Select WPA-PSK and type the security key in the following screen. Click Next. NBG6515 Users Guide 77 Chapter 10 Tutorials Figure 61 Security Settings 6 The Confirm Save window appears. Check your settings and click Save to continue. Figure 62 Confirm Save 7 Check the status of your wireless connection in the screen below. If your wireless connection is weak or you have no connection, see the Troubleshooting section of this Users Guide. Figure 63 Link Status If your connection is successful, open your Internet browser and enter http://www.zyxel.com or the URL of any other web site in the address bar. If you are able to access the web site, your wireless connection is successfully configured. NBG6515 Users Guide 78 PART II Technical Reference 79 CHAPTER 11 Wireless LAN 11.1 Overview This chapter discusses how to configure the wireless network settings in your NBG. See the appendices for more detailed information about wireless networks. The following figure provides an example of a wireless network. Figure 64 Example of a Wireless Network Router A B 2.4G C 5G The wireless 2.4G network is the part in the blue circle and wireless 5G network is the part in the green circle. In these wireless networks, devices A, B and C are called wireless clients. The wireless clients use the access point (AP) to interact with other devices (such as the printer) or with the Internet. 11.2 What You Can Do Use the General screen (Section 11.4 on page 83) to enable the Wireless LAN, enter the SSID and select the wireless security mode. Use the MAC Filter screen (Section 11.6 on page 89) to allow or deny wireless stations based on their MAC addresses from connecting to the NBG. NBG6515 Users Guide 80 Chapter 11 Wireless LAN Use the Advanced screen (Section 11.7 on page 90) to allow wireless advanced features, such as intra-BSS networking and set the RTS/CTS Threshold. Use the QoS screen (Section 11.8 on page 91) to set priority levels to services, such as e-mail, VoIP, chat, and so on. Use the WPS screen (Section 11.9 on page 91) to quickly set up a wireless network with strong security, without having to configure security settings manually. Use the WPS Device screen (Section 11.10 on page 92) to add a wireless device using WPS. Use the Scheduling screen (Section 11.11 on page 93) to set the times your wireless LAN is turned on and off. Use the Guest WLAN screen (Section 11.12 on page 94) to configure multiple BSSs on the NBG. 11.3 What You Should Know Every wireless network must follow these basic guidelines. Every wireless client in the same wireless network must use the same SSID. The SSID is the name of the wireless network. It stands for Service Set IDentity. If two wireless networks overlap, they should use different channels. Like radio stations or television channels, each wireless network uses a specific channel, or frequency, to send and receive information. Every wireless client in the same wireless network must use security compatible with the AP. Security stops unauthorized devices from using the wireless network. It can also protect the information that is sent in the wireless network. 11.3.1 Wireless Security Overview The following sections introduce different types of wireless security you can set up in the wireless network. 11.3.1.1 SSID Normally, the AP acts like a beacon and regularly broadcasts the SSID in the area. You can hide the SSID instead, in which case the AP does not broadcast the SSID. In addition, you should change the default SSID to something that is difficult to guess. This type of security is fairly weak, however, because there are ways for unauthorized devices to get the SSID. In addition, unauthorized devices can still see the information that is sent in the wireless network. 11.3.1.2 MAC Address Filter Every wireless client has a unique identification number, called a MAC address.1 A MAC address is usually written using twelve hexadecimal characters2; for example, 00A0C5000002 or 1. Some wireless devices, such as scanners, can detect wireless networks but cannot use wireless networks. These kinds of wireless devices might not have MAC addresses. 2. Hexadecimal characters are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. NBG6515 Users Guide 81 Chapter 11 Wireless LAN 00:A0:C5:00:00:02. To get the MAC address for each wireless client, see the appropriate Users Guide or other documentation. You can use the MAC address filter to tell the AP which wireless clients are allowed or not allowed to use the wireless network. If a wireless client is allowed to use the wireless network, it still has to have the correct settings (SSID, channel, and security). If a wireless client is not allowed to use the wireless network, it does not matter if it has the correct settings. This type of security does not protect the information that is sent in the wireless network. Furthermore, there are ways for unauthorized devices to get the MAC address of an authorized wireless client. Then, they can use that MAC address to use the wireless network. 11.3.1.3 Encryption Wireless networks can use encryption to protect the information that is sent in the wireless network. Encryption is like a secret code. If you do not know the secret code, you cannot understand the message. The types of encryption you can choose depend on the type of user authentication. Table 37 Types of Encryption for Each Type of Authentication Weakest Strongest NO AUTHENTICATION No Security WEP WPA-PSK WPA2-PSK Usually, you should set up the strongest encryption that every wireless client in the wireless network supports. Suppose the wireless network has two wireless clients. Device A only supports WEP, and device B supports WEP and WPA-PSK. Therefore, you should set up WEP in the wireless network. Note: It is recommended that wireless networks use WPA-PSK or stronger encryption. IEEE 802.1x and WEP encryption are better than none at all, but it is still possible for unauthorized devices to figure out the original information pretty quickly. When you select WPA2-PSK in your NBG, you can also select an option (WPA Compatible) to support WPA as well. In this case, if some wireless clients support WPA and some support WPA2, you should set up WPA2-PSK (depending on the type of wireless network login) and select the WPA Compatible option in the NBG. Many types of encryption use a key to protect the information in the wireless network. The longer the key, the stronger the encryption. Every wireless client in the wireless network must have the same key. 11.3.1.4 WPS WiFi Protected Setup (WPS) is an industry standard specification, defined by the WiFi Alliance. WPS allows you to quickly set up a wireless network with strong security, without having to configure security settings manually. Depending on the devices in your network, you can either press a button (on the device itself, or in its configuration utility) or enter a PIN (Personal Identification Number) in the devices. Then, they connect and set up a secure network by themselves. See how to set up a secure wireless network using WPS in the Section 10.3 on page 72. NBG6515 Users Guide 82 Chapter 11 Wireless LAN 11.3.1.5 WDS Wireless Distribution System or WDS security is used between bridged APs. It is independent of the security between the wired networks and their respective APs. If you do not enable WDS security, traffic between APs is not encrypted. When WDS security is enabled, both APs must use the same pre-shared key. 11.4 General Wireless LAN 2.4G/5G General Screen Use this screen to enable the Wireless LAN 2.4G or 5G, enter the SSID and enable Guest WLAN. Note: If you are configuring the NBG from a computer connected to the wireless LAN and you change the NBGs SSID, channel or security settings, you will lose your wireless connection when you press Apply to confirm. You must then change the wireless settings of your computer to match the NBGs new settings. This screen varies depending on whether you chose Static WEP, WPA, WPA2, WPA-PSK or WPA2-PSK to add security on the selected wireless network. The wireless clients which want to associate to this network must have same wireless security settings as the NBG. No Security allows any client to connect to this network without authentication. If you enable the WPS function, only No Security, Static WEP, WPA-PSK and WPA2-PSK are available in this field. Click Network > Wireless LAN 2.4G or Wireless LAN 5G to open the General screen. Figure 65 Network > Wireless LAN 2.4G/5G > General NBG6515 Users Guide 83 Chapter 11 Wireless LAN The following table describes the general wireless LAN labels in this screen. Table 38 Network > Wireless LAN 2.4G/5G > General LABEL Wireless Setup Wireless LAN DESCRIPTION Select the radio button to Enable or Disable Wireless LAN. You can turn the wireless LAN on or off using the switch at the rear panel of the NBG.

(Service Set IDentity) The SSID identifies the Service Set with which a wireless station is associated. Wireless stations associating to the NBG must have the same SSID. Enter a descriptive name (up to 32 keyboard characters) for the wireless LAN. Select this check box to hide the SSID in the outgoing beacon frame so a station cannot obtain the SSID through scanning using a site survey tool. Set the operating frequency/channel depending on your particular region. Select a channel from the drop-down list box. The options vary depending on the frequency band and the country you are in. Refer to the Connection Wizard chapter for more information on channels. This option is only available if Auto Channel Selection is disabled. This displays the channel the NBG is currently using. Select 11b/g mixed mode to allow IEEE802.11b and IEEE802.11g compliant WLAN devices to associate with the NBG. Select 11b only to allow only IEEE 802.11b compliant WLAN devices to associate with the NBG. Select 11g only to allow only IEEE 802.11g compliant WLAN devices to associate with the NBG. Select 11n only to allow only IEEE 802.11n compliant WLAN devices to associate with the NBG. Select 11b/g/n mixed mode to allow IEEE802.11b, IEEE802.11g and IEEE802.11n compliant WLAN devices to associate with the NBG. Select 11a/n mixed mode to allow IEEE802.11a and IEEE802.11n compliant WLAN devices to associate with the NBG. Select 11a only to allow only IEEE 802.11a compliant WLAN devices to associate with the NBG. Select 11ac/a/n to allow only IEEE 802.11a, IEEE802.11an and IEEE802.11ac compliant WLAN devices to associate with the NBG. Select the channel bandwidth you want to use for your wireless network. It is recommended that you select 20/40 (20, 40, 20/40 MHz). Select 20 MHz if you want to lessen radio interference with other wireless devices in your neighborhood. This is set to Auto by default. If you select 20/40 as your Channel Bandwidth, the extension channel enables the NBG to get higher data throughput. This also lowers radio interference and traffic. Network Name

(SSID) Hide SSID Channel Selection Operating Channel Network Mode

(Wireless LAN 2.4G) Network Mode

(Wireless LAN 5G) Channel Bandwidth Extension Channel Security NBG6515 Users Guide 84 Chapter 11 Wireless LAN Table 38 Network > Wireless LAN 2.4G/5G > General (continued) LABEL Security Mode DESCRIPTION Select Static WEP, WPA-PSK, WPA2-PSK to add security on this wireless network. The wireless clients which want to associate to this network must have same wireless security settings as this device. After you select to use a security, additional options appears in this screen. Section 11.5 on page 85 for detailed information on different security modes. Or you can select No Security to allow any client to associate this network without authentication. Note: If the WPS function is enabled (default), only No Security and WPA2-PSK are available in this field. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Apply Reset See the rest of this chapter for information on the other labels in this screen. 11.5 General Wireless LAN 2.4G/5G Security Screen This screen varies depending on whether you chose Static WEP, WPA-PSK or WPA2-PSK to add security on the selected wireless network. The wireless clients which want to associate to this network must have same wireless security settings as the NBG. No Security allows any client to connect to this network without authentication. 11.5.1 No Security Select No Security to allow wireless stations to communicate with the access points without any data encryption. Note: If you do not enable any wireless security on your NBG, your network is accessible to any wireless networking device that is within range. Figure 66 Network > Wireless LAN 2.4G/5G > General: No Security NBG6515 Users Guide 85 Chapter 11 Wireless LAN The following table describes the labels in this screen. Table 39 Network > Wireless LAN 2.4G/5G > General: No Security LABEL Security Mode Apply Reset DESCRIPTION Choose No Security from the drop-down list box. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Refer to Table 38 on page 84 for descriptions of the other labels in this screen. 11.5.2 WEP Encryption WEP encryption scrambles the data transmitted between the wireless stations and the access points to keep network communications private. It encrypts unicast and multicast communications in a network. Both the wireless stations and the access points must use the same WEP key. Your NBG allows you to configure up to four 64-bit or 128-bit WEP keys but only one key can be enabled at any one time. In order to configure and enable WEP encryption, click Network > Wireless LAN 2.4G or Wireless LAN 5G to display the General screen. Select Static WEP from the Security Mode list. NBG6515 Users Guide 86 Chapter 11 Wireless LAN Figure 67 Network > Wireless LAN 2.4G/5G > General: Static WEP The following table describes the wireless LAN security labels in this screen. Table 40 Network > Wireless LAN 2.4G/5G > General: Static WEP LABEL Security Mode PassPhrase DESCRIPTION Select Static WEP to enable data encryption. Enter a Passphrase (up to 26 printable characters) and click Generate. A passphrase functions like a password. In WEP security mode, it is further converted by the NBG into a complicated string that is referred to as the key. This key is requested from all devices wishing to connect to a wireless network. WEP Encryption Select 64-bit WEP or 128-bit WEP. Authentication Method This dictates the length of the security key that the network is going to use. Select Auto or Shared Key from the drop-down list box. This field specifies whether the wireless clients have to provide the WEP key to login to the wireless client. Keep this setting at Auto unless you want to force a key verification before communication between the wireless client and the NBG occurs. ASCII Hex Select Shared Key to force the clients to provide the WEP key prior to communication. Select this option in order to enter ASCII characters as WEP key. Select this option in order to enter hexadecimal characters as a WEP key. The preceding "0x", that identifies a hexadecimal key, is entered automatically. NBG6515 Users Guide 87 Chapter 11 Wireless LAN Table 40 Network > Wireless LAN 2.4G/5G > General: Static WEP (continued) LABEL Key 1 to Key 4 DESCRIPTION The WEP keys are used to encrypt data. Both the NBG and the wireless stations must use the same WEP key for data transmission. If you chose 64-bit WEP, then enter any 5 ASCII characters or 10 hexadecimal characters

("0-9", "A-F"). If you chose 128-bit WEP, then enter 13 ASCII characters or 26 hexadecimal characters

("0-9", "A-F"). Apply Reset You must configure at least one key, only one key can be activated at any one time. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Refer to Table 38 on page 84 for descriptions of the other labels in this screen. 11.5.3 WPA-PSK/WPA2-PSK Click Network > Wireless LAN 2.4G or Wireless LAN 5G to display the General screen. Select WPA-PSK or WPA2-PSK from the Security Mode list. Figure 68 Network > Wireless LAN 2.4G/5G> General: WPA-PSK/WPA2-PSK The following table describes the labels in this screen. Table 41 Network > Wireless LAN 2.4G/5G > General: WPA-PSK/WPA2-PSK LABEL Security Mode WPA Compatible DESCRIPTION Select WPA-PSK or WPA2-PSK to enable data encryption. This field appears when you choose WPA-PSK2 as the Security Mode. Check this field to allow wireless devices using WPA-PSK security mode to connect to your NBG. Pre-Shared Key WPA-PSK/WPA2-PSK uses a simple common password for authentication. Type a pre-shared key from 8 to 63 case-sensitive keyboard characters. NBG6515 Users Guide 88 Chapter 11 Wireless LAN Table 41 Network > Wireless LAN 2.4G/5G > General: WPA-PSK/WPA2-PSK (continued) LABEL Group Key Update Timer Apply Reset DESCRIPTION The Group Key Update Timer is the rate at which the AP sends a new group key out to all clients. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Refer to Table 38 on page 84 for descriptions of the other labels in this screen. 11.6 MAC Filter The MAC filter screen allows you to configure the NBG to give exclusive access to devices (Allow) or exclude devices from accessing the NBG (Deny). Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address is assigned at the factory and consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02. You need to know the MAC address of the devices to configure this screen. To change your NBGs MAC filter settings, click Network > Wireless LAN 2.4G or Wireless LAN 5G > MAC Filter. The screen appears as shown. Figure 69 Network > Wireless LAN 2.4G/5G > MAC Filter The following table describes the labels in this menu. Table 42 Network > Wireless LAN 2.4G/5G > MAC Filter LABEL Access Policy Policy DESCRIPTION Define the filter action for the list of MAC addresses in the MAC Address table. Select Allow to permit access to the NBG, MAC addresses not listed will be denied access to the NBG. Select Disable to block access to the NBG, MAC addresses not listed will be allowed to access the NBG Enter the MAC addresses of the wireless station that are allowed or denied access to the NBG in these address fields. Enter the MAC addresses in a valid MAC address format, that is, six hexadecimal character pairs, for example, 12:34:56:78:9a:bc. Click Add. Add a station Mac Address MAC Filter Summary Delete Click the delete icon to remove the MAC address from the list. NBG6515 Users Guide 89 Chapter 11 Wireless LAN Table 42 Network > Wireless LAN 2.4G/5G > MAC Filter (continued) LABEL MAC Address DESCRIPTION This is the MAC address of the wireless station that are allowed or denied access to the NBG. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Apply Reset 11.7 Wireless LAN Advanced Screen Use this screen to allow wireless advanced features, such as intra-BSS networking and set the RTS/CTS Threshold Click Network > Wireless LAN 2.4G or Wireless LAN 5G > Advanced. The screen appears as shown. Figure 70 Network > Wireless LAN 2.4G/5G > Advanced The following table describes the labels in this screen. DESCRIPTION Table 43 Network > Wireless LAN 2.4G/5G > Advanced LABEL Wireless Advanced Setup RTS/CTS Threshold Fragmentation Threshold Enable Intra-

BSS Traffic Blocking Data with its frame size larger than this value will perform the RTS (Request To Send)/CTS

(Clear To Send) handshake. The threshold (number of bytes) for the fragmentation boundary for directed messages. It is the maximum data fragment size that can be sent. Enter an even number. A Basic Service Set (BSS) exists when all communications between wireless clients or between a wireless client and a wired network client go through one access point (AP). Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is enabled, wireless client A and B can access the wired network and communicate with each other. When Intra-BSS is disabled, wireless client A and B can still access the wired network but cannot communicate with each other. Set the output power of the NBG in this field. If there is a high density of APs in an area, decrease the output power of the NBG to reduce interference with other APs. Select one of the following 100%, 90%, 75%, 50%, 25%, 10% or Minimum. See the product specifications for more information on your NBGs output power. Output Power HT (High Throughput) Physical Mode - Use the fields below to configure the 802.11 wireless environment of your NBG. NBG6515 Users Guide 90 Chapter 11 Wireless LAN Table 43 Network > Wireless LAN 2.4G/5G > Advanced (continued) LABEL Guard Interval DESCRIPTION Select Auto to increase data throughput. However, this may make data transfer more prone to errors. Select Long to prioritize data integrity. This may be because your wireless network is busy and congested or the NBG is located in an environment prone to radio interference. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Apply Reset 11.8 Quality of Service (QoS) Screen The QoS screen allows you to automatically give a service (such as VoIP and video) a priority level. Click Network > Wireless LAN 2.4G or Wireless LAN 5G > QoS. The following screen appears. Figure 71 Network > Wireless LAN 2.4G/5G > QoS The following table describes the labels in this screen. Table 44 Network > Wireless LAN 2.4G/5G > QoS LABEL Enable WMM QoS DESCRIPTION Check this to have the NBG automatically give a service a priority level according to the ToS value in the IP header of packets it sends. WMM QoS (Wifi MultiMedia Quality of Service) gives high priority to voice and video, which makes them run more smoothly. Click Apply to save your changes to the NBG. Click Reset to begin configuring this screen afresh. Apply Reset 11.9 WPS Screen Use this screen to enable/disable WPS, view or generate a new PIN number and check current WPS status. To open this screen, click Network > Wireless LAN 2.4G or Wireless LAN 5G > WPS tab. NBG6515 Users Guide 91 Chapter 11 Wireless LAN Figure 72 Network > Wireless LAN 2.4G/5G > WPS The following table describes the labels in this screen. DESCRIPTION Table 45 Network > Wireless LAN 2.4G/5G > WPS LABEL WPS Setup Enable WPS Enable PIN PIN Number Select this to enable the WPS feature. Select this to enable the WPS feature. This displays a PIN number last time system generated. Click Generate to generate a new PIN number. WPS Status Status Release Configuration 802.11 Mode SSID Security Apply Reset This displays Configured when the NBG has connected to a wireless network using WPS or when Enable WPS is selected and wireless or wireless security settings have been changed. The current wireless and wireless security settings also appear in the screen. This displays Unconfigured if WPS is disabled and there are no wireless or wireless security changes on the NBG or you click Release_Configuration to remove the configured wireless and wireless security settings. This button is only available when the WPS status displays Configured. Click this button to remove all configured wireless and wireless security settings for WPS connections on the NBG. This is the 802.11 mode used. Only compliant WLAN devices can associate with the NBG. This is the name of the wireless network. This is the type of wireless security employed by the network. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. 11.10 WPS Device Screen Use this screen when you want to add a wireless station using WPS. To open this screen, click Network > Wireless LAN 2.4G or Wireless LAN 5G > WPS Station tab. NBG6515 Users Guide 92 Chapter 11 Wireless LAN Note: Note: After you click Push Button on this screen, you have to press a similar button in the wireless station utility within 2 minutes. To add the second wireless station, you have to press these buttons on both device and the wireless station again after the first 2 minutes. Figure 73 Network > Wireless LAN 2.4G/5G > WPS Device The following table describes the labels in this screen. Table 46 Network > Wireless LAN 2.4G/5G > WPS Station LABEL WPS DESCRIPTION Use this button when you use the PBC (Push Button Configuration) method to configure wireless stationss wireless settings. See Section 10.3.1 on page 73. Or input your devices PIN number Click this to start WPS-aware wireless station scanning and the wireless security information synchronization. Use this button when you use the PIN Configuration method to configure wireless stations wireless settings. See Section 10.3.2 on page 74. Type the same PIN number generated in the wireless stations utility. Then click Go to associate to each other and perform the wireless security information synchronization. 11.11 Scheduling Screen Use this screen to set the times your wireless LAN is turned on and off. Wireless LAN scheduling is disabled by default. The wireless LAN can be scheduled to turn on or off on certain days and at certain times. To open this screen, click Network > Wireless LAN 2.4G or Wireless LAN 5G >

Scheduling tab. NBG6515 Users Guide 93 Chapter 11 Wireless LAN Figure 74 Network > Wireless LAN 2.4G/5G > Scheduling The following table describes the labels in this screen. DESCRIPTION Table 47 Network > Wireless LAN 2.4G/5G > Scheduling LABEL Wireless LAN Scheduling Enable Wireless LAN Scheduling Scheduling WLAN Status Select this to enable Wireless LAN scheduling. Select On or Off to specify whether the Wireless LAN is turned on or off. This field works in conjunction with the Day and For the following times fields. Select Everyday or the specific days to turn the Wireless LAN on or off. If you select Everyday you can not select any specific days. This field works in conjunction with the For the following times field. Select a begin time using the first set of hour and minute (min) drop down boxes and select an end time using the second set of hour and minute (min) drop down boxes. If you have chosen On earlier for the WLAN Status the Wireless LAN will turn on between the two times you enter in these fields. If you have chosen Off earlier for the WLAN Status the Wireless LAN will turn off between the two times you enter in these fields. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Day For the following times

(24-Hour Format) Apply Reset 11.12 Guest WLAN Screen This screen allows you to enable and configure multiple wireless networks and guest wireless network settings on the NBG. You can configure up to four SSIDs to enable multiple BSSs (Basic Service Sets) on the NBG. This allows you to use one access point to provide several BSSs simultaneously. You can then assign varying security types to different SSIDs. Wireless clients can use different SSIDs to associate with the same access point. NBG6515 Users Guide 94 Chapter 11 Wireless LAN Click Network > Wireless LAN 2.4G/5G > Guest WLAN. The following screen displays. Figure 75 Network > Wireless LAN 2.4G/5G > Guest WLAN The following table describes the labels in this screen. DESCRIPTION Table 48 Network > Wireless LAN 2.4G > Guest WLAN LABEL Guest WLAN Setup Guest WLAN Network Name(SSID) Hide SSID Guest IP Address Guest Subnet Mask Guest Start IP Guest End IP Security Security Mode Select Enable to activate the guest wireless LAN. Select Disable to turn it off. The SSID (Service Set IDentity) identifies the Service Set with which a wireless client is associated. Enter a descriptive name (up to 32 printable characters found on a typical English language keyboard) for the wireless LAN. Select this check box to hide the SSID in the outgoing beacon frame so a station cannot obtain the SSID through scanning using a site survey tool. Type an IP address for the devices on the Guest WLAN using this as the gateway IP address. Type the subnet mask for the guest wireless LAN. This field displays the first IP address of guest wireless LAN. This field displays the last IP address of guest wireless LAN. Select Static WEP, WPA-PSK, WPA2-PSK to add security on this wireless network. The wireless clients which want to associate to this network must have same wireless security settings as this device. After you select to use a security, additional options appears in this screen. Section 11.5 on page 85 for detailed information on different security modes. Or you can select No Security to allow any client to associate this network without authentication. Note: If the WPS function is enabled (default), only No Security and WPA2-PSK are available in this field. Click Apply to save your changes to NBG. Click Reset to begin configuring this screen afresh. Apply Reset NBG6515 Users Guide 95 CHAPTER 12 IPv6 12.1 IPv6 Overview IPv6 (Internet Protocol version 6), is designed to enhance IP address size and features. The increase in IPv6 address size to 128 bits (from the 32-bit IPv4 address) allows up to 3.4 x 1038 IP addresses. Use the IPv6 screens to configure the IP address for your NBG on the LAN or on the WAN. 12.1.1 What You Can Do in this Chapter Use the General screen (Section 12.2 on page 98) to configure the IPv6 connection type. 12.1.2 What You Need to Know IPv6 Addressing An 128-bit IPv6 address is written as eight 16-bit hexadecimal blocks separated by colons (:). This is an example IPv6 address 2001:0db8:1a2b:0015:0000:0000:1a2f:0000. IPv6 addresses can be abbreviated in two ways:

Leading zeros in a block can be omitted. So 2001:0db8:1a2b:0015:0000:0000:1a2f:0000 can be written as 2001:db8:1a2b:15:0:0:1a2f:0. Any number of consecutive blocks of zeros can be replaced by a double colon. A double colon can only appear once in an IPv6 address. So 2001:0db8:0000:0000:1a2f:0000:0000:0015 can be written as 2001:0db8::1a2f:0000:0000:0015, 2001:0db8:0000:0000:1a2f::0015, 2001:db8::1a2f:0:0:15 or 2001:db8:0:0:1a2f::15. Prefix and Prefix Length Similar to an IPv4 subnet mask, IPv6 uses an address prefix to represent the network address. An IPv6 prefix length specifies how many most significant bits (start from the left) in the address compose the network address. The prefix length is written as /x where x is a number. For example, 2001:db8:1a2b:15::1a2f:0/32 means that the first 32 bits (2001:db8) from the left is the network prefix. NBG6515 Users Guide 96 Chapter 12 IPv6 Link-local Address A link-local address uniquely identifies a device on the local network (the LAN). It is similar to a private IP address in IPv4. You can have the same link-local address on multiple interfaces on a device. A link-local unicast address has a predefined prefix of fe80::/10. The link-local unicast address format is as follows. Table 49 Link-local Unicast Address Format Interface ID 1111 1110 10 10 bits 64 bits 0 54 bits Subnet Masking Both an IPv6 address and IPv6 subnet mask compose of 128-bit binary digits, which are divided into eight 16-bit blocks and written in hexadecimal notation. Hexadecimal uses four bits for each character (1 ~ 10, A ~ F). Each blocks 16 bits are then represented by four hexadecimal characters. For example, FFFF:FFFF:FFFF:FFFF:FC00:0000:0000:0000. Stateless Autoconfiguration With stateless autoconfiguration in IPv6, addresses can be uniquely and automatically generated. Unlike DHCPv6 (Dynamic Host Configuration Protocol version six) which is used in IPv6 stateful autoconfiguration, the owner and status of addresses dont need to be maintained by a DHCP server. Every IPv6 device is able to generate its own and unique IP address automatically when IPv6 is initiated on its interface. It combines the prefix and the interface ID (generated from its own Ethernet MAC address) to form a complete IPv6 address. When IPv6 is enabled on a device, its interface automatically generates a link-local address

(beginning with fe80). When the NBGs WAN interface is connected to an ISP with a router and the NBG is set to automatically obtain an IPv6 network prefix from the router for the interface, it generates another address which combines its interface ID and global and subnet information advertised from the router. (In IPv6, all network interfaces can be associated with several addresses.) This is a routable global IP address. Prefix Delegation Prefix delegation enables an IPv6 router (the NBG) to use the IPv6 prefix (network address) received from the ISP (or a connected uplink router) for its LAN. The NBG uses the received IPv6 prefix (for example, 2001:db2::/48) to generate its LAN IP address. Through sending Router Advertisements (RAs) regularly by multicast, the router passes the IPv6 prefix information to its LAN hosts. The hosts then can use the prefix to generate their IPv6 addresses. IPv6 Router Advertisement An IPv6 router sends router advertisement messages periodically to advertise its presence and other parameters to the hosts in the same network. NBG6515 Users Guide 97 Chapter 12 IPv6 DHCPv6 The Dynamic Host Configuration Protocol for IPv6 (DHCPv6, RFC 3315) is a server-client protocol that allows a DHCP server to assign and pass IPv6 network addresses, prefixes and other configuration information to DHCP clients. DHCPv6 servers and clients exchange DHCP messages using UDP. Each DHCP client and server has a unique DHCP Unique IDentifier (DUID), which is used for identification when they are exchanging DHCPv6 messages. The DUID is generated from the MAC address, time, vendor assigned ID and/or the vendor's private enterprise number registered with the IANA. It should not change over time even after you reboot the device. 12.2 General Screen Use this screen to configure the IP address for your NBG. Click Network > IPv6 > General. Figure 76 Network > IPv6 > General NBG6515 Users Guide 98 Chapter 12 IPv6 The following table describes the labels in this screen. DESCRIPTION Table 50 Network > IPv6 > General LABEL IPv6 Connection Type Setup IPv6 Connection Type Select Link Local Only to use the link-local address which uniquely identifies a device on the local network (the LAN). Select Static IPv6 if you have a fixed IPv6 address assigned by your ISP. Select DHCPv6 if you want to obtain an IPv6 address from a DHCPv6 server. WAN IPv6 Address Setup This is available only when you select Static IPv6 in the IPv6 Connection Type field. IPv6 Address Subnet Prefix Length Gateway IP Address Enter the IPv6 address on the WAN side in this field. Enter the address prefix length to specify how many most significant bits in an IPv6 address compose the network address. Enter the IPv6 address of the next-hop gateway. The gateway is a router or switch on the same segment as your NBG's interface(s). The gateway helps forward packets to their destinations. Specify the DNS server IPv6 address assigned by the ISP. First DNS Server Second DNS Server IPv6 DNS Setup This is available only when you select DHCPv6 in the IPv6 Connection Type field. DNS Setup Select From ISP to have the NBG get the IPv6 DNS server addresses from the ISP automatically. Select User-Defined to have the NBG use the IPv6 DNS server addresses you configure manually. Enter the first IPv6 DNS server address assigned by the ISP. Enter the second IPv6 DNS server address assigned by the ISP. Select this option to use DHCPv6 prefix delegation. The NBG will obtain an IPv6 prefix from the ISP or a connected uplink router for the LAN. Enter the IPv6 address for the NBG on the LAN. This displays the IPv6 link-local address on the NBG interfaces in the LAN. First DNS Server Second DNS Server LAN IPv6 Address Setup Enable DHCP-

PD LAN IPv6 Address LAN IPv6 Link-

local Address Address Auto configuration Setup This is not available when you select Link Local Only in the IPv6 Connection Type field. Enable Address Auto configuration Select this option if you want the devices on your local area network to obtain network address that are not managed by a DHCPv6 server. NBG6515 Users Guide 99 Chapter 12 IPv6 Table 50 Network > IPv6 > General (continued) LABEL Type DESCRIPTION Select SLAAC + RDNSS to enable IPv6 stateless auto-configuration on this interface. The interface will generate an IPv6 IP address itself from a prefix obtained from an IPv6 router in the network. Select SLAAC + Stateless DHCPv6 to enable IPv6 stateless auto-configuration on this interface. The interface will get an IPv6 address from an IPv6 router and the DHCP server. The IP address information gets through DHCPv6. Select Stateful to allow a DHCP server to assign and pass IPv6 network addresses, prefixes and other configuration information to DHCP clients. Specify how long (in minutes) the IPv6 addresses remain valid. If you select Stateful in the Type field, specify the range of IPv6 addresses from which the DHCPv6 server assigns to the clients. Enter the smallest value of the last block of the IPv6 addresses which are to be allocated. If you select Stateful in the Type field, specify the range of IPv6 addresses from which the DHCPv6 server assigns to the clients. Enter the largest value of the last block of the IPv6 addresses which are to be allocated. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Router Advertisement Lifetime Address (start) Address (end) Apply Reset NBG6515 Users Guide 100 CHAPTER 13 WAN 13.1 Overview This chapter discusses the NBGs WAN screens. Use these screens to configure your NBG for Internet access. A WAN (Wide Area Network) connection is an outside connection to another network or the Internet. It connects your private networks such as a LAN (Local Area Network) and other networks, so that a computer in one location can communicate with computers in other locations. Figure 77 LAN and WAN Router 13.2 What You Can Do Use the Internet Connection screen (Section 13.4 on page 103) to enter your ISP information and set how the computer acquires its IP, DNS and WAN MAC addresses. Use the Advanced screen (Section 13.5 on page 109) to enable multicasting, configure Windows networking and bridge. 13.3 What You Need To Know The information in this section can help you configure the screens for your WAN connection, as well as enable/disable some advanced features of your NBG. NBG6515 Users Guide 101 Chapter 13 WAN 13.3.1 Configuring Your Internet Connection Encapsulation Method Encapsulation is used to include data from an upper layer protocol into a lower layer protocol. To set up a WAN connection to the Internet, you need to use the same encapsulation method used by your ISP (Internet Service Provider). If your ISP offers a dial-up Internet connection using PPPoE (PPP over Ethernet) or PPTP (Point-to-Point Tunneling Protocol), they should also provide a username and password (and service name) for user authentication. WAN IP Address The WAN IP address is an IP address for the NBG, which makes it accessible from an outside network. It is used by the NBG to communicate with other devices in other networks. It can be static (fixed) or dynamically assigned by the ISP each time the NBG tries to access the Internet. If your ISP assigns you a static WAN IP address, they should also assign you the subnet mask and DNS server IP address(es) (and a gateway IP address if you use the Ethernet or ENET ENCAP encapsulation method). DNS Server Address Assignment Use Domain Name System (DNS) to map a domain name to its corresponding IP address and vice versa, for instance, the IP address of www.zyxel.com is 204.217.0.2. The DNS server is extremely important because without it, you must know the IP address of a computer before you can access it. The NBG can get the DNS server addresses in the following ways. 1 2 The ISP tells you the DNS server addresses, usually in the form of an information sheet, when you sign up. If your ISP gives you DNS server addresses, manually enter them in the DNS server fields. If your ISP dynamically assigns the DNS server IP addresses (along with the NBGs WAN IP address), set the DNS server fields to get the DNS server address from the ISP. WAN MAC Address The MAC address screen allows users to configure the WAN port's MAC address by either using the factory default or cloning the MAC address from a computer on your LAN. Choose Factory Default to select the factory assigned default MAC Address. Otherwise, click Clone the computer's MAC address - IP Address and enter the IP address of the computer on the LAN whose MAC you are cloning. Once it is successfully configured, the address will be copied to configuration file. It is recommended that you clone the MAC address prior to hooking up the WAN Port. NBG6515 Users Guide 102 Chapter 13 WAN 13.3.2 Multicast Traditionally, IP packets are transmitted in one of either two ways - Unicast (1 sender - 1 recipient) or Broadcast (1 sender - everybody on the network). Multicast delivers IP packets to a group of hosts on the network - not everybody and not just 1. Figure 78 Multicast Example Router In the multicast example above, systems A and D comprise one multicast group. In multicasting, the server only needs to send one data stream and this is delivered to systems A and D. IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to establish membership in a multicast group - it is not used to carry user data. The NBG supports both IGMP version 1

(IGMP-v1) and IGMP version 2 (IGMP-v2). At start up, the NBG queries all directly connected networks to gather group membership. After that, the NBG periodically updates this information. IP multicasting can be enabled/disabled on the NBG LAN and/or WAN interfaces in the Web Configurator (LAN; WAN). Select None to disable IP multicasting on these interfaces. 13.4 Internet Connection Use this screen to change your NBGs Internet access settings. Click WAN from the Configuration menu. The screen differs according to the encapsulation you choose. 13.4.1 Ethernet Encapsulation This screen displays when you select Ethernet encapsulation. NBG6515 Users Guide 103 Chapter 13 WAN Figure 79 Network > WAN > Internet Connection: Ethernet Encapsulation The following table describes the labels in this screen. DESCRIPTION Table 51 Network > WAN > Internet Connection: Ethernet Encapsulation LABEL ISP Parameters for Internet Access Encapsulation WAN IP Address Assignment Get automatically from ISP

(Default) Use Fixed IP Address Select this option If the ISP assigned a fixed IP address. You must choose the Ethernet option when the WAN port is used as a regular Ethernet. Select this option If your ISP did not assign you a fixed IP address. This is the default selection. IP Address IP Subnet Mask Gateway IP Address Enter your WAN IP address in this field if you selected Use Fixed IP Address. Enter the IP Subnet Mask in this field. Enter a Gateway IP Address (if your ISP gave you one) in this field. MTU Size Enter the Maximum Transmission Unit (MTU) or the largest packet size per frame that your NBG can receive and process. WAN DNS Assignment NBG6515 Users Guide 104 Chapter 13 WAN Table 51 Network > WAN > Internet Connection: Ethernet Encapsulation (continued) LABEL First DNS Server DESCRIPTION Select From ISP if your ISP dynamically assigns DNS server information (and the NBG's WAN IP address). The field to the right displays the (read-only) DNS server IP address that the ISP assigns. Second DNS Server WAN MAC Address Factory default Clone the computers MAC address -

IP Address Set WAN MAC Address Apply Reset Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's IP address in the field to the right. If you chose User-Defined, but leave the IP address set to 0.0.0.0, User-Defined changes to None after you click Apply. If you set a second choice to User-Defined, and enter the same IP address, the second User-Defined changes to None after you click Apply. Select None if you do not want to configure DNS servers. If you do not configure a DNS server, you must know the IP address of a computer in order to access it. The MAC address section allows users to configure the WAN port's MAC address by either using the NBGs MAC address, copying the MAC address from a computer on your LAN or manually entering a MAC address. Select Factory default to use the factory assigned default MAC Address. Select Clone the computer's MAC address - IP Address and enter the IP address of the computer on the LAN whose MAC you are cloning. Select this option and enter the MAC address you want to use. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. 13.4.2 PPPoE Encapsulation The NBG supports PPPoE (Point-to-Point Protocol over Ethernet). PPPoE is an IETF standard (RFC 2516) specifying how a personal computer (PC) interacts with a broadband modem (DSL, cable, wireless, etc.) connection. The PPP over Ethernet option is for a dial-up connection using PPPoE. For the service provider, PPPoE offers an access and authentication method that works with existing access control systems (for example Radius). One of the benefits of PPPoE is the ability to let you access one of multiple network services, a function known as dynamic service selection. This enables the service provider to easily create and offer new IP services for individuals. Operationally, PPPoE saves significant effort for both you and the ISP or carrier, as it requires no specific configuration of the broadband modem at the customer site. By implementing PPPoE directly on the NBG (rather than individual computers), the computers on the LAN do not need PPPoE software installed, since the NBG does that part of the task. Furthermore, with NAT, all of the LANs computers will have access. NBG6515 Users Guide 105 Chapter 13 WAN This screen displays when you select PPPoE encapsulation. Figure 80 Network > WAN > Internet Connection: PPPoE Encapsulation The following table describes the labels in this screen. Select PPP over Ethernet if you connect to your Internet via dial-up. Table 52 Network > WAN > Internet Connection: PPPoE Encapsulation DESCRIPTION LABEL ISP Parameters for Internet Access Encapsulation Service Name User Name Password Retype to Confirm MTU Size Type the user name given to you by your ISP. Type the password associated with the user name above. Type your password again to make sure that you have entered is correctly. Enter the Maximum Transmission Unit (MTU) or the largest packet size per frame that your NBG can receive and process. Select Nailed-Up Connection if you do not want the connection to time out. This value specifies the time in minutes that elapses before the router automatically disconnects from the PPPoE server. Nailed-Up Connection Idle Timeout

(min) WAN DNS Assignment NBG6515 Users Guide 106 Chapter 13 WAN Table 52 Network > WAN > Internet Connection: PPPoE Encapsulation (continued) LABEL First DNS Server DESCRIPTION Select From ISP if your ISP dynamically assigns DNS server information (and the NBG's WAN IP address). The field to the right displays the (read-only) DNS server IP address that the ISP assigns. Second DNS Server WAN MAC Address Factory default Clone the computers MAC address - IP Address Set WAN MAC Address Apply Reset Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's IP address in the field to the right. If you chose User-Defined, but leave the IP address set to 0.0.0.0, User-Defined changes to None after you click Apply. If you set a second choice to User-Defined, and enter the same IP address, the second User-Defined changes to None after you click Apply. Select None if you do not want to configure DNS servers. If you do not configure a DNS server, you must know the IP address of a computer in order to access it. The MAC address section allows users to configure the WAN port's MAC address by using the NBGs MAC address, copying the MAC address from a computer on your LAN or manually entering a MAC address. Select Factory default to use the factory assigned default MAC Address. Select Clone the computer's MAC address - IP Address and enter the IP address of the computer on the LAN whose MAC you are cloning. Select this option and enter the MAC address you want to use. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. 13.4.3 PPTP Encapsulation Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables secure transfer of data from a remote client to a private server, creating a Virtual Private Network (VPN) using TCP/IP-

based networks. PPTP supports on-demand, multi-protocol and virtual private networking over public networks, such as the Internet. Note: PPTP will be supported in the next firmware version. NBG6515 Users Guide 107 Chapter 13 WAN This screen displays when you select PPTP encapsulation. Figure 81 Network > WAN > Internet Connection: PPTP Encapsulation The following table describes the labels in this screen. Table 53 Network > WAN > Internet Connection: PPTP Encapsulation LABEL ISP Parameters for Internet Access Encapsulation DESCRIPTION User Name Password Retype to Confirm Nailed-up Connection To configure a PPTP client, you must configure the User Name and Password fields for a PPP connection and the PPTP parameters for a PPTP connection. Type the user name given to you by your ISP. Type the password associated with the User Name above. Type your password again to make sure that you have entered is correctly. Select Nailed-Up Connection if you do not want the connection to time out. NBG6515 Users Guide 108 Chapter 13 WAN DESCRIPTION This value specifies the time in minutes that elapses before the NBG automatically disconnects from the PPTP server. Table 53 Network > WAN > Internet Connection: PPTP Encapsulation (continued) LABEL Idle Timeout

(min) PPTP Configuration Server IP Address Get automatically from ISP Use Fixed IP Address Select this option If your ISP did not assign you a fixed IP address. This is the default selection. Select this option If the ISP assigned a fixed IP address. Type the IP address of the PPTP server. IP Address IP Subnet Mask Gateway IP Address MTU Size Enter your WAN IP address in this field if you selected Use Fixed IP Address. Your NBG will automatically calculate the subnet mask based on the IP address that you assign. Unless you are implementing subnetting, use the subnet mask computed by the NBG. Enter a Gateway IP Address (if your ISP gave you one) in this field. Enter the Maximum Transmission Unit (MTU) or the largest packet size per frame that your NBG can receive and process. WAN DNS Assignment First DNS Server Select From ISP if your ISP dynamically assigns DNS server information (and the NBG's WAN IP address). The field to the right displays the (read-only) DNS server IP address that the ISP assigns. Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's IP address in the field to the right. If you chose User-Defined, but leave the IP address set to 0.0.0.0, User-Defined changes to None after you click Apply. If you set a second choice to User-Defined, and enter the same IP address, the second User-Defined changes to None after you click Apply. Select None if you do not want to configure DNS servers. If you do not configure a DNS server, you must know the IP address of a computer in order to access it. The MAC address section allows users to configure the WAN port's MAC address by either using the NBGs MAC address, copying the MAC address from a computer on your LAN or manually entering a MAC address. Select Factory default to use the factory assigned default MAC Address. Select Clone the computer's MAC address - IP Address and enter the IP address of the computer on the LAN whose MAC you are cloning. Select this option and enter the MAC address you want to use. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Second DNS Server WAN MAC Address Factory default Clone the computers MAC address -

IP Address Set WAN MAC Address Apply Reset 13.5 Advanced WAN Screen Use this screen to enable Multicast. Note: The categories shown in this screen are independent of each other. NBG6515 Users Guide 109 Chapter 13 WAN To change your NBGs advanced WAN settings, click Network > WAN > Advanced. The screen appears as shown. Figure 82 Network > WAN > Advanced The following table describes the labels in this screen. Table 54 Network > WAN > Advanced LABEL Multicast Setup Multicast DESCRIPTION Select IGMPv1/v2 to enable multicasting. This applies to traffic routed from the WAN to the LAN. Select None to disable this feature. This may cause incoming traffic to be dropped or sent to all connected network devices. Auto-Subnet Configuration None Select this option to have the NBG do nothing when it gets a WAN IP address in the range of 192.168.x.y (where x and y are from zero to nine) or in the same subnet as the LAN IP address. Select this option to have the NBG change its LAN IP address to 10.0.0.1 or 192.168.1.1 accordingly when the NBG gets a dynamic WAN IP address in the same subnet as the LAN IP address 192.168.1.1 or 10.0.0.1. Enable Auto-IP-

Change mode Apply Reset The NAT, DHCP server and firewall functions on the NBG are still available in thismode. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. NBG6515 Users Guide 110 CHAPTER 14 LAN 14.1 Overview This chapter describes how to configure LAN settings. A Local Area Network (LAN) is a shared communication system to which many computers are attached. A LAN is a computer network limited to the immediate area, usually the same building or floor of a building. The LAN screens can help you configure a LAN DHCP server, manage IP addresses, and partition your physical network into logical networks. Figure 83 LAN Example The LAN screens can help you manage IP addresses. 14.2 What You Can Do Use the IP screen (Section 14.4 on page 112) to change the IP address for your NBG. 14.3 What You Need To Know The actual physical connection determines whether the NBG ports are LAN or WAN ports. There are two separate IP networks, one inside the LAN network and the other outside the WAN network as shown next. NBG6515 Users Guide 111 Chapter 14 LAN Figure 84 LAN and WAN IP Addresses The LAN parameters of the NBG are preset in the factory with the following values:

IP address of 192.168.1.1 with subnet mask of 255.255.255.0 (24 bits) DHCP server enabled with 32 client IP addresses starting from 192.168.1.33. These parameters should work for the majority of installations. If your ISP gives you explicit DNS server address(es), read the embedded Web Configurator help regarding what fields need to be configured. 14.3.1 IP Pool Setup The NBG is pre-configured with a pool of 32 IP addresses starting from 192.168.1.33 to 192.168.1.64. This configuration leaves 31 IP addresses (excluding the NBG itself) in the lower range (192.168.1.2 to 192.168.1.32) for other server computers, for instance, servers for mail, FTP, TFTP, web, etc., that you may have. 14.3.2 LAN TCP/IP The NBG has built-in DHCP server capability that assigns IP addresses and DNS servers to systems that support DHCP client capability. 14.3.3 IP Alias IP alias allows you to partition a physical network into different logical networks over the same Ethernet interface. The NBG supports three logical LAN interfaces via its single physical Ethernet interface with the NBG itself as the gateway for each LAN network. 14.4 LAN IP Screen Use this screen to change the IP address for your NBG. Click Network > LAN > IP. NBG6515 Users Guide 112 Chapter 14 LAN Figure 85 Network > LAN > IP The following table describes the labels in this screen. Table 55 Network > LAN > IP LABEL DESCRIPTION IP Address Type the IP address of your NBG in dotted decimal notation. IP Subnet Mask The subnet mask specifies the network number portion of an IP address. Your NBG will automatically calculate the subnet mask based on the IP address that you assign. Unless you are implementing subnetting, use the subnet mask computed by the NBG. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Apply Reset NBG6515 Users Guide 113 CHAPTER 15 DHCP Server 15.1 Overview DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows individual clients to obtain TCP/IP configuration at start-up from a server. You can configure the NBGs LAN as a DHCP server or disable it. When configured as a server, the NBG provides the TCP/IP configuration for the clients. If DHCP service is disabled, you must have another DHCP server on your LAN, or else the computer must be manually configured. 15.2 What You Can Do Use the General (Section 15.3 on page 114) screen to enable the DHCP server. Use the Advanced (Section 15.4 on page 115) screen to assign IP addresses on the LAN to specific individual computers based on their MAC Addresses. 15.3 General Screen Use this screen to enable the DHCP server. Click Network > DHCP Server. The following screen displays. Figure 86 Network > DHCP Server > General The following table describes the labels in this screen. DESCRIPTION Select this check box to activate the DHCP for LAN. Table 56 Network > DHCP Server > General LABEL Enable DHCP Server IP Pool Starting Address End Address This field specifies the first of the contiguous addresses in the IP address pool for LAN. This field specifies the last of the contiguous addresses in the IP address pool for LAN. NBG6515 Users Guide 114 Chapter 15 DHCP Server Table 56 Network > DHCP Server > General (continued) LABEL Apply Reset DESCRIPTION Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. 15.4 Advanced Screen This screen allows you to assign IP addresses on the LAN to specific individual computers based on their MAC addresses. You can also use this screen to configure the DNS server information that the NBG sends to the DHCP clients. To change your NBGs static DHCP settings, click Network > DHCP Server > Advanced. The following screen displays. Figure 87 Network > DHCP Server > Advanced The following table describes the labels in this screen. DESCRIPTION Table 57 Network > DHCP Server > Advanced LABEL Add Application Rule IP Address MAC Address LAN Static DHCP Table

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IP Address MAC Address Modify Type the LAN IP address based on the MAC address in dotted decimal notation. Type the MAC address (with colons) you want to assign to your NBG This is the index number of the static IP table entry (row). Type the LAN IP address of a computer on your LAN. Type the MAC address (with colons) of a computer on your LAN. Click the Edit icon to open the edit screen where you can modify an IP address. Click the Delete icon to remove an IP address. DNS Server NBG6515 Users Guide 115 Chapter 15 DHCP Server Table 57 Network > DHCP Server > Advanced (continued) LABEL DNS Servers Assigned by DHCP Server DESCRIPTION The NBG passes a DNS (Domain Name System) server IP address (in the order you specify here) to the DHCP clients. The NBG only passes this information to the LAN DHCP clients when you select the Enable DHCP Server check box. When you clear the Enable DHCP Server check box, DHCP service is disabled and you must have another DHCP sever on your LAN, or else the computers must have their DNS server addresses manually configured. Select From ISP if your ISP dynamically assigns DNS server information (and the NBG's WAN IP address). The field to the right displays the (read-only) DNS server IP address that the ISP assigns. First DNS Server Second DNS Server Apply Reset Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's IP address in the field to the right. If you chose User-Defined, but leave the IP address set to 0.0.0.0, User-Defined changes to None after you click Apply. If you set a second choice to User-Defined, and enter the same IP address, the second User-Defined changes to None after you click Apply. Select DNS Relay to have the NBG act as a DNS proxy. The NBG's LAN IP address displays in the field to the right (read-only). The NBG tells the DHCP clients on the LAN that the NBG itself is the DNS server. When a computer on the LAN sends a DNS query to the NBG, the NBG forwards the query to the NBG's system DNS server (configured in the WAN >

Internet Connection screen) and relays the response back to the computer. You can only select DNS Relay for one of the three servers; if you select DNS Relay for a second or third DNS server, that choice changes to None after you click Apply. Select None if you do not want to configure DNS servers. If you do not configure a DNS server, you must know the IP address of a computer in order to access it. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. NBG6515 Users Guide 116 CHAPTER 16 Network Address Translation (NAT) 16.1 Overview NAT (Network Address Translation - NAT, RFC 1631) is the translation of the IP address of a host in a packet. For example, the source address of an outgoing packet, used within one network is changed to a different IP address known within another network. Each packet has two addresses a source address and a destination address. For outgoing packets, NAT maps private (local) IP addresses to globally unique ones required for communication with hosts on other networks. It replaces the original IP source address in each packet and then forwards it to the Internet. The NBG keeps track of the original addresses and port numbers so incoming reply packets can have their original values restored. The following figure illustrates this. Figure 88 NAT Example For more information on IP address translation, refer to RFC 1631, The IP Network Address Translator (NAT). 16.2 What You Can Do Use the General screen (Section 16.3 on page 118) to enable NAT and set a default server. Use the Application screen (Section 16.4 on page 118) o forward incoming service requests to the server(s) on your local network. Use the Advanced screen (Section 16.5 on page 120) to change your NBGs trigger port settings. NBG6515 Users Guide 117 Chapter 16 Network Address Translation (NAT) 16.3 General NAT Screen Use this screen to enable NAT and set a default server. Click Network > NAT > General to open the following screen. Figure 89 Network > NAT > General The following table describes the labels in this screen. DESCRIPTION Table 58 Network > NAT > General LABEL NAT Setup Enable Network Address Translation Network Address Translation (NAT) allows the translation of an Internet protocol address used within one network (for example a private IP address used in a local network) to a different IP address known within another network (for example a public IP address used on the Internet). Select the check box to enable NAT. Default Server Setup Server IP Address In addition to the servers for specified services, NAT supports a default server. A default server receives packets from ports that are not specified in the Application screen. If you do not assign a Default Server IP address, the NBG discards all packets received for ports that are not specified in the Application screen or remote management. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. Apply Reset 16.4 NAT Application Screen Use the Application screen to forward incoming service requests to the server(s) on your local network. You may enter a single port number or a range of port numbers to be forwarded, and the local IP address of the desired server. The port number identifies a service; for example, web service is on port 80 and FTP on port 21. In some cases, such as for unknown services or where one server can support more than one service (for example both FTP and web service), it might be better to specify a range of port numbers. In addition to the servers for specified services, NAT supports a default server. A service request that does not have a server explicitly designated for it is forwarded to the default server. If the default is not defined, the service request is simply discarded. NBG6515 Users Guide 118 Chapter 16 Network Address Translation (NAT) Note: Many residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to your ISP. Port forwarding allows you to define the local servers to which the incoming services will be forwarded. To change your NBGs port forwarding settings, click Network > NAT > Application. The screen appears as shown. Note: If you do not assign a Default Server IP address in the NAT > General screen, the NBG discards all packets received for ports that are not specified in this screen or remote management. Refer to Appendix E on page 232 for port numbers commonly used for particular services. Figure 90 Network > NAT > Application The following table describes the labels in this screen. Table 59 Network > NAT > Application LABEL Add Application Rule Active DESCRIPTION Select the check box to enable this rule and the requested service can be forwarded to the host with a specified internal IP address. Clear the checkbox to disallow forwarding of these ports to an inside server without having to delete the entry. Type a name (of up to 31 printable characters) to identify this rule in the first field next to Service Name. Otherwise, select a predefined service in the second field next to Service Name. The predefined service name and port number(s) will display in the Service Name and Port fields. Type a port number(s) to define the service to be forwarded to the specified server. To specify a range of ports, enter a hyphen (-) between the first port and the last port, such as 10-20. To specify two or more non-consecutive port numbers, separate them by a comma without spaces, such as 123,567. Type the IP address of the server on your LAN that receives packets from the port(s) specified in the Port field. Service Name Port Server IP Address NBG6515 Users Guide 119 Chapter 16 Network Address Translation (NAT) DESCRIPTION Table 59 Network > NAT > Application (continued) LABEL Application Rules Summary

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Active Name Port Server IP Address Modify This is the number of an individual port forwarding server entry. This icon is turned on when the rule is enabled. This field displays a name to identify this rule. This field displays the port number(s). This field displays the inside IP address of the server. Click the Edit icon to display and modify an existing rule setting in the fields under Add Application Rule. Apply Reset Click the Remove icon to delete a rule. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. 16.5 NAT Advanced Screen Some services use a dedicated range of ports on the client side and a dedicated range of ports on the server side. With regular port forwarding you set a forwarding port in NAT to forward a service

(coming in from the server on the WAN) to the IP address of a computer on the client side (LAN). The problem is that port forwarding only forwards a service to a single LAN IP address. In order to use the same service on a different LAN computer, you have to manually replace the LAN computer's IP address in the forwarding port with another LAN computer's IP address. Trigger port forwarding solves this problem by allowing computers on the LAN to dynamically take turns using the service. The NBG records the IP address of a LAN computer that sends traffic to the WAN to request a service with a specific port number and protocol (a "trigger" port). When the NBG's WAN port receives a response with a specific port number and protocol ("incoming" port), the NBG forwards the traffic to the LAN IP address of the computer that sent the request. After that computers connection for that service closes, another computer on the LAN can use the service in the same manner. This way you do not need to configure a new IP address each time you want a different LAN computer to use the application. To change your NBGs trigger port settings, click Network > NAT > Advanced. The screen appears as shown. Note: Only one LAN computer can use a trigger port (range) at a time. NBG6515 Users Guide 120 Chapter 16 Network Address Translation (NAT) Figure 91 Network > NAT > Advanced The following table describes the labels in this screen. Table 60 Network > NAT > Advanced LABEL Add Application Rule Service Name DESCRIPTION Trigger Port Incoming Port Type a unique name (up to 15 characters) for identification purposes. All characters are permitted - including spaces. The trigger port is a port (or a range of ports) that causes (or triggers) the NBG to record the IP address of the LAN computer that sent the traffic to a server on the WAN. Select the transport layer protocol used for the service. Choices are TCP, UDP, or Both. Type a port number or a range of port numbers. Incoming is a port (or a range of ports) that a server on the WAN uses when it sends out a particular service. The NBG forwards the traffic with this port (or range of ports) to the client computer on the LAN that requested the service. Select the transport layer protocol used for the service. Choices are TCP, UDP, or Both. Type a port number or a range of port numbers. Application Rules Summary

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Active Name Trigger Port Incoming Port This is the rule index number (read-only). This icon is turned on when the rule is enabled. This field displays a name to identify this rule. This field displays the protocol and the port number or a range of port numbers. This field displays the protocol and the port number or a range of port numbers. Modify Click the Edit icon to edit the port triggering rule. Apply Reset Click the Delete icon to delete an existing rule. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. 16.5.1 Trigger Port Forwarding Example The following is an example of trigger port forwarding. NBG6515 Users Guide 121 Chapter 16 Network Address Translation (NAT) Figure 92 Trigger Port Forwarding Process: Example Router Router 1 2 3 4 Jane requests a file from the Real Audio server (port 7070). Port 7070 is a trigger port and causes the NBG to record Janes computer IP address. The NBG associates Jane's computer IP address with the "incoming" port range of 6970-7170. The Real Audio server responds using a port number ranging between 6970-7170. The NBG forwards the traffic to Janes computer IP address. 5 Only Jane can connect to the Real Audio server until the connection is closed or times out. The NBG times out in three minutes with UDP (User Datagram Protocol), or two hours with TCP/IP (Transfer Control Protocol/Internet Protocol). 16.5.2 Two Points To Remember About Trigger Ports 1 2 Trigger events only happen on data that is going coming from inside the NBG and going to the outside. If an application needs a continuous data stream, that port (range) will be tied up so that another computer on the LAN cant trigger it. NBG6515 Users Guide 122 CHAPTER 17 Dynamic DNS 17.1 Overview Dynamic DNS (DDNS) services let you use a domain name with a dynamic IP address. 17.2 What You Can Do Use the Dynamic DNS screen (Section 17.4 on page 123) to enable DDNS and configure the DDNS settings on the NBG. 17.3 What You Need To Know Dynamic DNS allows you to update your current dynamic IP address with one or many dynamic DNS services so that anyone can contact you (in NetMeeting, CU-SeeMe, etc.). You can also access your FTP server or Web site on your own computer using a domain name (for instance myhost.dhs.org, where myhost is a name of your choice) that will never change instead of using an IP address that changes each time you reconnect. Your friends or relatives will always be able to call you even if they don't know your IP address. 17.4 Dynamic DNS Screen To change your NBGs DDNS, click Network > DDNS. The screen appears as shown. Figure 93 Network > DDNS NBG6515 Users Guide 123 Chapter 17 Dynamic DNS The following table describes the labels in this screen. Table 61 Network > DDNS LABEL Enable Dynamic DNS Service Provider Host Name DESCRIPTION Select this check box to use dynamic DNS. Select the name of your Dynamic DNS service provider. Enter a host names in the field provided. You can specify up to two host names in the field separated by a comma (","). Enter your user name. Enter the password assigned to you. Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. User Name Password Apply Reset NBG6515 Users Guide 124 CHAPTER 18 Static Route 18.1 Overview This chapter shows you how to configure static routes for your NBG. Each remote node specifies only the network to which the gateway is directly connected, and the NBG has no knowledge of the networks beyond. For instance, the NBG knows about network N2 in the following figure through remote node Router 1. However, the NBG is unable to route a packet to network N3 because it doesn't know that there is a route through the same remote node Router 1

(via gateway Router 2). The static routes are for you to tell the NBG about the networks beyond the remote nodes. Figure 94 Example of Static Routing Topology 18.2 What You Can Do Use the IP Static Route screen (Section 18.3 on page 125) to view, add and delete routes. 18.3 IP Static Route Screen Click Network > Static Route to open the IP Static Route screen. NBG6515 Users Guide 125 Chapter 18 Static Route Figure 95 Network > Static Route The following table describes the labels in this screen. Enter a the name that describes or identifies this route. Enter the IP network address of the final destination. This is the subnet to which the routes final destination belongs. Enter the the IP address of the gateway. Assign a number to identify the route. Select the NBG port types. The port types are WAN and LAN. Click this to add the IP static route. DESCRIPTION Table 62 Network > Static Route LABEL Static Routing Settings Route Name Destination IP Address IP Subnet Mask Gateway IP Address Metric Interface Add Rule Application Rules Summary

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Active Route Name Destination This is the number of an individual static route. The rules are always on and this is indicated by the icon. This is the name that describes or identifies this route. This parameter specifies the IP network address of the final destination. Routing is always based on network number. This is the IP address of the gateway. The gateway is a router or switch on the same network segment as the device's LAN or WAN port. The gateway helps forward packets to their destinations. This is the number assigned to the route. This displays the NBG port types. The port types are WAN and LAN. Click the Delete icon to remove a static route from the NBG. A window displays asking you to confirm that you want to delete the route. Click Reset to begin configuring this screen afresh. Gateway Metric Interface Delete Reset NBG6515 Users Guide 126 CHAPTER 19 Firewall 19.1 Overview This chapter shows you how to enable and configure the firewall that protects your NBG and your LAN from unwanted or malicious traffic. Enable the firewall to protect your LAN computers from attacks by hackers on the Internet and control access between the LAN and WAN. By default the firewall:

allows traffic that originates from your LAN computers to go to all of the networks. blocks traffic that originates on the other networks from going to the LAN. The following figure illustrates the default firewall action. User A can initiate an IM (Instant Messaging) session from the LAN to the WAN (1). Return traffic for this session is also allowed (2). However other traffic initiated from the WAN is blocked (3 and 4). Figure 96 Default Firewall Action 19.2 What You Can Do Use the General (Section 19.4 on page 128) screen to enable or disable the NBGs firewall. Use the MAC Filtering Rule screen (Section 19.5 on page 129) to configure the NBG to block access to devices or block the devices from accessing the NBG. Use the IP Filtering Rule screen (Section 19.6 on page 130) to configure the NBG to block access to devices or block the devices from accessing the NBG. NBG6515 Users Guide 127 Chapter 19 Firewall 19.3 What You Need To Know The NBGs firewall feature physically separates the LAN and the WAN and acts as a secure gateway for all data passing between the networks. It is designed to protect against Denial of Service (DoS) attacks when activated (click the General tab under Firewall and then click the Enable Firewall check box). The NBG's purpose is to allow a private Local Area Network (LAN) to be securely connected to the Internet. The NBG can be used to prevent theft, destruction and modification of data, as well as log events, which may be important to the security of your network. The NBG is installed between the LAN and a broadband modem connecting to the Internet. This allows it to act as a secure gateway for all data passing between the Internet and the LAN. The NBG has one Ethernet WAN port and four Ethernet LAN ports, which are used to physically separate the network into two areas.The WAN (Wide Area Network) port attaches to the broadband

(cable or DSL) modem to the Internet. The LAN (Local Area Network) port attaches to a network of computers, which needs security from the outside world. These computers will have access to Internet services such as e-mail, FTP and the World Wide Web. However, "inbound access" is not allowed (by default) unless the remote host is authorized to use a specific service. 19.4 General Firewall Screen Use this screen to enable or disable the NBGs firewall, and set up firewall logs. Click Security >

Firewall to open the General screen. Figure 97 Security > Firewall > General The following table describes the labels in this screen. Table 63 Security > Firewall > General LABEL Firewall Setup Enable Firewall DESCRIPTION Select this check box to activate the firewall. The NBG performs access control and protects against Denial of Service (DoS) attacks when the firewall is activated. NBG6515 Users Guide 128 Chapter 19 Firewall Table 63 Security > Firewall > General LABEL ICMP DESCRIPTION Internet Control Message Protocol is a message control and error-reporting protocol between a host server and a gateway to the Internet. ICMP uses Internet Protocol (IP) datagrams, but the messages are processed by the TCP/IP software and directly apparent to the application user. Select this check box to activate the ICMP. The NBG will respond to WAN incoming Ping requests. Click Apply to save the settings. Click Reset to start configuring this screen again. Enable ICMP

(WAN Ping) Apply Reset 19.5 MAC Filtering Rule Screen If an outside user attempts to probe an unsupported port on your NBG, an ICMP response packet is automatically returned. This allows the outside user to know the NBG exists. Use this screen to prevent the ICMP response packet from being sent. This keeps outsiders from discovering your NBG when unsupported ports are probed. You can also use this screen to enable service blocking, enter/delete/modify the services you want to block and the date/time you want to block them. Click Security > Firewall > MAC Filtering Rule. The screen appears as shown next. Figure 98 Security > Firewall > MAC Filtering Rule NBG6515 Users Guide 129 Chapter 19 Firewall The following table describes the labels in this screen. Table 64 Security > Firewall > MAC Filtering Rule LABEL MAC Filtering Rule Enable MAC Filtering DESCRIPTION Select this check box to enable MAC address filtering. Define the filter action for the list of MAC addresses in the MAC Filtering Table. Select Allow to permit access to the NBG, MAC addresses not listed will be denied access to the NBG. Select Deny to block access to the NBG, MAC addresses not listed will be allowed to access the NBG. MAC Filtering Table Client PC MAC Address Enter the MAC address of the computer for which the MAC filtering rule applies. This is the number of an individual MAC filtering rule. This field displays the MAC address of the computer. Enter a name that identifies or describes the firewall rule. Click this to add the MAC filtering rule. Comment Add MAC Filtering Table NO. Client PC MAC Address Comment Select Delete Selected Click the Delete Selected button to remove the MAC filtering rule which selected from the MAC Filtering Table. A window displays asking you to confirm that you want to delete the rule. Click the Delete All button to remove all MAC filtering rules from the NBG. A window displays asking you to confirm that you want to delete all rules. Click Apply to save your changes back to the NBG. Click Reset to start configuring this screen again. This field displays the descriptions of the MAC filtering rule. Select the MAC filtering rule which you want to delete. Apply Reset Delete All See Appendix E on page 232 for commonly used services and port numbers. 19.6 IP Filtering Rule Screen If an outside user attempts to probe an unsupported port on your NBG, an ICMP response packet is automatically returned. This allows the outside user to know the NBG exists. Use this screen to prevent the ICMP response packet from being sent. This keeps outsiders from discovering your NBG when unsupported ports are probed. You can also use this screen to enable service blocking, enter/delete/modify the services you want to block and the date/time you want to block them. Click Security > Firewall > IP Filtering Rule. The screen appears as shown next. NBG6515 Users Guide 130 Chapter 19 Firewall Figure 99 Security > Firewall > IP Filtering Rule The following table describes the labels in this screen. Table 65 Security > Firewall > IP Filtering Rule LABEL IP Filtering Rule Enable IP Filtering DESCRIPTION Select this check box to enable IP filtering. Define the filter action for the list of MAC addresses in the IP Filtering Table. Select Allow to permit access to the NBG, IP addresses not listed will be denied access to the NBG. Select Deny to block access to the NBG, IP addresses not listed will be allowed to access the NBG. This is the number of an individual IP filtering rule. This field displays a description to identify this rule. This field displays the IP address (or a range of IP addresses) of the computer. This field displays the clients services you selected. This field displays the protocol used for the service. This field displays the port number(s). Select the IP filtering rule which you want to delete. Click this to add the IP filtering rule. IP Filtering Table NO. PC Description PC IP Address Client Service Protocol Port Range Select Add Delete Selected Click the Delete Selected button to remove the IP filtering rule which selected from the IP Filtering Table. A window displays asking you to confirm that you want to delete the rule. Click the Delete All button to remove all IP filtering rules from the NBG. A window displays asking you to confirm that you want to delete all rules. Click Apply to save your changes back to the NBG. Click Reset to start configuring this screen again. Apply Reset Delete All NBG6515 Users Guide 131 Chapter 19 Firewall Figure 100 Security > Firewall > IP Filtering Rule: Add The following table describes the labels in this screen. Enter the IP address of the computer for which the IP filtering rule applies. DESCRIPTION Enter a name that identifies or describes the firewall rule. Table 66 Security > Firewall > IP Filtering Rule: Add LABEL Client PC Description Client PC IP Address Client Service Service Name Detailed Description Select User Define Service Protocol Port Range Select client services which you want to apply. This field displays the services which be provided from clients. This field displays the details of Service Name. Select the transport layer protocol used for the service. Choices are TCP, UDP, or Both. Type a range of port numbers. NBG6515 Users Guide 132 Chapter 19 Firewall Table 66 Security > Firewall > IP Filtering Rule: Add LABEL Add Cancel DESCRIPTION Click Apply to save your changes back to the NBG. Click Cancel to exit this screen without saving. See Appendix E on page 232 for commonly used services and port numbers. NBG6515 Users Guide 133 CHAPTER 20 Content Filter 20.1 Overview This chapter provides a brief overview of content filtering using the embedded web GUI. Internet content filtering allows you to create and enforce Internet access policies tailored to your needs. Content filtering is the ability to block certain web features or specific URL keywords. 20.2 What You Can Do Use the Content Filter (Section 20.4 on page 135) screen to restrict web features, add keywords for blocking and designate a trusted computer. 20.3 What You Need To Know Content filtering allows you to block certain web features, such as cookies, and/or block access to specific web sites. For example, you can configure one policy that blocks John Does access to arts and entertainment web pages. 20.3.1 Content Filtering Profiles A content filtering profile conveniently stores your custom settings for the following features. Restrict Web Features The NBG can disable web proxies and block web features such as ActiveX controls, Java applets and cookies. Keyword Blocking URL Checking The NBG checks the URLs domain name (or IP address) and file path separately when performing keyword blocking. The URLs domain name or IP address is the characters that come before the first slash in the URL. For example, with the URL www.zyxel.com.tw/news/pressroom.php, the domain name is www.zyxel.com.tw. The file path is the characters that come after the first slash in the URL. For example, with the URL www.zyxel.com.tw/news/pressroom.php, the file path is news/pressroom.php. NBG6515 Users Guide 134 Chapter 20 Content Filter Since the NBG checks the URLs domain name (or IP address) and file path separately, it will not find items that go across the two. For example, with the URL www.zyxel.com.tw/news/

pressroom.php, the NBG would find tw in the domain name (www.zyxel.com.tw). It would also find news in the file path (news/pressroom.php) but it would not find tw/news. 20.4 Content Filter Screen Use this screen to restrict web features, add keywords for blocking and designate a trusted computer. Click Security > Content Filter to open the Content Filter screen. Figure 101 Security > Content Filter > Content Filter The following table describes the labels in this screen. Table 67 Security > Content Filter > Content Filter LABEL Enable URL Keyword Blocking DESCRIPTION The NBG can block Web sites with URLs that contain certain keywords in the domain name or IP address. For example, if the keyword "bad" was enabled, all sites containing this keyword in the domain name or IP address will be blocked, e.g., URL http://

www.website.com/bad.html would be blocked. Select this check box to enable this feature. Type a keyword in this field. You may use any character (up to 64 characters). Wildcards are not allowed. You can also enter a numerical IP address. This list displays the keywords already added. Click Add after you have typed a keyword. Repeat this procedure to add other keywords. Up to 64 keywords are allowed. When you try to access a web page containing a keyword, you will get a message telling you that the content filter is blocking this request. Highlight a keyword in the lower box and click Delete to remove it. The keyword disappears from the text box after you click Apply. Click this button to remove all of the listed keywords. Click Apply to save your changes. Click Reset to begin configuring this screen afresh NBG6515 Users Guide 135 Keyword Keyword List Add Delete Clear All Apply Reset CHAPTER 21 Bandwidth Management 21.1 Overview This chapter contains information about configuring bandwidth management and editing rules. ZyXELs Bandwidth Management allows you to specify bandwidth management rules based on an application. In the figure below, uplink traffic goes from the LAN device (A) to the WAN device (B). Bandwidth management is applied before sending the packets out to the WAN. Downlink traffic comes back from the WAN device (B) to the LAN device (A). Bandwidth management is applied before sending the traffic out to LAN. Figure 102 Bandwidth Management Example

-> VOIP

-> FTP

-> HTTP

-> Chat, Email A B You can allocate specific amounts of bandwidth capacity (bandwidth budgets) to individual applications (like VoIP, Web, FTP, and E-mail for example). 21.2 What You Can Do Use the General screen (Section 21.4 on page 137) to enable bandwidth management and assign bandwidth values. Use the Advanced screen (Section 21.5 on page 137) to configure bandwidth managements rule for the pre-defined services and applications. NBG6515 Users Guide 136 Chapter 21 Bandwidth Management 21.3 What You Need To Know The sum of the bandwidth allotments that apply to the WAN interface (LAN to WAN, WLAN to WAN) must be less than or equal to the Upstream Bandwidth that you configure in the Bandwidth Management Advanced screen (Section 21.5 on page 137). The sum of the bandwidth allotments that apply to the LAN interface (WAN to LAN, WAN to WLAN) must be less than or equal to the Downstream Bandwidth that you configure in the Bandwidth Management Advanced screen Section 21.5 on page 137. 21.4 General Screen Use this screen to have the NBG apply bandwidth management. Click Management > Bandwidth Management to open the bandwidth management General screen. Figure 103 Management > Bandwidth Management > General The following table describes the labels in this screen. Table 68 Management > Bandwidth Management > General LABEL Enable Bandwidth Management DESCRIPTION This field allows you to have NBG apply bandwidth management. Enable bandwidth management to give traffic that matches a bandwidth rule priority over traffic that does not match a bandwidth rule. Enabling bandwidth management also allows you to control the maximum or minimum amounts of bandwidth that can be used by traffic that matches a bandwidth rule. Click Apply to save your customized settings. Click Reset to begin configuring this screen afresh. Apply Reset 21.5 Advanced Screen Use this screen to configure bandwidth management rules for the pre-defined services or applications. You can also use this screen to configure bandwidth management rule for other services or applications that are not on the pre-defined list of NBG. Additionally, you can define the source and destination IP addresses and port for a service or application. NBG6515 Users Guide 137 Chapter 21 Bandwidth Management Note: The two tables shown in this screen can be configured and applied at the same time. Click Management > Bandwidth Management > Advanced to open the bandwidth management Advanced screen. Figure 104 Management > Bandwidth Management > Advanced The following table describes the labels in this screen. Table 69 Management > Bandwidth Management > Advanced LABEL Management Bandwidth Upstream Bandwidth DESCRIPTION Select the total amount of bandwidth (from 64 Kilobits to 50 Megabits) that you want to dedicate to uplink traffic. If you select User Defined, type the total amount of bandwidth that you want to dedicate to uplink (or outgoing) traffic in the (kbps) text box. This is traffic from LAN/WLAN to WAN. NBG6515 Users Guide 138 Chapter 21 Bandwidth Management Table 69 Management > Bandwidth Management > Advanced (continued) LABEL Downstream Bandwidth DESCRIPTION Select the total amount of bandwidth (from 64 Kilobits to 50 Megabits) that you want to dedicate to uplink traffic. If you select User Defined, type the total amount of bandwidth that you want to dedicate to downlink (or incoming) traffic in the (kbps) text box. This is traffic from WAN to LAN/WLAN. Application List Use this table to allocate specific amounts of bandwidth based on a pre-defined service.

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Priority This is the number of an individual bandwidth management rule. Select a priority from the drop down list box. Choose High, Mid or Low. High - Select this for voice traffic or video that is especially sensitive to jitter (jitter is the variations in delay). Mid - Select this for "excellent effort" or better than best effort and would include important business traffic that can tolerate some delay. Low - Select this for non-critical "background" traffic such as bulk transfers that are allowed but that should not affect other applications and users. Category Service This is the category where a service belongs. This is the name of the service. Advanced Setting User-defined Service

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Enable Direction Service Name Category Modify Select the check box to have the NBG apply this bandwidth management rule. Click the Edit icon to open the Rule Configuration screen where you can modify the rule. Use this table to allocate specific amounts of bandwidth to specific applications or services you specify. This is the number of an individual bandwidth management rule. Select this check box to have the NBG apply this bandwidth management rule. Select TO LAN/WLAN to apply bandwidth management to traffic from WAN to LAN/WLAN. Select TO WAN to apply bandwidth management to traffic from LAN/WLAN to WAN. Enter a descriptive name for the bandwidth management rule. This is the category where a service belongs. Click the Edit icon to open the Rule Configuration screen. Modify an existing rule or create a new rule in the Rule Configuration screen. See Section 21.5.2 on page 140 for more information. Apply Reset Click the Remove icon to delete a rule. Click Apply to save your customized settings. Click Reset to begin configuring this screen afresh. 21.5.1 Rule Configuration: Application Rule Configuration If you want to edit a bandwidth management rule for a pre-defined service or application, click the Edit icon in the Application List table of the Advanced screen. The following screen displays. NBG6515 Users Guide 139 Chapter 21 Bandwidth Management Figure 105 Bandwidth Management Rule Configuration: Application List The following table describes the labels in this screen. Table 70 Bandwidth Management Rule Configuration: Application List LABEL

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Enable Direction Bandwidth Protocol OK Cancel DESCRIPTION This is the number of an individual bandwidth management rule. Select an interfaces check box to enable bandwidth management on that interface. These read-only labels represent the physical interfaces. Bandwidth management applies to all traffic flowing out of the router through the interface, regardless of the traffics source. Traffic redirect or IP alias may cause LAN-to-LAN traffic to pass through the NBG and be managed by bandwidth management. Select Maximum Bandwidth or Minimum Bandwidth and specify the maximum or minimum bandwidth allowed for the rule in kilobits per second. This is the protocol (TCP, UDP or user-defined) used for the service. Click OK to save your customized settings. Click Cancel to exit this screen without saving. 21.5.2 Rule Configuration: User Defined Service Rule Configuration If you want to edit a bandwidth management rule for other applications or services, click the Edit icon in the User-defined Service table of the Advanced screen. The following screen displays. Figure 106 Bandwidth Management Rule Configuration: User-defined Service NBG6515 Users Guide 140 Chapter 21 Bandwidth Management The following table describes the labels in this screen Table 71 Bandwidth Management Rule Configuration: User-defined Service LABEL BW Budget Destination Address Range Destination Port Range Source Address Range Source Port Range Protocol Apply Cancel DESCRIPTION Select Maximum Bandwidth or Minimum Bandwidth and specify the maximum or minimum bandwidth allowed for the rule in kilobits per second. Enter the IP address range of the destination computer. The NBG applies bandwidth management to the service or application that is entering this computer. This is the port number of the destination that define the traffic type, for example TCP port 80 defines web traffic. Enter the IP address range of the computer that initializes traffic for the application or service. The NBG applies bandwidth management to traffic initiating from this computer. This is the port number of the source that define the traffic type, for example TCP port 80 defines web traffic. Select the protocol (TCP, UDP) for which the bandwidth management rule applies. Click Apply to save your customized settings. Click Cancel to exit this screen without saving. See Appendix E on page 232 for commonly used services and port numbers. NBG6515 Users Guide 141 CHAPTER 22 Remote Management 22.1 Overview This chapter provides information on the Remote Management screens. Remote Management allows you to manage your NBG from a remote location through the following interfaces:

LAN and WAN LAN only WAN only Note: The NBG is managed using the Web Configurator. 22.2 What You Can Do Use the WWW screen (Section 22.4 on page 143) to define the interface/s from which the NBG can be managed remotely and specify a secure client that can manage the NBG. 22.3 What You Need to Know Remote management over LAN or WAN will not work when:

1 2 3 The IP address in the Secured Client IP Address field (Section 22.4 on page 143) does not match the client IP address. If it does not match, the NBG will disconnect the session immediately. There is already another remote management session. You may only have one remote management session running at one time. There is a firewall rule that blocks it. 22.3.1 Remote Management and NAT When NAT is enabled:

Use the NBGs WAN IP address when configuring from the WAN. Use the NBGs LAN IP address when configuring from the LAN. NBG6515 Users Guide 142 Chapter 22 Remote Management 22.3.2 System Timeout There is a default system management idle timeout of five minutes (three hundred seconds). The NBG automatically logs you out if the management session remains idle for longer than this timeout period. The management session does not time out when a statistics screen is polling. You can change the timeout period in the System screen 22.4 WWW Screen To change your NBGs remote management settings, click Management > Remote Management

> WWW. Figure 107 Management > Remote Management > WWW The following table describes the labels in this screen Table 72 Management > Remote Management > WWW LABEL Enable Remote WAN Access Server Port Secured Client IP Address Apply Reset DESCRIPTION Select this check box to enable Remote WAN Access. You may change the server port number for a service if needed, however you must use the same port number in order to use that service for remote management. Select All to allow all computes to access the NBG. Otherwise, check Selected and specify the IP address of the computer that can access the NBG. Click Apply to save your customized settings and exit this screen. Click Reset to begin configuring this screen afresh. NBG6515 Users Guide 143 CHAPTER 23 Universal Plug-and-Play (UPnP) 23.1 Overview This chapter introduces the UPnP feature in the web configurator. Universal Plug and Play (UPnP) is a distributed, open networking standard that uses TCP/IP for simple peer-to-peer network connectivity between devices. A UPnP device can dynamically join a network, obtain an IP address, convey its capabilities and learn about other devices on the network. In turn, a device can leave a network smoothly and automatically when it is no longer in use. 23.2 What You Can Do Use the UPnP screen (Section 23.4 on page 145) to enable UPnP on your NBG. 23.3 What You Need to Know UPnP hardware is identified as an icon in the Network Connections folder (Windows XP). Each UPnP compatible device installed on your network will appear as a separate icon. Selecting the icon of a UPnP device will allow you to access the information and properties of that device. 23.3.1 NAT Traversal UPnP NAT traversal automates the process of allowing an application to operate through NAT. UPnP network devices can automatically configure network addressing, announce their presence in the network to other UPnP devices and enable exchange of simple product and service descriptions. NAT traversal allows the following:

Dynamic port mapping Learning public IP addresses Assigning lease times to mappings Windows Messenger is an example of an application that supports NAT traversal and UPnP. See the NAT chapter for more information on NAT. NBG6515 Users Guide 144 Chapter 23 Universal Plug-and-Play (UPnP) 23.3.2 Cautions with UPnP The automated nature of NAT traversal applications in establishing their own services and opening firewall ports may present network security issues. Network information and configuration may also be obtained and modified by users in some network environments. When a UPnP device joins a network, it announces its presence with a multicast message. For security reasons, the NBG allows multicast messages on the LAN only. All UPnP-enabled devices may communicate freely with each other without additional configuration. Disable UPnP if this is not your intention. 23.4 UPnP Screen Use this screen to enable UPnP on your NBG. Click Management > UPnP to display the screen shown next. Figure 108 Management > UPnP The following table describes the fields in this screen. Table 73 Management > UPnP DESCRIPTION LABEL Select this check box to activate UPnP. Be aware that anyone could use a UPnP application Enable the to open the web configurator's login screen without entering the NBG's IP address (although Universal Plug and Play you must still enter the password to access the web configurator).

(UPnP) Feature Apply Reset Click Apply to save the setting to the NBG. Click Reset to return to the previously saved settings. 23.5 Technical Refereance The sections show examples of using UPnP. NBG6515 Users Guide 145 Chapter 23 Universal Plug-and-Play (UPnP) 23.5.1 Using UPnP in Windows XP Example This section shows you how to use the UPnP feature in Windows XP. You must already have UPnP installed in Windows XP and UPnP activated on the NBG. Make sure the computer is connected to a LAN port of the NBG. Turn on your computer and the NBG. 23.5.1.1 Auto-discover Your UPnP-enabled Network Device 1 2 Click start and Control Panel. Double-click Network Connections. An icon displays under Internet Gateway. Right-click the icon and select Properties. Figure 109 Network Connections 3 In the Internet Connection Properties window, click Settings to see the port mappings there were automatically created. Figure 110 Internet Connection Properties 4 You may edit or delete the port mappings or click Add to manually add port mappings. NBG6515 Users Guide 146 Chapter 23 Universal Plug-and-Play (UPnP) Figure 111 Internet Connection Properties: Advanced Settings Figure 112 Internet Connection Properties: Advanced Settings: Add Note: When the UPnP-enabled device is disconnected from your computer, all port mappings will be deleted automatically. 5 Select Show icon in notification area when connected option and click OK. An icon displays in the system tray. Figure 113 System Tray Icon 6 Double-click on the icon to display your current Internet connection status. NBG6515 Users Guide 147 Chapter 23 Universal Plug-and-Play (UPnP) Figure 114 Internet Connection Status 23.5.2 Web Configurator Easy Access With UPnP, you can access the web-based configurator on the NBG without finding out the IP address of the NBG first. This comes helpful if you do not know the IP address of the NBG. Follow the steps below to access the web configurator. 1 Click Start and then Control Panel. 2 Double-click Network Connections. 3 Select My Network Places under Other Places. NBG6515 Users Guide 148 Chapter 23 Universal Plug-and-Play (UPnP) Figure 115 Network Connections 4 5 An icon with the description for each UPnP-enabled device displays under Local Network. Right-click on the icon for your NBG and select Invoke. The web configurator login screen displays. Figure 116 Network Connections: My Network Places 6 Right-click on the icon for your NBG and select Properties. A properties window displays with basic information about the NBG. NBG6515 Users Guide 149 Chapter 23 Universal Plug-and-Play (UPnP) Figure 117 Network Connections: My Network Places: Properties: Example NBG6515 Users Guide 150 CHAPTER 24 USB Media Sharing 24.1 Overview This chapter describes how to configure the media sharing settings on the NBG. Note: The read and write performance may be affected by amount of file-sharing traffic on your network, type of connected USB device and your USB version (1.1 or 2.0). Media Server You can set up your NBG to act as a media server to provide media (like video) to DLNA-compliant players, such as Windows Media Player, ZyXEL DMAs (Digital Media Adapters), Xboxes or PS3s. The media server and clients must have IP addresses in the same subnet. The NBG media server enables you to:

Publish all folders for everyone to play media files in the USB storage device connected to the NBG. Use hardware-based media clients like the DMA-2500 to play the files. Note: Anyone on your network can play the media files in the published folders. No user name and password nor other form of security is required. The following figure is an overview of the NBGs media server feature. DLNA devices A and B can access and play files on a USB device (C) which is connected to the NBG (D). Figure 118 Media Server Overview A B C D NBG6515 Users Guide 151 Chapter 24 USB Media Sharing File-Sharing Server You can also share files on a USB memory stick or hard drive connected to your NBG with users on your network. The following figure is an overview of the NBGs file-sharing server feature. Computers A and B can access files on a USB device (C) which is connected to the NBG (D). Figure 119 File Sharing Overview B A C D 24.2 What You Can Do Use the SMB/CIFS screen to enable file-sharing via the NBG using Windows Explorer or the workgroup name. This screen also allow you to configure the workgroup name and create user accounts (Section 24.5 on page 154). Use the DLNA screen to use the NBG as a media server and allow DLNA-compliant devices to play media files stored in the attached USB device (Section 24.6 on page 155). Use the FTP screen to allow file sharing via the NBG using FTP and create user accounts (Section 24.7 on page 155). 24.3 What You Need To Know DLNA The Digital Living Network Alliance (DLNA) is a group of personal computer and electronics companies that works to make products compatible in a home network. DLNA clients play files stored on DLNA servers. The NBG can function as a DLNA-compliant media server and stream files to DLNA-compliant media clients without any configuration. NBG6515 Users Guide 152 Chapter 24 USB Media Sharing Workgroup name This is the name given to a set of computers that are connected on a network and share resources such as a printer or files. Windows automatically assigns the workgroup name when you set up a network. File Systems A file system is a way of storing and organizing files on your hard drive and storage device. Often different operating systems such as Windows or Linux have different file systems. The file-sharing feature on your NBG supports New Technology File System (NTFS), File Allocation Table (FAT) and FAT32 file systems. Windows/CIFS Common Internet File System (CIFS) is a standard protocol supported by most operating systems in order to share files across the network. CIFS runs over TCP/IP but uses the SMB (Server Message Block) protocol found in Microsoft Windows for file and printer access; therefore, CIFS will allow all applications, not just Web browsers, to open and share files across the Internet. The NBG uses Common Internet File System (CIFS) protocol for its file sharing functions. CIFS compatible computers can access the USB file storage devices connected to the NBG. CIFS protocol is supported on Microsoft Windows, Linux Samba and other operating systems (refer to your systems specifications for CIFS compatibility). Samba SMB is a client-server protocol used by Microsoft Windows systems for sharing files, printers, and so on. Samba is a free SMB server that runs on most Unix and Unix-like systems. It provides an implementation of an SMB client and server for use with non-Microsoft operating systems. File Transfer Protocol This is a method of transferring data from one computer to another over a network such as the Internet. 24.4 Before You Begin 1 2 Make sure the NBG is connected to your network and turned on. Connect the USB device to one of the NBGs USB ports. The NBG detects the USB device and makes its contents available for browsing. If you are connecting a USB hard drive that comes with an external power supply, make sure it is connected to an appropriate power source that is on. NBG6515 Users Guide 153 Chapter 24 USB Media Sharing Note: If your USB device cannot be detected by the NBG, see the troubleshooting for suggestions. 24.5 SMB/CIFS Screen Use this screen to set up file-sharing via the NBG using Windows Explorer or the workgroup name. You can also configure the workgroup name and create file-sharing user accounts. Click Management > USB > SMB/CIFS. Figure 120 Management > USB > SMB/CIFS The following table describes the labels in this screen. Table 74 Management > USB > SMB/CIFS LABEL Enable SAMBA Server Name Work Group User Accounts

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Enable User Name DESCRIPTION Select this to enable file sharing through the NBG using Windows Explorer or by browsing to your work group. Specify the name to identify the NBG in a work group. You can add the NBG to an existing or a new workgroup on your network. Enter the name of the workgroup which your NBG automatically joins. You can set the NBGs workgroup name to be exactly the same as the workgroup name to which your computer belongs. Note: The NBG will not be able to join the workgroup if your local area network has restrictions set up that do not allow devices to join a workgroup. In this case, contact your network administrator. Before you can share files you need a user account. Configure the following fields to set up a file-sharing account. This is the index number of the user account. This field displays whether a user account is activated or not. Select the check box to enable the account. Clear the check box to disable the account. Enter a user name that will be allowed to access the shared files. You can enter up to 20 characters. Only letters and numbers allowed. NBG6515 Users Guide 154 Chapter 24 USB Media Sharing Table 74 Management > USB > SMB/CIFS (continued) LABEL Password DESCRIPTION Enter the password used to access the shared files. You can enter up to 20 characters. Only letters and numbers are allowed. The password is case sensitive. Specify the users access rights to the USB storage device which is connected to the NBGs USB port. Read & Write - The user has read and write rights, meaning that the user can create and edit the files on the connected USB device. Read - The user has read rights only and can not create or edit the files on the connected USB device. Click Apply to save your changes back to the NBG. Click Reset to return to the previously saved settings. USB Apply Reset 24.6 DLNA Screen Use this screen to have the NBG act as a DLNA-compliant media server that lets DLNA-compliant media clients on your network play video, music, and photos from the NBG (without having to copy them to another computer). Click Management > USB > DLNA. Figure 121 Management > USB > DLNA Click Rescan to have the NBG scan the media files on the connected USB device and do indexing of the file list again so that DLNA clients can find the new files if any. 24.7 FTP Screen Use this screen to set up file sharing via the NBG using FTP and create user accounts. Click Management > USB > FTP. NBG6515 Users Guide 155 Chapter 24 USB Media Sharing Figure 122 Management > USB > FTP The following table describes the labels in this screen. Table 75 Management > USB > FTP LABEL Enable FTP for WAN Select this to enable the FTP server on the NBG for file sharing using FTP. Port DESCRIPTION User Accounts

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Enable User Name Password USB Apply Reset You may change the server port number for FTP if needed, however you must use the same port number in order to use that service for file sharing. Before you can share files you need a user account. Configure the following fields to set up a file-sharing account. This is the index number of the user account. This field displays whether a user account is activated or not. Select the check box to enable the account. Clear the check box to disable the account. Enter a user name that will be allowed to access the shared files. You can enter up to 20 characters. Only letters and numbers allowed. Enter the password used to access the shared files. You can enter up to 20 characters. Only letters and numbers are allowed. The password is case sensitive. Specify the users access rights to the USB storage device which is connected to the NBGs USB port. Read & Write - The user has read and write rights, meaning that the user can create and edit the files on the connected USB device. Read - The user has read rights only and can not create or edit the files on the connected USB device. Click Apply to save your changes back to the NBG. Click Reset to return to the previously saved settings. 24.8 Example of Accessing Your Shared Files From a Computer You can use Windows Explorer or FTP to access the USB storage devices connected to the NBG. NBG6515 Users Guide 156 Chapter 24 USB Media Sharing This example shows you how to use Microsofts Windows XP to browse your shared files. Refer to your operating systems documentation for how to browse your file structure. 24.8.1 Use Windows Explorer to Share Files You should have enabled file sharing and created a user account (Bob/1234 for example) with read and write access to USB in the USB > SMB/CIFS screen. Open Windows Explorer to access the connected USB device using either Windows Explorer browser or by browsing to your workgroup. 1 In Windows Explorers Address bar type a double backslash \\ followed by the IP address of the NBG (the default IP address of the NBG in router mode is 192.168.1.1) and press [ENTER]. A screen asking for password authentication appears. Type the user name and password (Bob and 1234 in this example) and click OK. Note: Once you log into the shared folder via your NBG, you do not have to relogin unless you restart your computer. NBG6515 Users Guide 157 Chapter 24 USB Media Sharing 2 You can also use the workgroup name to access files by browsing to the workgroup folder using the folder tree on the left side of the screen. It is located under My Network Places. In this example the workgroup name is the default Workgroup. 24.8.2 Use FTP to Share Files You can use FTP to access the USB storage devices connected to the NBG. In this example, we use the web browser to share files via FTP from the LAN. The way or screen you log into the FTP server

(on the NBG) varies depending on your FTP client. See your FTP client documentation for more information. You should have enabled file sharing and created a user account (Bob/1234 for example) with read and write access to USB in the USB > FTP screen. 1 In your web browsers address or URL bar type ftp:// followed by the IP address of the NBG (the default LAN IP address of the NBG in router mode is 192.168.1.1) and click Go or press [ENTER]. NBG6515 Users Guide 158 Chapter 24 USB Media Sharing 2 A screen asking for password authentication appears. Enter the user name and password (you configured in the USB > FTP screen) and click Log On. 3 The screen changes and shows you the folder for the USB storage device connected to your NBG. Double-click the folder to display the contents in it. NBG6515 Users Guide 159 CHAPTER 25 Maintenance 25.1 Overview This chapter provides information on the Maintenance screens. 25.2 What You Can Do Use the General screen to configure system and domain name. You can also set the timeout period of the management session (Section 25.3 on page 160). Use the Password screen to change your NBGs system password (Section 25.4 on page 161). Use the Time screen to change your NBGs time and date (Section 25.5 on page 162). Use the Firmware Upgrade screen to upload firmware to your NBG (Section 25.6 on page 163). Use the Backup/Restore screen to view information related to factory defaults, backup configuration, and restoring configuration (Section 25.8 on page 166). Use the Restart screen to reboot the NBG without turning the power off (Section 25.8 on page 166). 25.3 General Screen Use this screen to set the configure system and domain name as well as management session timeout period. Click Maintenance > General. The following screen displays. Figure 123 Maintenance > General NBG6515 Users Guide 160 Chapter 25 Maintenance The following table describes the labels in this screen. Table 76 Maintenance > General LABEL DESCRIPTION System Setup System Name Domain Name Administrator Inactivity Timer Apply Reset System Name is a unique name to identify the NBG in an Ethernet network. Enter the domain name you want to give to the NBG. Type how many minutes a management session can be left idle before the session times out. The default is 5 minutes. After it times out you have to log in with your password again. Very long idle timeouts may have security risks. A value of "0" means a management session never times out, no matter how long it has been left idle (not recommended). Click Apply to save your changes back to the NBG. Click Reset to return to the previously saved settings. 25.4 Password Screen It is strongly recommended that you change your NBG's password. If you forget your NBG's password (or IP address), you will need to reset the device. See Section 25.8 on page 166 for details. Click Maintenance > Password. The screen appears as shown. Figure 124 Maintenance > Password The following table describes the labels in this screen. Table 77 Maintenance > Password LABEL Password Setup Change your NBGs password (recommended) using the fields as shown. Old Password DESCRIPTION Type the default password or the existing password you use to access the system in this field. Type your new system password (up to 30 characters). Note that as you type a password, the screen displays an asterisk (*) for each character you type. Type the new password again in this field. New Password Retype to Confirm Apply Reset Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. NBG6515 Users Guide 161 Chapter 25 Maintenance 25.5 Time Setting Screen Use this screen to configure the NBGs time based on your local time zone. To change your NBGs time and date, click Maintenance > Time. The screen appears as shown. Figure 125 Maintenance > Time The following table describes the labels in this screen. Table 78 Maintenance > Time LABEL Current Time and Date Current Time DESCRIPTION This field displays the time of your NBG. Current Date Each time you reload this page, the NBG synchronizes the time with the time server. This field displays the date of your NBG. Each time you reload this page, the NBG synchronizes the date with the time server. Current Time and Date Manual New Time

(hh:mm:ss) New Date

(yyyy/mm/dd) Select this radio button to enter the time and date manually. If you configure a new time and date, Time Zone and Daylight Saving at the same time, the new time and date you entered has priority and the Time Zone and Daylight Saving settings do not affect it. This field displays the last updated time from the time server or the last time configured manually. When you select Manual, enter the new time in this field and then click Apply. This field displays the last updated date from the time server or the last date configured manually. When you select Manual, enter the new date in this field and then click Apply. NBG6515 Users Guide 162 Chapter 25 Maintenance Table 78 Maintenance > Time (continued) LABEL Get from Time Server Auto DESCRIPTION Select this radio button to have the NBG get the time and date from the time server you specified below. Select Auto to have the NBG automatically search for an available time server and synchronize the date and time with the time server after you click Apply. Select User Defined Time Server Address and enter the IP address or URL (up to 20 extended ASCII characters in length) of your time server. Check with your ISP/network administrator if you are unsure of this information. User Defined Time Server Address Time Zone Setup Time Zone Daylight Savings Choose the time zone of your location. This will set the time difference between your time zone and Greenwich Mean Time (GMT). Daylight saving is a period from late spring to early fall when many countries set their clocks ahead of normal local time by one hour to give more daytime light in the evening. Start Date (mm/

dd) Select this option if you use Daylight Saving Time. Configure the day and time when Daylight Saving Time starts if you selected Daylight Savings. The o'clock field uses the 24 hour format. Here are a couple of examples:

Daylight Saving Time starts in most parts of the United States on the first Sunday of April. Each time zone in the United States starts using Daylight Saving Time at 2 A.M. local time. So in the United States you would select First, Sunday, April and select 2 in the o'clock field. Daylight Saving Time starts in the European Union on the last Sunday of March. All of the time zones in the European Union start using Daylight Saving Time at the same moment

(1 A.M. GMT or UTC). So in the European Union you would select Last, Sunday, March. The time you select in the o'clock field depends on your time zone. In Germany for instance, you would select 2 because Germany's time zone is one hour ahead of GMT or UTC (GMT+1). Configure the day and time when Daylight Saving Time ends if you selected Daylight Savings. The o'clock field uses the 24 hour format. Here are a couple of examples:

Daylight Saving Time ends in the United States on the last Sunday of October. Each time zone in the United States stops using Daylight Saving Time at 2 A.M. local time. So in the United States you would select Last, Sunday, October and select 2 in the o'clock field. Daylight Saving Time ends in the European Union on the last Sunday of October. All of the time zones in the European Union stop using Daylight Saving Time at the same moment

(1 A.M. GMT or UTC). So in the European Union you would select Last, Sunday, October. The time you select in the o'clock field depends on your time zone. In Germany for instance, you would select 2 because Germany's time zone is one hour ahead of GMT or UTC (GMT+1). Click Apply to save your changes back to the NBG. Click Reset to begin configuring this screen afresh. End Date Apply Reset 25.6 Firmware Upgrade Screen Find firmware at www.zyxel.com in a file that (usually) uses the system model name with a *.bin extension, e.g., NBG.bin. The upload process uses HTTP (Hypertext Transfer Protocol) and may take up to two minutes. After a successful upload, the system will reboot. Click Maintenance > Firmware Upgrade. Follow the instructions in this screen to upload firmware to your NBG. NBG6515 Users Guide 163 Chapter 25 Maintenance Figure 126 Maintenance > Firmware Upgrade The following table describes the labels in this screen. Table 79 Maintenance > Firmware Upgrade LABEL File Path Select file DESCRIPTION Type in the location of the file you want to upload in this field or click Select file to find it. Click Select file to find the .bin file you want to upload. Remember that you must decompress compressed (.zip) files before you can upload them. Click Upload to begin the upload process. This process may take up to two minutes. Click this to check for the latest updated firmware. Upload Check for Latest Firmware Now Note: Do not turn off the NBG while firmware upload is in progress!

After you see the Firmware Upload In Process screen, wait two minutes before logging into the NBG again. The NBG automatically restarts in this time causing a temporary network disconnect. In some operating systems, you may see the following icon on your desktop. Figure 127 Network Temporarily Disconnected After two minutes, log in again and check your new firmware version in the Status screen. If the upload was not successful, an error message appears. Click Return to go back to the Firmware Upgrade screen. 25.7 Configuration Backup/Restore Screen Backup configuration allows you to back up (save) the NBGs current configuration to a file on your computer. Once your NBG is configured and functioning properly, it is highly recommended that you back up your configuration file before making configuration changes. The backup configuration file will be useful in case you need to return to your previous settings. NBG6515 Users Guide 164 Chapter 25 Maintenance Restore configuration allows you to upload a new or previously saved configuration file from your computer to your NBG. Click Maintenance > Backup/Restore. Information related to factory defaults, backup configuration, and restoring configuration appears as shown next. Figure 128 Maintenance > Backup/Restore The following table describes the labels in this screen. Table 80 Maintenance > Backup/Restore LABEL Backup File Path Select file DESCRIPTION Click Backup to save the NBGs current configuration to your computer. Type in the location of the file you want to upload in this field or click Browse... to find it. Click Select file to find the file you want to upload. Remember that you must decompress compressed (.ZIP) files before you can upload them. Click Upload to begin the upload process. Upload Note: Do not turn off the NBG while configuration file upload is in progress. After you see a configuration upload successful screen, you must then wait one minute before logging into the NBG again. The NBG automatically restarts in this time causing a temporary network disconnect. Reset If you see an error screen, click Back to return to the Backup/Restore screen. Pressing the Reset button in this section clears all user-entered configuration information and returns the NBG to its factory defaults. You can also press the RESET button on the rear panel to reset the factory defaults of your NBG. Refer to the chapter about introducing the Web Configurator for more information on the RESET button. Note: If you uploaded the default configuration file you may need to change the IP address of your computer to be in the same subnet as that of the default NBG IP address (192.168.1.2). See Appendix C on page 191 for details on how to set up your computers IP address. NBG6515 Users Guide 165 Chapter 25 Maintenance 25.8 Restart Screen System restart allows you to reboot the NBG without turning the power off. Click Maintenance > Restart to open the following screen. Figure 129 Maintenance > Restart Click Restart to have the NBG reboot. This does not affect the NBG's configuration. NBG6515 Users Guide 166 CHAPTER 26 Troubleshooting This chapter offers some suggestions to solve problems you might encounter. The potential problems are divided into the following categories. Power, Hardware Connections, and LEDs NBG Access and Login Internet Access Resetting the NBG to Its Factory Defaults Wireless Router/AP Troubleshooting USB Device Problems 26.1 Power, Hardware Connections, and LEDs The NBG does not turn on. None of the LEDs turn on. 1 Make sure you are using the power adaptor or cord included with the NBG. 2 Make sure the power adaptor or cord is connected to the NBG and plugged in to an appropriate power source. Make sure the power source is turned on. 3 Disconnect and re-connect the power adaptor or cord to the NBG. 4 If the problem continues, contact the vendor. One of the LEDs does not behave as expected. 1 Make sure you understand the normal behavior of the LED. See Section 1.5 on page 14. 2 3 Check the hardware connections. See the Quick Start Guide. Inspect your cables for damage. Contact the vendor to replace any damaged cables. 4 Disconnect and re-connect the power adaptor to the NBG. 5 If the problem continues, contact the vendor. NBG6515 Users Guide 167 Chapter 26 Troubleshooting 26.2 NBG Access and Login I dont know the IP address of my NBG. 1 2 3 4 The default IP address is 192.168.1.1. If you changed the IP address and have forgotten it, you might get the IP address of the NBG by looking up the IP address of the default gateway for your computer. To do this in most Windows computers, click Start > Run, enter cmd, and then enter ipconfig. The IP address of the Default Gateway might be the IP address of the NBG (it depends on the network), so enter this IP address in your Internet browser.Set your device to Router Mode, login (see the Quick Start Guide for instructions) and go to the Device Information table in the Status screen. Your NBGs IP address is available in the Device Information table. If the DHCP setting under LAN information is None, your device has a fixed IP address. If the DHCP setting under LAN information is Client, then your device receives an IP address from a DHCP server on the network. If your NBG is a DHCP client, you can find your IP address from the DHCP server. This information is only available from the DHCP server which allocates IP addresses on your network. Find this information directly from the DHCP server or contact your system administrator for more information. Reset your NBG to change all settings back to their default. This means your current settings are lost. See Section 26.4 on page 171 in the Troubleshooting for information on resetting your NBG. I forgot the password. 1 2 The default password is 1234. If this does not work, you have to reset the device to its factory defaults. See Section 26.4 on page 171. I cannot see or access the Login screen in the Web Configurator. 1 Make sure you are using the correct IP address. The default IP address is 192.168.1.1. If you changed the IP address (Section 14.4 on page 112), use the new IP address. If you changed the IP address and have forgotten it, see the troubleshooting suggestions for I dont know the IP address of my NBG. 2 Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide. NBG6515 Users Guide 168 Chapter 26 Troubleshooting 3 Make sure your Internet browser does not block pop-up windows and has JavaScript and Java enabled. See Appendix A on page 173. 4 Make sure your computer is in the same subnet as the NBG. (If you know that there are routers between your computer and the NBG, skip this step.) If there is a DHCP server on your network, make sure your computer is using a dynamic IP address. See Appendix C on page 191. If there is no DHCP server on your network, make sure your computers IP address is in the same subnet as the NBG. See Appendix C on page 191. 5 6 Reset the device to its factory defaults, and try to access the NBG with the default IP address. See Section 3.3 on page 30. If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions. Advanced Suggestion If your computer is connected to the WAN port or is connected wirelessly, use a computer that is connected to a LAN/ETHERNET port. I can see the Login screen, but I cannot log in to the NBG. 1 Make sure you have entered the password correctly. The default password is 1234. This field is case-sensitive, so make sure [Caps Lock] is not on. 2 This can happen when you fail to log out properly from your last session. Try logging in again after 5 minutes. 3 Disconnect and re-connect the power adaptor or cord to the NBG. 4 If this does not work, you have to reset the device to its factory defaults. See Section 26.4 on page 171. 26.3 Internet Access I cannot access the Internet. 1 Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide. 2 Make sure you entered your ISP account information correctly in the wizard. These fields are case-

sensitive, so make sure [Caps Lock] is not on. NBG6515 Users Guide 169 Chapter 26 Troubleshooting 3 If you are trying to access the Internet wirelessly, make sure the wireless settings in the wireless client are the same as the settings in the AP. 4 Disconnect all the cables from your device, and follow the directions in the Quick Start Guide again. 5 Check your System Operation Mode setting. Select Router if your device routes traffic between a local network and another network such as the Internet. Select Access Point if your device bridges traffic between clients on the same network. Select Universal Repeater Mode if your device is wirelessly connected to an access point or wireless router with Internet access. Your computer should be set to obtain an dynamic IP address. 6 Disconnect all the cables from your device, and follow the directions in the Quick Start Guide again. 7 If the problem continues, contact your ISP. I cannot access the Internet anymore. I had access to the Internet (with the NBG), but my Internet connection is not available anymore. 1 2 3 Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide and Section 1.5 on page 14. Reboot the NBG. If the problem continues, contact your ISP. The Internet connection is slow or intermittent. 1 2 3 4 There might be a lot of traffic on the network. Look at the LEDs, and check Section 1.5 on page 14. If the NBG is sending or receiving a lot of information, try closing some programs that use the Internet, especially peer-to-peer applications. Check the signal strength. If the signal strength is low, try moving the NBG closer to the AP if possible, and look around to see if there are any devices that might be interfering with the wireless network (for example, microwaves, other wireless networks, and so on). Reboot the NBG. If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions. Advanced Suggestions Check the settings for bandwidth management. If it is disabled, you might consider activating it. If it is enabled, you might consider changing the allocations. NBG6515 Users Guide 170 Chapter 26 Troubleshooting Check the settings for QoS. If it is disabled, you might consider activating it. If it is enabled, you might consider raising or lowering the priority for some applications. I set up URL keyword blocking, but I can still access a website that should be blocked. Make sure that you select the Enable URL Keyword Blocking check box in the Content Filtering screen. Make sure that the keywords that you type are listed in the Keyword List. If a keyword that is listed in the Keyword List is not blocked when it is found in a URL, customize the keyword blocking using commands. See the Customizing Keyword Blocking URL Checking section in the Content Filter chapter. 26.4 Resetting the NBG to Its Factory Defaults If you reset the NBG, you lose all of the changes you have made. The NBG re-loads its default settings, and the password resets to 1234. You have to make all of your changes again. You will lose all of your changes when you push the RESET button. To reset the NBG, 1 Make sure the power LED is on. 2 3 Press the RESET button for longer than 1 second to restart/reboot the NBG. Press the RESET button for longer than five seconds to set the NBG back to its factory-default configurations. If the NBG restarts automatically, wait for the NBG to finish restarting, and log in to the Web Configurator. The password is 1234. If the NBG does not restart automatically, disconnect and reconnect the NBGs power. Then, follow the directions above again. 26.5 Wireless Router/AP Troubleshooting I cannot access the NBG or ping any computer from the WLAN (wireless AP or router). 1 Make sure the wireless LAN is enabled on the NBG NBG6515 Users Guide 171 Chapter 26 Troubleshooting 2 Make sure the wireless adapter on the wireless station is working properly. 3 Make sure the wireless adapter installed on your computer is IEEE 802.11 compatible and supports the same wireless standard as the NBG. 4 Make sure your computer (with a wireless adapter installed) is within the transmission range of the NBG. 5 Check that both the NBG and your wireless station are using the same wireless and wireless security settings. 6 Make sure traffic between the WLAN and the LAN is not blocked by the firewall on the NBG. 7 Make sure you allow the NBG to be remotely accessed through the WLAN interface. Check your remote management settings. See the chapter on Wireless LAN in the Users Guide for more information. I cannot access the Web Configurator after I switched to AP mode. 192.168.1.1 is the default IP in Router mode (the default mode). In AP mode the default IP is 192.168.1.2. So, when you switch from Router mode to AP mode, you need to use the AP mode IP to log in. 26.6 USB Device Problems I cannot access or see a USB device that is connected to the NBG. 1 Be sure to install the ZyXEL NetUSB Share Center Utility (for NetUSB functionality) first from the included disc, or download the latest version from the zyxel.com website. 2 Disconnect the problematic USB device, then reconnect it to the NBG. 3 4 5 6 7 Ensure that the USB device has power. Check your cable connections. Restart the NBG by disconnecting the power and then reconnecting it. If the USB device requires a special driver, install the driver from the installation disc that came with the device. After driver installation, reconnect the USB device to the NBG and try to connect to it again with your computer. If the problem persists, contact your vendor. NBG6515 Users Guide 172 Chapter 26 Troubleshooting What kind of USB devices do the NBG support?

1 It is strongly recommended to use version 2.0 or lower USB storage devices (such as memory sticks, USB hard drives) and/or USB devices (such as USB printers). Other USB products are not guaranteed to function properly with the NBG. NBG6515 Users Guide 173

APPENDIX A IP Addresses and Subnetting This appendix introduces IP addresses and subnet masks. IP addresses identify individual devices on a network. Every networking device (including computers, servers, routers, printers, etc.) needs an IP address to communicate across the network. These networking devices are also known as hosts. Subnet masks determine the maximum number of possible hosts on a network. You can also use subnet masks to divide one network into multiple sub-networks. Introduction to IP Addresses One part of the IP address is the network number, and the other part is the host ID. In the same way that houses on a street share a common street name, the hosts on a network share a common network number. Similarly, as each house has its own house number, each host on the network has its own unique identifying number - the host ID. Routers use the network number to send packets to the correct network, while the host ID determines to which host on the network the packets are delivered. Structure An IP address is made up of four parts, written in dotted decimal notation (for example, 192.168.1.1). Each of these four parts is known as an octet. An octet is an eight-digit binary number (for example 11000000, which is 192 in decimal notation). Therefore, each octet has a possible range of 00000000 to 11111111 in binary, or 0 to 255 in decimal. The following figure shows an example IP address in which the first three octets (192.168.1) are the network number, and the fourth octet (16) is the host ID. NBG6515 Users Guide 174 Appendix A IP Addresses and Subnetting Figure 130 Network Number and Host ID How much of the IP address is the network number and how much is the host ID varies according to the subnet mask. Subnet Masks A subnet mask is used to determine which bits are part of the network number, and which bits are part of the host ID (using a logical AND operation). The term subnet is short for sub-network. A subnet mask has 32 bits. If a bit in the subnet mask is a 1 then the corresponding bit in the IP address is part of the network number. If a bit in the subnet mask is 0 then the corresponding bit in the IP address is part of the host ID. The following example shows a subnet mask identifying the network number (in bold text) and host ID of an IP address (192.168.1.2 in decimal). Table 81 IP Address Network Number and Host ID Example 3RD OCTET:

(1) 00000001 11111111 00000001 2ND OCTET:

(168) 10101000 11111111 10101000 11000000 11111111 11000000 1ST OCTET:

(192) IP Address (Binary) Subnet Mask (Binary) Network Number Host ID 4TH OCTET

(2) 00000010 00000000 00000010 By convention, subnet masks always consist of a continuous sequence of ones beginning from the leftmost bit of the mask, followed by a continuous sequence of zeros, for a total number of 32 bits. Subnet masks can be referred to by the size of the network number part (the bits with a 1 value). For example, an 8-bit mask means that the first 8 bits of the mask are ones and the remaining 24 bits are zeroes. NBG6515 Users Guide 175 Appendix A IP Addresses and Subnetting Subnet masks are expressed in dotted decimal notation just like IP addresses. The following examples show the binary and decimal notation for 8-bit, 16-bit, 24-bit and 29-bit subnet masks. Table 82 Subnet Masks BINARY 1ST OCTET 11111111 11111111 11111111 11111111 8-bit mask 16-bit mask 24-bit mask 29-bit mask 2ND OCTET 00000000 11111111 11111111 11111111 3RD OCTET 00000000 00000000 11111111 11111111 4TH OCTET 00000000 00000000 00000000 11111000 DECIMAL 255.0.0.0 255.255.0.0 255.255.255.0 255.255.255.248 Network Size The size of the network number determines the maximum number of possible hosts you can have on your network. The larger the number of network number bits, the smaller the number of remaining host ID bits. An IP address with host IDs of all zeros is the IP address of the network (192.168.1.0 with a 24-bit subnet mask, for example). An IP address with host IDs of all ones is the broadcast address for that network (192.168.1.255 with a 24-bit subnet mask, for example). As these two IP addresses cannot be used for individual hosts, calculate the maximum number of possible hosts in a network as follows:

Table 83 Maximum Host Numbers SUBNET MASK HOST ID SIZE 8 bits 16 bits 24 bits 29 bits 255.0.0.0 255.255.0.0 255.255.255.0 255.255.255.248 24 bits 16 bits 8 bits 3 bits 224 2 216 2 28 2 23 2 MAXIMUM NUMBER OF HOSTS 16777214 65534 254 6 Notation Since the mask is always a continuous number of ones beginning from the left, followed by a continuous number of zeros for the remainder of the 32 bit mask, you can simply specify the number of ones instead of writing the value of each octet. This is usually specified by writing a /

followed by the number of bits in the mask after the address. For example, 192.1.1.0 /25 is equivalent to saying 192.1.1.0 with subnet mask 255.255.255.128. The following table shows some possible subnet masks using both notations. Table 84 Alternative Subnet Mask Notation SUBNET MASK 255.255.255.0 255.255.255.128 255.255.255.192 ALTERNATIVE NOTATION

/24

/25

/26 LAST OCTET

(BINARY) 0000 0000 1000 0000 1100 0000 LAST OCTET

(DECIMAL) 0 128 192 NBG6515 Users Guide 176 Appendix A IP Addresses and Subnetting Table 84 Alternative Subnet Mask Notation (continued) SUBNET MASK 255.255.255.224 255.255.255.240 255.255.255.248 255.255.255.252 ALTERNATIVE NOTATION

/27

/28

/29

/30 LAST OCTET

(BINARY) 1110 0000 1111 0000 1111 1000 1111 1100 LAST OCTET

(DECIMAL) 224 240 248 252 Subnetting You can use subnetting to divide one network into multiple sub-networks. In the following example a network administrator creates two sub-networks to isolate a group of servers from the rest of the company network for security reasons. In this example, the company network address is 192.168.1.0. The first three octets of the address

(192.168.1) are the network number, and the remaining octet is the host ID, allowing a maximum of 28 2 or 254 possible hosts. The following figure shows the company network before subnetting. Figure 131 Subnetting Example: Before Subnetting You can borrow one of the host ID bits to divide the network 192.168.1.0 into two separate sub-

networks. The subnet mask is now 25 bits (255.255.255.128 or /25). The borrowed host ID bit can have a value of either 0 or 1, allowing two subnets; 192.168.1.0 /25 and 192.168.1.128 /25. The following figure shows the company network after subnetting. There are now two sub-

networks, A and B. NBG6515 Users Guide 177 Appendix A IP Addresses and Subnetting Figure 132 Subnetting Example: After Subnetting In a 25-bit subnet the host ID has 7 bits, so each sub-network has a maximum of 27 2 or 126 possible hosts (a host ID of all zeroes is the subnets address itself, all ones is the subnets broadcast address). 192.168.1.0 with mask 255.255.255.128 is subnet A itself, and 192.168.1.127 with mask 255.255.255.128 is its broadcast address. Therefore, the lowest IP address that can be assigned to an actual host for subnet A is 192.168.1.1 and the highest is 192.168.1.126. Similarly, the host ID range for subnet B is 192.168.1.129 to 192.168.1.254. Example: Four Subnets The previous example illustrated using a 25-bit subnet mask to divide a 24-bit address into two subnets. Similarly, to divide a 24-bit address into four subnets, you need to borrow two host ID bits to give four possible combinations (00, 01, 10 and 11). The subnet mask is 26 bits

(11111111.11111111.11111111.11000000) or 255.255.255.192. Each subnet contains 6 host ID bits, giving 26 - 2 or 62 hosts for each subnet (a host ID of all zeroes is the subnet itself, all ones is the subnets broadcast address). Table 85 Subnet 1 IP/SUBNET MASK NETWORK NUMBER IP Address (Decimal) IP Address (Binary) Subnet Mask (Binary) Subnet Address:

192.168.1.0 Broadcast Address:

192.168.1.63 192.168.1. 11000000.10101000.00000001. 11111111.11111111.11111111. Lowest Host ID: 192.168.1.1 Highest Host ID: 192.168.1.62 LAST OCTET BIT VALUE 0 00000000 11000000 NBG6515 Users Guide 178 Appendix A IP Addresses and Subnetting Table 86 Subnet 2 IP/SUBNET MASK NETWORK NUMBER IP Address IP Address (Binary) Subnet Mask (Binary) Subnet Address:

192.168.1.64 Broadcast Address:

192.168.1.127 Table 87 Subnet 3 192.168.1. 11000000.10101000.00000001. 11111111.11111111.11111111. Lowest Host ID: 192.168.1.65 Highest Host ID: 192.168.1.126 IP/SUBNET MASK NETWORK NUMBER IP Address IP Address (Binary) Subnet Mask (Binary) Subnet Address:

192.168.1.128 Broadcast Address:

192.168.1.191 Table 88 Subnet 4 192.168.1. 11000000.10101000.00000001. 11111111.11111111.11111111. Lowest Host ID: 192.168.1.129 Highest Host ID: 192.168.1.190 LAST OCTET BIT VALUE 64 01000000 11000000 LAST OCTET BIT VALUE 128 10000000 11000000 IP/SUBNET MASK NETWORK NUMBER IP Address IP Address (Binary) Subnet Mask (Binary) Subnet Address:

192.168.1.192 Broadcast Address:

192.168.1.255 192.168.1. 11000000.10101000.00000001. 11111111.11111111.11111111. Lowest Host ID: 192.168.1.193 Highest Host ID: 192.168.1.254 LAST OCTET BIT VALUE 192 11000000 11000000 Example: Eight Subnets Similarly, use a 27-bit mask to create eight subnets (000, 001, 010, 011, 100, 101, 110 and 111). The following table shows IP address last octet values for each subnet. SUBNET Table 89 Eight Subnets SUBNET ADDRESS 0 32 64 96 128 160 1 2 3 4 5 6 FIRST ADDRESS 1 33 65 97 129 161 LAST ADDRESS 30 62 94 126 158 190 BROADCAST ADDRESS 31 63 95 127 159 191 NBG6515 Users Guide 179 Appendix A IP Addresses and Subnetting Table 89 Eight Subnets (continued) SUBNET 7 8 SUBNET ADDRESS 192 224 FIRST ADDRESS 193 225 LAST ADDRESS 222 254 BROADCAST ADDRESS 223 255 Subnet Planning The following table is a summary for subnet planning on a network with a 24-bit network number. SUBNET MASK Table 90 24-bit Network Number Subnet Planning NO. BORROWED HOST BITS 1 2 3 4 5 6 7 255.255.255.128 (/25) 255.255.255.192 (/26) 255.255.255.224 (/27) 255.255.255.240 (/28) 255.255.255.248 (/29) 255.255.255.252 (/30) 255.255.255.254 (/31) NO. SUBNETS 2 4 8 16 32 64 128 NO. HOSTS PER SUBNET 126 62 30 14 6 2 1 The following table is a summary for subnet planning on a network with a 16-bit network number. SUBNET MASK Table 91 16-bit Network Number Subnet Planning NO. BORROWED HOST BITS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 255.255.128.0 (/17) 255.255.192.0 (/18) 255.255.224.0 (/19) 255.255.240.0 (/20) 255.255.248.0 (/21) 255.255.252.0 (/22) 255.255.254.0 (/23) 255.255.255.0 (/24) 255.255.255.128 (/25) 255.255.255.192 (/26) 255.255.255.224 (/27) 255.255.255.240 (/28) 255.255.255.248 (/29) 255.255.255.252 (/30) 255.255.255.254 (/31) NO. SUBNETS 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 NO. HOSTS PER SUBNET 32766 16382 8190 4094 2046 1022 510 254 126 62 30 14 6 2 1 NBG6515 Users Guide 180 Appendix A IP Addresses and Subnetting Configuring IP Addresses Where you obtain your network number depends on your particular situation. If the ISP or your network administrator assigns you a block of registered IP addresses, follow their instructions in selecting the IP addresses and the subnet mask. If the ISP did not explicitly give you an IP network number, then most likely you have a single user account and the ISP will assign you a dynamic IP address when the connection is established. If this is the case, it is recommended that you select a network number from 192.168.0.0 to 192.168.255.0. The Internet Assigned Number Authority (IANA) reserved this block of addresses specifically for private use; please do not use any other number unless you are told otherwise. You must also enable Network Address Translation (NAT) on the NBG. Once you have decided on the network number, pick an IP address for your NBG that is easy to remember (for instance, 192.168.1.1) but make sure that no other device on your network is using that IP address. The subnet mask specifies the network number portion of an IP address. Your NBG will compute the subnet mask automatically based on the IP address that you entered. You don't need to change the subnet mask computed by the NBG unless you are instructed to do otherwise. Private IP Addresses Every machine on the Internet must have a unique address. If your networks are isolated from the Internet (running only between two branch offices, for example) you can assign any IP addresses to the hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of IP addresses specifically for private networks:

10.0.0.0 10.255.255.255 172.16.0.0 172.31.255.255 192.168.0.0 192.168.255.255 You can obtain your IP address from the IANA, from an ISP, or it can be assigned from a private network. If you belong to a small organization and your Internet access is through an ISP, the ISP can provide you with the Internet addresses for your local networks. On the other hand, if you are part of a much larger organization, you should consult your network administrator for the appropriate IP addresses. Regardless of your particular situation, do not create an arbitrary IP address; always follow the guidelines above. For more information on address assignment, please refer to RFC 1597, Address Allocation for Private Internets and RFC 1466, Guidelines for Management of IP Address Space. IP Address Conflicts Each device on a network must have a unique IP address. Devices with duplicate IP addresses on the same network will not be able to access the Internet or other resources. The devices may also be unreachable through the network. Conflicting Computer IP Addresses Example More than one device can not use the same IP address. In the following example computer A has a static (or fixed) IP address that is the same as the IP address that a DHCP server assigns to NBG6515 Users Guide 181 Appendix A IP Addresses and Subnetting computer B which is a DHCP client. Neither can access the Internet. This problem can be solved by assigning a different static IP address to computer A or setting computer A to obtain an IP address automatically. Figure 133 Conflicting Computer IP Addresses Example Conflicting Router IP Addresses Example Since a router connects different networks, it must have interfaces using different network numbers. For example, if a router is set between a LAN and the Internet (WAN), the routers LAN and WAN addresses must be on different subnets. In the following example, the LAN and WAN are on the same subnet. The LAN computers cannot access the Internet because the router cannot route between networks. Figure 134 Conflicting Router IP Addresses Example Conflicting Computer and Router IP Addresses Example More than one device can not use the same IP address. In the following example, the computer and the routers LAN port both use 192.168.1.1 as the IP address. The computer cannot access the Internet. This problem can be solved by assigning a different IP address to the computer or the routers LAN port. NBG6515 Users Guide 182 Appendix A IP Addresses and Subnetting Figure 135 Conflicting Computer and Router IP Addresses Example NBG6515 Users Guide 183 APPENDIX B Legal Information Copyright Copyright 2015 by ZyXEL Communications Corporation. The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL Communications Corporation. Published by ZyXEL Communications Corporation. All rights reserved. Disclaimers ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein. Neither does it convey any license under its patent rights nor the patent rights of others. ZyXEL further reserves the right to make changes in any products described herein without notice. This publication is subject to change without notice. Your use of the NBG is subject to the terms and conditions of any related service providers. Trademarks Trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners. Regulatory Notice and Statement UNITED STATES OF AMERICA 1 2 1 2 3 4 equipment. The following information applies if you use the product within USA area. FCC EMC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference, and this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used according to the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which is found by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment or devices. Connect the equipment to an outlet other than the receiver's. Consult a dealer or an experienced radio/TV technician for assistance. FCC Radiation Exposure Statement This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must be at least 20 cm from the user and must not be co-located or operating in conjunction with any other antenna or transmitter. CANADA The following information applies if you use the product within Canada area. Industry Canada ICES statement CAN ICES-3 (B)/NMB-3(B) NBG6515 Users Guide 184 Appendix B Legal Information Industry Canada RSS-GEN & RSS-210 statement This device complies with Industry Canadas licence-exempt RSSs. Operation is subject to the following two conditions:(1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device. This radio transmitter (2468C-NBG6515) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. If you use the produce with 5G wireless function, the following attention shall be paid that,

(i) the device for operation is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems;

(ii) the maximum antenna gain permitted for devices in the bands 5470-5725 MHz shall comply with the e.i.r.p. limit; and

(iii) the maximum antenna gain permitted for devices in the band 5725-5825 MHz shall comply with the e.i.r.p. limits specified for point-

to-point and non point-to-point operation as appropriate. Le prsent appareil est conforme aux CNR dIndustrie Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes : (1) lappareil ne doit pas produire de brouillage; (2) lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. Le prsent metteur radio (2468C-NBG6515) de modle s'il fait partie du matriel de catgorieI) a t approuv par Industrie Canada pour fonctionner avec les types d'antenne numrs ci-dessous et ayant un gain admissible maximal et l'impdance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est suprieur au gain maximal indiqu, sont strictement interdits pour l'exploitation de l'metteur. Si vous utilisez le produit avec 5G sans fil fonction, suivant l'attention doit tre verse que,

(i) les dispositifs fonctionnant sont rservs uniquement pour une utilisation lintrieur afin de rduire les risques de brouillage prjudiciable aux systmes de satellites mobiles utilisant les mmes canaux;

(ii) le gain maximal dantenne permis pour les dispositifs utilisant les bandes et 5470-5725 MHz doit se conformer la limite de p.i.r.e.;

(iii) le gain maximal dantenne permis (pour les dispositifs utilisant la bande 5725-5825 MHz) doit se conformer la limite de p.i.r.e. spcifie pour lexploitation point point et non point point, selon le cas. Industry Canada radiation exposure statement This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. Dclaration dexposition aux radiations:

Cet quipement est conforme aux limites dexposition aux rayonnements IC tablies pour un environnement non contrl.Cet quipement doit tre install et utilis avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps. EUROPEAN UNION The following information applies if you use the product within the European Union. Declaration of Conformity with Regard to EU Directive 1999/5/EC (R&TTE Directive) Compliance information for 2.4GHz and/or 5GHz wireless products relevant to the EU and other Countries following the EU Directive 1999/

5/EC (R&TTE).

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(Spanish) etina

(Czech) Por medio de la presente ZyXEL declara que el equipo cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE. ZyXEL tmto prohlauje, e tento zazen je ve shod se zkladnmi poadavky a dalmi pslunmi ustanovenmi smrnice 1999/5/EC. Dansk (Danish) Undertegnede ZyXEL erklrer herved, at flgende udstyr udstyr overholder de vsentlige krav og vrige relevante krav i direktiv 1999/5/EF. Deutsch

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(Greek) English Franais

(French) Hrvatski

(Croatian) Hiermit erklrt ZyXEL, dass sich das Gert Ausstattung in bereinstimmung mit den grundlegenden Anforderungen und den brigen einschlgigen Bestimmungen der Richtlinie 1999/5/EU befindet. Kesolevaga kinnitab ZyXEL seadme seadmed vastavust direktiivi 1999/5/E phinuetele ja nimetatud direktiivist tulenevatele teistele asjakohastele stetele. ZyXEL 1999/5/C. Hereby, ZyXEL declares that this equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. Par la prsente ZyXEL dclare que l'appareil quipements est conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/EC. ZyXEL ovime izjavljuje da je radijska oprema tipa u skladu s Direktivom 1999/5/EC. NBG6515 Users Guide 185 Appendix B Legal Information slenska

(Icelandic) Italiano

(Italian) Hr me lsir, ZyXEL v yfir a essi bnaur er samrmi vi grunnkrfur og nnur vieigandi kvi tilskipunar 1999/5/EC. Con la presente ZyXEL dichiara che questo attrezzatura conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE. Latvieu valoda

(Latvian) Ar o ZyXEL deklar, ka iekrtas atbilst Direktvas 1999/5/EK btiskajm prasbm un citiem ar to saisttajiem noteikumiem. Lietuvi kalba

(Lithuanian) iuo ZyXEL deklaruoja, kad is ranga atitinka esminius reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas. Magyar

(Hungarian) Alulrott, ZyXEL nyilatkozom, hogy a berendezs megfelel a vonatkoz alapvet kvetelmnyeknek s az 1999/5/EK irnyelv egyb elrsainak. Malti (Maltese) Hawnhekk, ZyXEL, jiddikjara li dan tagmir jikkonforma mal-tiijiet essenzjali u ma provvedimenti orajn relevanti li hemm fid-Dirrettiva 1999/5/EC. Nederlands

(Dutch) Hierbij verklaart ZyXEL dat het toestel uitrusting in overeenstemming is met de essentile eisen en de andere relevante bepalingen van richtlijn 1999/5/EC. Polski (Polish) Niniejszym ZyXEL owiadcza, e sprzt jest zgodny z zasadniczymi wymogami oraz pozostaymi stosownymi postanowieniami Dyrektywy 1999/5/EC. Portugus

(Portuguese) ZyXEL declara que este equipamento est conforme com os requisitos essenciais e outras disposies da Directiva 1999/5/EC. Romn

(Romanian) Slovenina

(Slovak) Slovenina

(Slovene) Suomi

(Finnish) Svenska

(Swedish) Prin prezenta, ZyXEL declar c acest echipament este n conformitate cu cerinele eseniale i alte prevederi relevante ale Directivei 1999/5/EC. ZyXEL tmto vyhlasuje, e zariadenia spa zkladn poiadavky a vetky prslun ustanovenia Smernice 1999/5/EC. ZyXEL izjavlja, da je ta oprema v skladu z bistvenimi zahtevami in ostalimi relevantnimi doloili direktive 1999/5/EC. ZyXEL vakuuttaa tten ett laitteet tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sit koskevien direktiivin muiden ehtojen mukainen. Hrmed intygar ZyXEL att denna utrustning str I verensstmmelse med de vsentliga egenskapskrav och vriga relevanta bestmmelser som framgr av direktiv 1999/5/EC. Norsk

(Norwegian) Erklrer herved ZyXEL at dette utstyret er I samsvar med de grunnleggende kravene og andre relevante bestemmelser I direktiv 1999/5/EF. National Restrictions This product may be used in all EU countries (and other countries following the EU Directive 2014/53/EU) without any limitation except for the countries mentioned below:

Ce produit peut tre utilis dans tous les pays de lUE (et dans tous les pays ayant transposs la directive 2014/53/UE) sans aucune limitation, except pour les pays mentionns ci-dessous:

Questo prodotto utilizzabile in tutte i paesi EU (ed in tutti gli altri paesi che seguono le direttiva 2014/53/UE) senza nessuna limitazione, eccetto per i paesii menzionati di seguito:

Das Produkt kann in allen EU Staaten ohne Einschrnkungen eingesetzt werden (sowie in anderen Staaten die der Richtlinie 2014/53/EU folgen) mit Aunahme der folgenden aufgefhrten Staaten:

In the majority of the EU and other European countries, the 2.4GHz and 5GHz bands have been made available for the use of wireless local area networks (LANs). Later in this document you will find an overview of countries in which additional restrictions or requirements or both are applicable. The requirements for any country may evolve. ZyXEL recommends that you check with the local authorities for the latest status of their national regulations for both the 2.4GHz and 5GHz wireless LANs. The following countries have restrictions and/or requirements in addition to those given in the table labeled Overview of Regulatory Requirements for Wireless LANs:. Belgium The Belgian Institute for Postal Services and Telecommunications (BIPT) must be notified of any outdoor wireless link having a range exceeding 300 meters. Please check http://www.bipt.be for more details. Draadloze verbindingen voor buitengebruik en met een reikwijdte van meer dan 300 meter dienen aangemeld te worden bij het Belgisch Instituut voor postdiensten en telecommunicatie (BIPT). Zie http://www.bipt.be voor meer gegevens. Les liaisons sans fil pour une utilisation en extrieur dune distance suprieure 300 mtres doivent tre notifies lInstitut Belge des services Postaux et des Tlcommunications (IBPT). Visitez http://www.ibpt.be pour de plus amples dtails. Denmark In Denmark, the band 5150 - 5350 MHz is also allowed for outdoor usage. I Danmark m frekvensbndet 5150 - 5350 ogs anvendes udendrs. Italy This product meets the National Radio Interface and the requirements specified in the National Frequency Allocation Table for Italy. Unless this wireless LAN product is operating within the boundaries of the owner's property, its use requires a general authorization. Please check http://www.sviluppoeconomico.gov.it/ for more details. Questo prodotto conforme alla specifiche di Interfaccia Radio Nazionali e rispetta il Piano Nazionale di ripartizione delle frequenze in Italia. Se non viene installato all 'interno del proprio fondo, l'utilizzo di prodotti Wireless LAN richiede una Autorizzazione Generale. Consultare http://www.sviluppoeconomico.gov.it/ per maggiori dettagli. Latvia NBG6515 Users Guide 186 Appendix B Legal Information The outdoor usage of the 2.4 GHz band requires an authorization from the Electronic Communications Office. Please check http://

www.esd.lv for more details. 2.4 GHz frekvenu joslas izmantoanai rpus telpm nepiecieama atauja no Elektronisko sakaru direkcijas. Vairk informcijas: http://

www.esd.lv. Notes:

1. Although Norway, Switzerland and Liechtenstein are not EU member states, the EU Directive 2014/53/EU has also been implemented in those countries. 2. The regulatory limits for maximum output power are specified in EIRP. The EIRP level (in dBm) of a device can be calculated by adding the gain of the antenna used(specified in dBi) to the output power available at the connector (specified in dBm). List of national codes COUNTRY Austria Belgium Bulgaria Croatia Cyprus Czech Republic Denmark Estonia Finland France Germany Greece Hungary Iceland Ireland Italy Latvia Safety Warnings ISO 3166 2 LETTER CODE COUNTRY ISO 3166 2 LETTER CODE AT BE BG HR CY CR DK EE FI FR DE GR HU IS IE IT LV Liechtenstein Lithuania Luxembourg Malta Netherlands Norway Poland Portugal Romania Serbia Slovakia Slovenia Spain Sweden Switzerland Turkey United Kingdom LI LT LU MT NL NO PL PT RO RS SK SI ES SE CH TR GB Do NOT use this product near water, for example, in a wet basement or near a swimming pool. Do NOT expose your device to dampness, dust or corrosive liquids. Do NOT store things on the device. Do NOT install, use, or service this device during a thunderstorm. There is a remote risk of electric shock from lightning. Connect ONLY suitable accessories to the device. Do NOT open the device or unit. Opening or removing covers can expose you to dangerous high voltage points or other risks. ONLY qualified service personnel should service or disassemble this device. Please contact your vendor for further information. Make sure to connect the cables to the correct ports. Place connecting cables carefully so that no one will step on them or stumble over them. Always disconnect all cables from this device before servicing or disassembling. Use ONLY an appropriate power adaptor or cord for your device. Connect it to the right supply voltage (for example, 110V AC in North America or 230V AC in Europe). adaptor or cord. Do NOT allow anything to rest on the power adaptor or cord and do NOT place the product where anyone can walk on the power If the power adaptor or cord is damaged, remove it from the device and the power source. Do NOT use the device if the power adaptor or cord is damaged as it might cause electrocution. Do NOT attempt to repair the power adaptor or cord. Contact your local vendor to order a new one. Do not use the device outside, and make sure all the connections are indoors. There is a remote risk of electric shock from lightning. CAUTION: RISK OF EXPLOSION IF BATTERY (on the motherboard) IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. Dispose them at the applicable collection point for the recycling of electrical and electronic equipment. For detailed information about recycling of this product, please contact your local city office, your household waste disposal service or the store where you purchased the product. Do NOT obstruct the device ventilation slots, as insufficient airflow may harm your device. Antenna Warning! This device meets ETSI and FCC certification requirements when using the included antenna(s). Only use the included antenna(s). If you wall mount your device, make sure that no electrical lines, gas or water pipes will be damaged. The PoE (Power over Ethernet) devices that supply or receive power and their connected Ethernet cables must all be completely indoors. This product is for indoor use only (utilisation intrieure exclusivement). FOR COUNTRY CODE SELECTION USAGE (WLAN DEVICES) Note: The country code selection is for non-US model only and is not available to all US model. Per FCC regulation, all Wi-Fi product marketed in US must fixed to US operation channels only. The following warnings apply if product is disconnect device:

A readily accessible disconnect device shall be incorporated external to the equipment; and/or The socket-outlet shall be installed near the equipment and shall be easily accessible. NBG6515 Users Guide 187 Appendix B Legal Information Environment statement ErP (Energy-related Products) ZyXEL products put on the EU market in compliance with the requirement of the European Parliament and the Council published Directive 2009/125/EC establishing a framework for the setting of ecodesign requirements for energy-related products (recast), so called as "ErP Directive (Energy-related Products directive) as well as ecodesign requirement laid down in applicable implementing measures, power consumption has satisfied regulation requirements which are:

Network standby power consumption < 12W, and/or Off mode power consumption < 0.5W, and/or Standby mode power consumption < 0.5W. Wireless setting, please refer to "Wireless" chapter for more detail. WEEE Directive Your product is marked with this symbol, which is known as the WEEE mark. WEEE stands for Waste Electronics and Electrical Equipment. It means that used electrical and electronic products should not be mixed with general waste. Used electrical and electronic equipment should be treated separately.

"INFORMAZIONI AGLI UTENTI"

Ai sensi della Direttiva 2012/19/UE del Parlamento europeo e del Consiglio, del 4 luglio 2012, sui rifiuti di apparecchiature elettriche ed elettroniche (RAEE) Il simbolo del cassonetto barrato riportato sullapparecchiatura o sulla sua confezione indica che il prodotto alla fine della propria vita utile deve essere raccolto separatamente dagli altri rifiuti. La raccolta differenziata della presente apparecchiatura giunta a fine vita e organizzata e gestita dal produttore. Lutente che vorra disfarsi della presente apparecchiatura dovra quindi contattare il produttore e seguire il sistema che questo ha adottato per consentire la raccolta separata dellapparecchiatura giunta a fine vita. Ladeguata raccolta differenziata per lavvio successivo dellapparecchiatura dismessa al riciclaggio, al trattamento e allo smaltimento ambientalmente compatibile contribuisce ad evitare possibili effetti negativi sullambiente e sulla salute e favorisce il reimpiego e/o riciclo dei materiali di cui e composta lapparecchiatura. Lo smaltimento abusivo del prodotto da parte del detentore comporta lapplicazione delle sanzioni amministrative previste dalla normativa vigente."

NBG6515 Users Guide 188 Appendix B Legal Information Environmental Product Declaration NBG6515 Users Guide 189 Appendix B Legal Information MPE 1mW/cm2 : 0.1996 mW/cm2 Viewing Certifications Go to http://www.zyxel.com to view this products documentation and certifications. ZyXEL Limited Warranty ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in material or workmanship for a specific period (the Warranty Period) from the date of purchase. The Warranty Period varies by region. Check with your vendor and/or the authorized ZyXEL local distributor for details about the Warranty Period of this product. During the warranty period, and upon proof of purchase, should the product have indications of failure due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or replace the defective products or components without charge for either parts or labor, and to whatever extent it shall deem necessary to restore the product or components to proper operating condition. Any replacement will consist of a new or re-manufactured functionally equivalent product of equal or higher value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product has been modified, misused, tampered with, damaged by an act of God, or subjected to abnormal working conditions. Note Repair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This warranty is in lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in no event be held liable for indirect or consequential damages of any kind to the purchaser. To obtain the services of this warranty, contact your vendor. You may also refer to the warranty policy for the region in which you bought the device at http://www.zyxel.com/web/support_warranty_info.php. Registration Register your product online to receive e-mail notices of firmware upgrades and information at www.zyxel.com. Open Source Licenses This product contains in part some free software distributed under GPL license terms and/or GPL like licenses. Open source licenses are provided with the firmware package. You can download the latest firmware at www.zyxel.com. If you cannot find it there, contact your vendor or ZyXEL Technical Support at support@zyxel.com.tw. To obtain the source code covered under those Licenses, please contact your vendor or ZyXEL Technical Support at support@zyxel.com.tw. NBG6515 Users Guide 190 APPENDIX C Setting Up Your Computers IP Address Note: Your specific NBG may not support all of the operating systems described in this appendix. See the product specifications for more information about which operating systems are supported. This appendix shows you how to configure the IP settings on your computer in order for it to be able to communicate with the other devices on your network. Windows Vista/XP/2000, Mac OS 9/

OS X, and all versions of UNIX/LINUX include the software components you need to use TCP/IP on your computer. If you manually assign IP information instead of using a dynamic IP, make sure that your networks computers have IP addresses that place them in the same subnet. In this appendix, you can set up an IP address for:

Windows XP/NT/2000 on page 191 Windows Vista on page 195 Windows 7 on page 199 Mac OS X: 10.3 and 10.4 on page 203 Mac OS X: 10.5 and 10.6 on page 206 Linux: Ubuntu 8 (GNOME) on page 209 Linux: openSUSE 10.3 (KDE) on page 213 Windows XP/NT/2000 The following example uses the default Windows XP display theme but can also apply to Windows 2000 and Windows NT. 1 Click Start > Control Panel. NBG6515 Users Guide 191 Appendix C Setting Up Your Computers IP Address 2 In the Control Panel, click the Network Connections icon. 3 Right-click Local Area Connection and then select Properties. 4 On the General tab, select Internet Protocol (TCP/IP) and then click Properties. NBG6515 Users Guide 192 Appendix C Setting Up Your Computers IP Address 5 The Internet Protocol TCP/IP Properties window opens. NBG6515 Users Guide 193 Appendix C Setting Up Your Computers IP Address 6 7 8 Select Obtain an IP address automatically if your network administrator or ISP assigns your IP address dynamically. Select Use the following IP Address and fill in the IP address, Subnet mask, and Default gateway fields if you have a static IP address that was assigned to you by your network administrator or ISP. You may also have to enter a Preferred DNS server and an Alternate DNS server, if that information was provided. Click OK to close the Internet Protocol (TCP/IP) Properties window. Click OK to close the Local Area Connection Properties window. Verifying Settings 1 2 Click Start > All Programs > Accessories > Command Prompt. In the Command Prompt window, type "ipconfig" and then press [ENTER]. You can also go to Start > Control Panel > Network Connections, right-click a network connection, click Status and then click the Support tab to view your IP address and connection information. NBG6515 Users Guide 194 Appendix C Setting Up Your Computers IP Address Windows Vista This section shows screens from Windows Vista Professional. 1 Click Start > Control Panel. 2 In the Control Panel, click the Network and Internet icon. 3 Click the Network and Sharing Center icon. 4 Click Manage network connections. NBG6515 Users Guide 195 Appendix C Setting Up Your Computers IP Address 5 Right-click Local Area Connection and then select Properties. Note: During this procedure, click Continue whenever Windows displays a screen saying that it needs your permission to continue. 6 Select Internet Protocol Version 4 (TCP/IPv4) and then select Properties. NBG6515 Users Guide 196 Appendix C Setting Up Your Computers IP Address 7 The Internet Protocol Version 4 (TCP/IPv4) Properties window opens. NBG6515 Users Guide 197 Appendix C Setting Up Your Computers IP Address 8 Select Obtain an IP address automatically if your network administrator or ISP assigns your IP address dynamically. Select Use the following IP Address and fill in the IP address, Subnet mask, and Default gateway fields if you have a static IP address that was assigned to you by your network administrator or ISP. You may also have to enter a Preferred DNS server and an Alternate DNS server, if that information was provided.Click Advanced. 9 Click OK to close the Internet Protocol (TCP/IP) Properties window. 10 Click OK to close the Local Area Connection Properties window. Verifying Settings 1 2 Click Start > All Programs > Accessories > Command Prompt. In the Command Prompt window, type "ipconfig" and then press [ENTER]. You can also go to Start > Control Panel > Network Connections, right-click a network connection, click Status and then click the Support tab to view your IP address and connection information. NBG6515 Users Guide 198 Appendix C Setting Up Your Computers IP Address Windows 7 This section shows screens from Windows 7 Enterprise. 1 Click Start > Control Panel. 2 In the Control Panel, click View network status and tasks under the Network and Internet category. 3 Click Change adapter settings. 4 Double click Local Area Connection and then select Properties. NBG6515 Users Guide 199 Appendix C Setting Up Your Computers IP Address Note: During this procedure, click Continue whenever Windows displays a screen saying that it needs your permission to continue. 5 Select Internet Protocol Version 4 (TCP/IPv4) and then select Properties. NBG6515 Users Guide 200 Appendix C Setting Up Your Computers IP Address 6 The Internet Protocol Version 4 (TCP/IPv4) Properties window opens. NBG6515 Users Guide 201 Appendix C Setting Up Your Computers IP Address 7 8 9 Select Obtain an IP address automatically if your network administrator or ISP assigns your IP address dynamically. Select Use the following IP Address and fill in the IP address, Subnet mask, and Default gateway fields if you have a static IP address that was assigned to you by your network administrator or ISP. You may also have to enter a Preferred DNS server and an Alternate DNS server, if that information was provided. Click Advanced if you want to configure advanced settings for IP, DNS and WINS. Click OK to close the Internet Protocol (TCP/IP) Properties window. Click OK to close the Local Area Connection Properties window. Verifying Settings 1 2 3 Click Start > All Programs > Accessories > Command Prompt. In the Command Prompt window, type "ipconfig" and then press [ENTER]. The IP settings are displayed as follows. NBG6515 Users Guide 202 Appendix C Setting Up Your Computers IP Address Mac OS X: 10.3 and 10.4 The screens in this section are from Mac OS X 10.4 but can also apply to 10.3. 1 Click Apple > System Preferences. 2 In the System Preferences window, click the Network icon. NBG6515 Users Guide 203 Appendix C Setting Up Your Computers IP Address 3 When the Network preferences pane opens, select Built-in Ethernet from the network connection type list, and then click Configure. 4 For dynamically assigned settings, select Using DHCP from the Configure IPv4 list in the TCP/IP tab. NBG6515 Users Guide 204 Appendix C Setting Up Your Computers IP Address 5 For statically assigned settings, do the following:

From the Configure IPv4 list, select Manually. In the IP Address field, type your IP address. In the Subnet Mask field, type your subnet mask. In the Router field, type the IP address of your device. 6 Click Apply Now and close the window. Verifying Settings Check your TCP/IP properties by clicking Applications > Utilities > Network Utilities, and then selecting the appropriate Network Interface from the Info tab. NBG6515 Users Guide 205 Appendix C Setting Up Your Computers IP Address Figure 136 Mac OS X 10.4: Network Utility Mac OS X: 10.5 and 10.6 The screens in this section are from Mac OS X 10.5 but can also apply to 10.6. 1 Click Apple > System Preferences. 2 In System Preferences, click the Network icon. NBG6515 Users Guide 206 Appendix C Setting Up Your Computers IP Address 3 When the Network preferences pane opens, select Ethernet from the list of available connection types. 4 From the Configure list, select Using DHCP for dynamically assigned settings. NBG6515 Users Guide 207 Appendix C Setting Up Your Computers IP Address 5 For statically assigned settings, do the following:

From the Configure list, select Manually. In the IP Address field, enter your IP address. In the Subnet Mask field, enter your subnet mask. In the Router field, enter the IP address of your NBG. 6 Click Apply and close the window. Verifying Settings Check your TCP/IP properties by clicking Applications > Utilities > Network Utilities, and then selecting the appropriate Network interface from the Info tab. NBG6515 Users Guide 208 Appendix C Setting Up Your Computers IP Address Figure 137 Mac OS X 10.5: Network Utility Linux: Ubuntu 8 (GNOME) This section shows you how to configure your computers TCP/IP settings in the GNU Object Model Environment (GNOME) using the Ubuntu 8 Linux distribution. The procedure, screens and file locations may vary depending on your specific distribution, release version, and individual configuration. The following screens use the default Ubuntu 8 installation. Note: Make sure you are logged in as the root administrator. Follow the steps below to configure your computer IP address in GNOME:

1 Click System > Administration > Network. 2 When the Network Settings window opens, click Unlock to open the Authenticate window. (By default, the Unlock button is greyed out until clicked.) You cannot make changes to your configuration unless you first enter your admin password. NBG6515 Users Guide 209 Appendix C Setting Up Your Computers IP Address 3 In the Authenticate window, enter your admin account name and password then click the Authenticate button. 4 In the Network Settings window, select the connection that you want to configure, then click Properties. NBG6515 Users Guide 210 Appendix C Setting Up Your Computers IP Address 5 The Properties dialog box opens. In the Configuration list, select Automatic Configuration (DHCP) if you have a dynamic IP address. In the Configuration list, select Static IP address if you have a static IP address. Fill in the IP address, Subnet mask, and Gateway address fields. 6 7 Click OK to save the changes and close the Properties dialog box and return to the Network Settings screen. If you know your DNS server IP address(es), click the DNS tab in the Network Settings window and then enter the DNS server information in the fields provided. NBG6515 Users Guide 211 Appendix C Setting Up Your Computers IP Address 8 Click the Close button to apply the changes. Verifying Settings Check your TCP/IP properties by clicking System > Administration > Network Tools, and then selecting the appropriate Network device from the Devices tab. The Interface Statistics column shows data if your connection is working properly. NBG6515 Users Guide 212 Appendix C Setting Up Your Computers IP Address Figure 138 Ubuntu 8: Network Tools Linux: openSUSE 10.3 (KDE) This section shows you how to configure your computers TCP/IP settings in the K Desktop Environment (KDE) using the openSUSE 10.3 Linux distribution. The procedure, screens and file locations may vary depending on your specific distribution, release version, and individual configuration. The following screens use the default openSUSE 10.3 installation. Note: Make sure you are logged in as the root administrator. Follow the steps below to configure your computer IP address in the KDE:

1 Click K Menu > Computer > Administrator Settings (YaST). NBG6515 Users Guide 213 Appendix C Setting Up Your Computers IP Address 2 When the Run as Root - KDE su dialog opens, enter the admin password and click OK. 3 When the YaST Control Center window opens, select Network Devices and then click the Network Card icon. NBG6515 Users Guide 214 Appendix C Setting Up Your Computers IP Address 4 When the Network Settings window opens, click the Overview tab, select the appropriate connection Name from the list, and then click the Configure button. 5 When the Network Card Setup window opens, click the Address tab NBG6515 Users Guide 215 Appendix C Setting Up Your Computers IP Address Figure 139 openSUSE 10.3: Network Card Setup 6 7 8 Select Dynamic Address (DHCP) if you have a dynamic IP address. Select Statically assigned IP Address if you have a static IP address. Fill in the IP address, Subnet mask, and Hostname fields. Click Next to save the changes and close the Network Card Setup window. If you know your DNS server IP address(es), click the Hostname/DNS tab in Network Settings and then enter the DNS server information in the fields provided. NBG6515 Users Guide 216 Appendix C Setting Up Your Computers IP Address 9 Click Finish to save your settings and close the window. Verifying Settings Click the KNetwork Manager icon on the Task bar to check your TCP/IP properties. From the Options sub-menu, select Show Connection Information. Figure 140 openSUSE 10.3: KNetwork Manager When the Connection Status - KNetwork Manager window opens, click the Statistics tab to see if your connection is working properly. NBG6515 Users Guide 217 Appendix C Setting Up Your Computers IP Address Figure 141 openSUSE: Connection Status - KNetwork Manager NBG6515 Users Guide 218 APPENDIX D Wireless LANs Wireless LAN Topologies This section discusses ad-hoc and infrastructure wireless LAN topologies. Ad-hoc Wireless LAN Configuration The simplest WLAN configuration is an independent (Ad-hoc) WLAN that connects a set of computers with wireless adapters (A, B, C). Any time two or more wireless adapters are within range of each other, they can set up an independent network, which is commonly referred to as an ad-hoc network or Independent Basic Service Set (IBSS). The following diagram shows an example of notebook computers using wireless adapters to form an ad-hoc wireless LAN. Figure 142 Peer-to-Peer Communication in an Ad-hoc Network BSS A Basic Service Set (BSS) exists when all communications between wireless clients or between a wireless client and a wired network client go through one access point (AP). Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is enabled, wireless client A and B can access the wired network and communicate with each other. When Intra-BSS is disabled, wireless client A and B can still access the wired network but cannot communicate with each other. NBG6515 Users Guide 219 Appendix D Wireless LANs Figure 143 Basic Service Set ESS An Extended Service Set (ESS) consists of a series of overlapping BSSs, each containing an access point, with each access point connected together by a wired network. This wired connection between APs is called a Distribution System (DS). This type of wireless LAN topology is called an Infrastructure WLAN. The Access Points not only provide communication with the wired network but also mediate wireless network traffic in the immediate neighborhood. An ESSID (ESS IDentification) uniquely identifies each ESS. All access points and their associated wireless clients within the same ESS must have the same ESSID in order to communicate. NBG6515 Users Guide 220 Appendix D Wireless LANs Figure 144 Infrastructure WLAN Channel RTS/CTS A channel is the radio frequency(ies) used by wireless devices to transmit and receive data. Channels available depend on your geographical area. You may have a choice of channels (for your region) so you should use a channel different from an adjacent AP (access point) to reduce interference. Interference occurs when radio signals from different access points overlap causing interference and degrading performance. Adjacent channels partially overlap however. To avoid interference due to overlap, your AP should be on a channel at least five channels away from a channel that an adjacent AP is using. For example, if your region has 11 channels and an adjacent AP is using channel 1, then you need to select a channel between 6 or 11. A hidden node occurs when two stations are within range of the same access point, but are not within range of each other. The following figure illustrates a hidden node. Both stations (STA) are within range of the access point (AP) or wireless gateway, but out-of-range of each other, so they cannot "hear" each other, that is they do not know if the channel is currently being used. Therefore, they are considered hidden from each other. NBG6515 Users Guide 221 Appendix D Wireless LANs Figure 145 RTS/CTS When station A sends data to the AP, it might not know that the station B is already using the channel. If these two stations send data at the same time, collisions may occur when both sets of data arrive at the AP at the same time, resulting in a loss of messages for both stations. RTS/CTS is designed to prevent collisions due to hidden nodes. An RTS/CTS defines the biggest size data frame you can send before an RTS (Request To Send)/CTS (Clear to Send) handshake is invoked. When a data frame exceeds the RTS/CTS value you set, the station that wants to transmit this frame must first send an RTS (Request To Send) message to the AP for permission to send it. The AP then responds with a CTS (Clear to Send) message to all other stations within its range to notify them to defer their transmission. It also reserves and confirms with the requesting station the time frame for the requested transmission. Stations can send frames smaller than the specified RTS/CTS directly to the AP without the RTS

(Request To Send)/CTS (Clear to Send) handshake. You should only configure RTS/CTS if the possibility of hidden nodes exists on your network and the "cost" of resending large frames is more than the extra network overhead involved in the RTS

(Request To Send)/CTS (Clear to Send) handshake. If the RTS/CTS value is greater than the Fragmentation Threshold value (see next), then the RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmented before they reach RTS/CTS size. Note: Enabling the RTS Threshold causes redundant network overhead that could negatively affect the throughput performance instead of providing a remedy. Fragmentation Threshold A Fragmentation Threshold is the maximum data fragment size that can be sent in the wireless network before the AP will fragment the packet into smaller data frames. A large Fragmentation Threshold is recommended for networks not prone to interference while you should set a smaller threshold for busy networks or networks that are prone to interference. If the Fragmentation Threshold value is smaller than the RTS/CTS value (see previously) you set then the RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmented before they reach RTS/CTS size. NBG6515 Users Guide 222 Appendix D Wireless LANs Preamble Type Preamble is used to signal that data is coming to the receiver. Short and long refer to the length of the synchronization field in a packet. Short preamble increases performance as less time sending preamble means more time for sending data. All IEEE 802.11 compliant wireless adapters support long preamble, but not all support short preamble. Use long preamble if you are unsure what preamble mode other wireless devices on the network support, and to provide more reliable communications in busy wireless networks. Use short preamble if you are sure all wireless devices on the network support it, and to provide more efficient communications. Use the dynamic setting to automatically use short preamble when all wireless devices on the network support it, otherwise the NBG uses long preamble. Note: The wireless devices MUST use the same preamble mode in order to communicate. Wireless Security Overview Wireless security is vital to your network to protect wireless communication between wireless clients, access points and the wired network. Wireless security methods available on the NBG are data encryption, wireless client authentication, restricting access by device MAC address and hiding the NBG identity. The following figure shows the relative effectiveness of these wireless security methods available on your NBG. Table 92 Wireless Security Levels SECURITY LEVEL Least Secure SECURITY TYPE Unique SSID (Default) Unique SSID with Hide SSID Enabled MAC Address Filtering WEP Encryption IEEE802.1x EAP with RADIUS Server Authentication Wi-Fi Protected Access (WPA) WPA2 Most Secure Note: You must enable the same wireless security settings on the NBG and on all wireless clients that you want to associate with it. NBG6515 Users Guide 223 Appendix D Wireless LANs IEEE 802.1x In June 2001, the IEEE 802.1x standard was designed to extend the features of IEEE 802.11 to support extended authentication as well as providing additional accounting and control features. It is supported by Windows XP and a number of network devices. Some advantages of IEEE 802.1x are:

User based identification that allows for roaming. Support for RADIUS (Remote Authentication Dial In User Service, RFC 2138, 2139) for centralized user profile and accounting management on a network RADIUS server. Support for EAP (Extensible Authentication Protocol, RFC 2486) that allows additional authentication methods to be deployed with no changes to the access point or the wireless clients. RADIUS RADIUS is based on a client-server model that supports authentication, authorization and accounting. The access point is the client and the server is the RADIUS server. The RADIUS server handles the following tasks:

Authentication Determines the identity of the users. Authorization Determines the network services available to authenticated users once they are connected to the network. Accounting Keeps track of the clients network activity. RADIUS is a simple package exchange in which your AP acts as a message relay between the wireless client and the network RADIUS server. Types of RADIUS Messages The following types of RADIUS messages are exchanged between the access point and the RADIUS server for user authentication:

Access-Request Sent by an access point requesting authentication. Access-Reject Sent by a RADIUS server rejecting access. Access-Accept Sent by a RADIUS server allowing access. Access-Challenge Sent by a RADIUS server requesting more information in order to allow access. The access point sends a proper response from the user and then sends another Access-Request message. The following types of RADIUS messages are exchanged between the access point and the RADIUS server for user accounting:

NBG6515 Users Guide 224 Appendix D Wireless LANs Accounting-Request Sent by the access point requesting accounting. Accounting-Response Sent by the RADIUS server to indicate that it has started or stopped accounting. In order to ensure network security, the access point and the RADIUS server use a shared secret key, which is a password, they both know. The key is not sent over the network. In addition to the shared key, password information exchanged is also encrypted to protect the network from unauthorized access. Types of EAP Authentication This section discusses some popular authentication types: EAP-MD5, EAP-TLS, EAP-TTLS, PEAP and LEAP. Your wireless LAN device may not support all authentication types. EAP (Extensible Authentication Protocol) is an authentication protocol that runs on top of the IEEE 802.1x transport mechanism in order to support multiple types of user authentication. By using EAP to interact with an EAP-compatible RADIUS server, an access point helps a wireless station and a RADIUS server perform authentication. The type of authentication you use depends on the RADIUS server and an intermediary AP(s) that supports IEEE 802.1x. For EAP-TLS authentication type, you must first have a wired connection to the network and obtain the certificate(s) from a certificate authority (CA). A certificate (also called digital IDs) can be used to authenticate users and a CA issues certificates and guarantees the identity of each certificate owner. EAP-MD5 (Message-Digest Algorithm 5) MD5 authentication is the simplest one-way authentication method. The authentication server sends a challenge to the wireless client. The wireless client proves that it knows the password by encrypting the password with the challenge and sends back the information. Password is not sent in plain text. However, MD5 authentication has some weaknesses. Since the authentication server needs to get the plaintext passwords, the passwords must be stored. Thus someone other than the authentication server may access the password file. In addition, it is possible to impersonate an authentication server as MD5 authentication method does not perform mutual authentication. Finally, MD5 authentication method does not support data encryption with dynamic session key. You must configure WEP encryption keys for data encryption. EAP-TLS (Transport Layer Security) With EAP-TLS, digital certifications are needed by both the server and the wireless clients for mutual authentication. The server presents a certificate to the client. After validating the identity of the server, the client sends a different certificate to the server. The exchange of certificates is done in the open before a secured tunnel is created. This makes user identity vulnerable to passive attacks. A digital certificate is an electronic ID card that authenticates the senders identity. However, to implement EAP-TLS, you need a Certificate Authority (CA) to handle certificates, which imposes a management overhead. NBG6515 Users Guide 225 Appendix D Wireless LANs EAP-TTLS (Tunneled Transport Layer Service) EAP-TTLS is an extension of the EAP-TLS authentication that uses certificates for only the server-

side authentications to establish a secure connection. Client authentication is then done by sending username and password through the secure connection, thus client identity is protected. For client authentication, EAP-TTLS supports EAP methods and legacy authentication methods such as PAP, CHAP, MS-CHAP and MS-CHAP v2. PEAP (Protected EAP) Like EAP-TTLS, server-side certificate authentication is used to establish a secure connection, then use simple username and password methods through the secured connection to authenticate the clients, thus hiding client identity. However, PEAP only supports EAP methods, such as EAP-MD5, EAP-MSCHAPv2 and EAP-GTC (EAP-Generic Token Card), for client authentication. EAP-GTC is implemented only by Cisco. LEAP LEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of IEEE 802.1x. Dynamic WEP Key Exchange The AP maps a unique key that is generated with the RADIUS server. This key expires when the wireless connection times out, disconnects or reauthentication times out. A new WEP key is generated each time reauthentication is performed. If this feature is enabled, it is not necessary to configure a default encryption key in the wireless security configuration screen. You may still configure and store keys, but they will not be used while dynamic WEP is enabled. Note: EAP-MD5 cannot be used with Dynamic WEP Key Exchange For added security, certificate-based authentications (EAP-TLS, EAP-TTLS and PEAP) use dynamic keys for data encryption. They are often deployed in corporate environments, but for public deployment, a simple user name and password pair is more practical. The following table is a comparison of the features of authentication types. Table 93 Comparison of EAP Authentication Types EAP-TLS Yes Yes Yes Yes Strong Hard No Mutual Authentication Certificate Client Certificate Server Dynamic Key Exchange Credential Integrity Deployment Difficulty Client Identity Protection EAP-MD5 No No No No None Easy No EAP-TTLS Yes Optional Yes Yes Strong Moderate Yes PEAP Yes Optional Yes Yes Strong Moderate Yes LEAP Yes No No Yes Moderate Moderate No NBG6515 Users Guide 226 Appendix D Wireless LANs WPA and WPA2 Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. WPA2 (IEEE 802.11i) is a wireless security standard that defines stronger encryption, authentication and key management than WPA. Key differences between WPA or WPA2 and WEP are improved data encryption and user authentication. If both an AP and the wireless clients support WPA2 and you have an external RADIUS server, use WPA2 for stronger data encryption. If you don't have an external RADIUS server, you should use WPA2-PSK (WPA2-Pre-Shared Key) that only requires a single (identical) password entered into each access point, wireless gateway and wireless client. As long as the passwords match, a wireless client will be granted access to a WLAN. If the AP or the wireless clients do not support WPA2, just use WPA or WPA-PSK depending on whether you have an external RADIUS server or not. Select WEP only when the AP and/or wireless clients do not support WPA or WPA2. WEP is less secure than WPA or WPA2. Encryption WPA improves data encryption by using Temporal Key Integrity Protocol (TKIP), Message Integrity Check (MIC) and IEEE 802.1x. WPA2 also uses TKIP when required for compatibility reasons, but offers stronger encryption than TKIP with Advanced Encryption Standard (AES) in the Counter mode with Cipher block chaining Message authentication code Protocol (CCMP). TKIP uses 128-bit keys that are dynamically generated and distributed by the authentication server. AES (Advanced Encryption Standard) is a block cipher that uses a 256-bit mathematical algorithm called Rijndael. They both include a per-packet key mixing function, a Message Integrity Check

(MIC) named Michael, an extended initialization vector (IV) with sequencing rules, and a re-keying mechanism. WPA and WPA2 regularly change and rotate the encryption keys so that the same encryption key is never used twice. The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then sets up a key hierarchy and management system, using the PMK to dynamically generate unique data encryption keys to encrypt every data packet that is wirelessly communicated between the AP and the wireless clients. This all happens in the background automatically. The Message Integrity Check (MIC) is designed to prevent an attacker from capturing data packets, altering them and resending them. The MIC provides a strong mathematical function in which the receiver and the transmitter each compute and then compare the MIC. If they do not match, it is assumed that the data has been tampered with and the packet is dropped. By generating unique data encryption keys for every data packet and by creating an integrity checking mechanism (MIC), with TKIP and AES it is more difficult to decrypt data on a Wi-Fi network than WEP and difficult for an intruder to break into the network. The encryption mechanisms used for WPA(2) and WPA(2)-PSK are the same. The only difference between the two is that WPA(2)-PSK uses a simple common password, instead of user-specific credentials. The common-password approach makes WPA(2)-PSK susceptible to brute-force NBG6515 Users Guide 227 Appendix D Wireless LANs password-guessing attacks but its still an improvement over WEP as it employs a consistent, single, alphanumeric password to derive a PMK which is used to generate unique temporal encryption keys. This prevent all wireless devices sharing the same encryption keys. (a weakness of WEP) User Authentication WPA and WPA2 apply IEEE 802.1x and Extensible Authentication Protocol (EAP) to authenticate wireless clients using an external RADIUS database. WPA2 reduces the number of key exchange messages from six to four (CCMP 4-way handshake) and shortens the time required to connect to a network. Other WPA2 authentication features that are different from WPA include key caching and pre-authentication. These two features are optional and may not be supported in all wireless devices. Key caching allows a wireless client to store the PMK it derived through a successful authentication with an AP. The wireless client uses the PMK when it tries to connect to the same AP and does not need to go with the authentication process again. Pre-authentication enables fast roaming by allowing the wireless client (already connecting to an AP) to perform IEEE 802.1x authentication with another AP before connecting to it. Wireless Client WPA Supplicants A wireless client supplicant is the software that runs on an operating system instructing the wireless client how to use WPA. At the time of writing, the most widely available supplicant is the WPA patch for Windows XP, Funk Software's Odyssey client. The Windows XP patch is a free download that adds WPA capability to Windows XP's built-in "Zero Configuration" wireless client. However, you must run Windows XP to use it. WPA(2) with RADIUS Application Example To set up WPA(2), you need the IP address of the RADIUS server, its port number (default is 1812), and the RADIUS shared secret. A WPA(2) application example with an external RADIUS server looks as follows. "A" is the RADIUS server. "DS" is the distribution system. 1 2 3 4 The AP passes the wireless client's authentication request to the RADIUS server. The RADIUS server then checks the user's identification against its database and grants or denies network access accordingly. A 256-bit Pairwise Master Key (PMK) is derived from the authentication process by the RADIUS server and the client. The RADIUS server distributes the PMK to the AP. The AP then sets up a key hierarchy and management system, using the PMK to dynamically generate unique data encryption keys. The keys are used to encrypt every data packet that is wirelessly communicated between the AP and the wireless clients. NBG6515 Users Guide 228 Appendix D Wireless LANs Figure 146 WPA(2) with RADIUS Application Example WPA(2)-PSK Application Example A WPA(2)-PSK application looks as follows. 1 2 3 4 First enter identical passwords into the AP and all wireless clients. The Pre-Shared Key (PSK) must consist of between 8 and 63 ASCII characters or 64 hexadecimal characters (including spaces and symbols). The AP checks each wireless client's password and allows it to join the network only if the password matches. The AP and wireless clients generate a common PMK (Pairwise Master Key). The key itself is not sent over the network, but is derived from the PSK and the SSID. The AP and wireless clients use the TKIP or AES encryption process, the PMK and information exchanged in a handshake to create temporal encryption keys. They use these keys to encrypt data exchanged between them. NBG6515 Users Guide 229 Appendix D Wireless LANs Figure 147 WPA(2)-PSK Authentication Security Parameters Summary Refer to this table to see what other security parameters you should configure for each authentication method or key management protocol type. MAC address filters are not dependent on how you configure these security features. Table 94 Wireless Security Relational Matrix AUTHENTICATION METHOD/ KEY MANAGEMENT PROTOCOL Open ENCRYPTIO N METHOD None No ENTER MANUAL KEY Open Shared WPA WPA-PSK WPA2 WPA2-PSK Antenna Overview WEP WEP TKIP/AES TKIP/AES TKIP/AES TKIP/AES No Yes Yes No Yes Yes No Yes No Yes IEEE 802.1X Disable Enable without Dynamic WEP Key Enable with Dynamic WEP Key Enable without Dynamic WEP Key Disable Enable with Dynamic WEP Key Enable without Dynamic WEP Key Disable Enable Disable Enable Disable An antenna couples RF signals onto air. A transmitter within a wireless device sends an RF signal to the antenna, which propagates the signal through the air. The antenna also operates in reverse by capturing RF signals from the air. Positioning the antennas properly increases the range and coverage area of a wireless LAN. NBG6515 Users Guide 230 Appendix D Wireless LANs Antenna Characteristics Frequency An antenna in the frequency of 2.4GHz or 5GHz is needed to communicate efficiently in a wireless LAN Radiation Pattern A radiation pattern is a diagram that allows you to visualize the shape of the antennas coverage area. Antenna Gain Antenna gain, measured in dB (decibel), is the increase in coverage within the RF beam width. Higher antenna gain improves the range of the signal for better communications. For an indoor site, each 1 dB increase in antenna gain results in a range increase of approximately 2.5%. For an unobstructed outdoor site, each 1dB increase in gain results in a range increase of approximately 5%. Actual results may vary depending on the network environment. Antenna gain is sometimes specified in dBi, which is how much the antenna increases the signal power compared to using an isotropic antenna. An isotropic antenna is a theoretical perfect antenna that sends out radio signals equally well in all directions. dBi represents the true gain that the antenna provides. Types of Antennas for WLAN There are two types of antennas used for wireless LAN applications. Omni-directional antennas send the RF signal out in all directions on a horizontal plane. The coverage area is torus-shaped (like a donut) which makes these antennas ideal for a room environment. With a wide coverage area, it is possible to make circular overlapping coverage areas with multiple access points. Directional antennas concentrate the RF signal in a beam, like a flashlight does with the light from its bulb. The angle of the beam determines the width of the coverage pattern. Angles typically range from 20 degrees (very directional) to 120 degrees (less directional). Directional antennas are ideal for hallways and outdoor point-to-point applications. Positioning Antennas In general, antennas should be mounted as high as practically possible and free of obstructions. In point-topoint application, position both antennas at the same height and in a direct line of sight to each other to attain the best performance. For omni-directional antennas mounted on a table, desk, and so on, point the antenna up. For omni-directional antennas mounted on a wall or ceiling, point the antenna down. For a single AP application, place omni-directional antennas as close to the center of the coverage area as possible. For directional antennas, point the antenna in the direction of the desired coverage area. NBG6515 Users Guide 231 APPENDIX E Common Services The following table lists some commonly-used services and their associated protocols and port numbers. For a comprehensive list of port numbers, ICMP type/code numbers and services, visit the IANA (Internet Assigned Number Authority) web site. Name: This is a short, descriptive name for the service. You can use this one or create a different one, if you like. Protocol: This is the type of IP protocol used by the service. If this is TCP/UDP, then the service uses the same port number with TCP and UDP. If this is USER-DEFINED, the Port(s) is the IP protocol number, not the port number. Port(s): This value depends on the Protocol. Please refer to RFC 1700 for further information about port numbers. If the Protocol is TCP, UDP, or TCP/UDP, this is the IP port number. If the Protocol is USER, this is the IP protocol number. Description: This is a brief explanation of the applications that use this service or the situations in which this service is used. Table 95 Commonly Used Services NAME AH

(IPSEC_TUNNEL) AIM/New-ICQ PROTOCOL User-Defined TCP AUTH BGP BOOTP_CLIENT BOOTP_SERVER CU-SEEME DNS TCP TCP UDP UDP TCP UDP TCP/UDP ESP

(IPSEC_TUNNEL) User-Defined FINGER FTP H.323 TCP TCP TCP TCP PORT(S) 51 5190 113 179 68 67 7648 24032 53 50 79 20 21 1720 DESCRIPTION The IPSEC AH (Authentication Header) tunneling protocol uses this service. AOLs Internet Messenger service. It is also used as a listening port by ICQ. Authentication protocol used by some servers. Border Gateway Protocol. DHCP Client. DHCP Server. A popular videoconferencing solution from White Pines Software. Domain Name Server, a service that matches web names (for example www.zyxel.com) to IP numbers. The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol uses this service. Finger is a UNIX or Internet related command that can be used to find out if a user is logged on. File Transfer Program, a program to enable fast transfer of files, including large files that may not be possible by e-mail. NetMeeting uses this protocol. NBG6515 Users Guide 232 Appendix E Common Services Table 95 Commonly Used Services (continued) NAME HTTP PROTOCOL TCP PORT(S) 80 HTTPS ICMP TCP User-Defined ICQ IGMP (MULTICAST) UDP User-Defined 443 1 4000 2 500 6667 1863 5190 144 2049 119 UDP TCP/UDP TCP TCP TCP UDP TCP IKE IRC MSN Messenger NEW-ICQ NEWS NFS NNTP PING POP3 PPTP User-Defined 1 TCP TCP 110 1723 PPTP_TUNNEL

(GRE) User-Defined 47 RCMD REAL_AUDIO TCP TCP REXEC RLOGIN RTELNET RTSP TCP TCP TCP TCP/UDP SFTP TCP 512 7070 514 513 107 554 115 DESCRIPTION Hyper Text Transfer Protocol - a client/

server protocol for the world wide web. HTTPS is a secured http session often used in e-commerce. Internet Control Message Protocol is often used for diagnostic or routing purposes. This is a popular Internet chat program. Internet Group Management Protocol is used when sending packets to a specific group of hosts. The Internet Key Exchange algorithm is used for key distribution and management. This is another popular Internet chat program. Microsoft Networks messenger service uses this protocol. An Internet chat program. A protocol for news groups. Network File System - NFS is a client/

server distributed file service that provides transparent file sharing for network environments. Network News Transport Protocol is the delivery mechanism for the USENET newsgroup service. Packet INternet Groper is a protocol that sends out ICMP echo requests to test whether or not a remote host is reachable. Post Office Protocol version 3 lets a client computer get e-mail from a POP3 server through a temporary connection (TCP/IP or other). Point-to-Point Tunneling Protocol enables secure transfer of data over public networks. This is the control channel. PPTP (Point-to-Point Tunneling Protocol) enables secure transfer of data over public networks. This is the data channel. Remote Command Service. A streaming audio service that enables real time sound over the web. Remote Execution Daemon. Remote Login. Remote Telnet. The Real Time Streaming (media control) Protocol (RTSP) is a remote control for multimedia on the Internet. Simple File Transfer Protocol. NBG6515 Users Guide 233 Appendix E Common Services Table 95 Commonly Used Services (continued) NAME SMTP PROTOCOL TCP PORT(S) 25 SNMP SNMP-TRAPS SQL-NET TCP/UDP TCP/UDP TCP SSH STRM WORKS SYSLOG TACACS TELNET TCP/UDP UDP UDP UDP TCP TFTP UDP 161 162 1521 22 1558 514 49 23 69 VDOLIVE TCP 7000 DESCRIPTION Simple Mail Transfer Protocol is the message-exchange standard for the Internet. SMTP enables you to move messages from one e-mail server to another. Simple Network Management Program. Traps for use with the SNMP (RFC:1215). Structured Query Language is an interface to access data on many different types of database systems, including mainframes, midrange systems, UNIX systems and network servers. Secure Shell Remote Login Program. Stream Works Protocol. Syslog allows you to send system logs to a UNIX server. Login Host Protocol used for (Terminal Access Controller Access Control System). Telnet is the login and terminal emulation protocol common on the Internet and in UNIX environments. It operates over TCP/

IP networks. Its primary function is to allow users to log into remote host systems. Trivial File Transfer Protocol is an Internet file transfer protocol similar to FTP, but uses the UDP (User Datagram Protocol) rather than TCP (Transmission Control Protocol). Another videoconferencing solution. NBG6515 Users Guide 234 A Address Assignment 102 Advanced Encryption Standard See AES. AES 227 alternative subnet mask notation 176 antenna directional 231 gain 231 omni-directional 231 AP 12 AP (access point) 221 AP Mode menu 60, 67 status screen 58 AP+Bridge 12 B Bandwidth management overview 136 priority 138 Basic Service Set, See BSS 219 Bridge/Repeater 12 bridged APs, security 83 BSS 219 C CA 225 Certificate Authority See CA. certifications viewing 190 Channel 52, 59, 60, 66 channel 81, 221 interference 221 Index Index CIFS 153 Common Internet File System, see CIFS Configuration restore 165 content filtering 134 by keyword (in URL) 134 by web feature 134 copyright 184 CPU usage 53, 60, 66 CTS (Clear to Send) 222 D Daylight saving 163 DDNS 123 see also Dynamic DNS service providers 123 DHCP 32, 114 DHCP server see also Dynamic Host Configuration Protocol DHCP server 112, 114 DHCP table 32 DHCP client information DHCP status DHCP Unique IDentifier 98 DHCPv6 DHCP Unique IDentifier 98 Digital Living Network Alliance 152 disclaimer 184 DLNA 151, 152 indexing 155 overview 151 rescan 155 DLNA-compliant client 152 DNS 116 DNS Server 102 DNS server 116 documentation related 2 NBG6515 Users Guide 235 Index G General wireless LAN screen 83, 85 Guide Quick Start 2 H hidden node 221 I IANA 181 IBSS 219 IGMP 103 see also Internet Group Multicast Protocol version IGMP version 103 Independent Basic Service Set See IBSS 219 initialization vector (IV) 227 interfaces 96 Internet Assigned Numbers Authority See IANA 181 Internet Group Multicast Protocol 103 Internet Protocol version 6, see IPv6 IP Address 113, 118, 119 IP alias 112 IP Pool 114 IPv6 96 link-local address 97 prefix 96 prefix delegation 97 prefix length 96 stateless autoconfiguration 97 Domain Name System 116 Domain Name System. See DNS. DUID 98 duplex setting 53, 60 Dynamic DNS 123 Dynamic Host Configuration Protocol 114 dynamic WEP key exchange 226 DynDNS 123 DynDNS see also DDNS 123 E EAP Authentication 225 encryption 82, 227 key 82 WPA compatible 82 ESS 220 ESSID 171 Extended Service Set, See ESS 220 F FCC interference statement 184 file sharing 152 access right 155, 156 example 156 FTP 155 overview 152 Samba 154 user account 154, 156 Windows Explorer 154 work group 154 Firewall ICMP packets 129, 130 Firmware upload 163 file extension using HTTP firmware version 52, 59 fragmentation threshold 222 L LAN 111 IP pool setup 112 LAN overview 111 NBG6515 Users Guide 236 LAN setup 111 LAN TCP/IP 112 Language 166 Link type 53, 60, 66 Local Area Network 111 M MAC 89 MAC address 81, 102 cloning 102 MAC address filter 81 MAC address filtering 89 MAC filter 89 managing the device Index O operating mode 12 other documentation 2 P Pairwise Master Key (PMK) 227, 229 Point-to-Point Protocol over Ethernet 105 Point-to-Point Tunneling Protocol 107 Port forwarding 119 default server 118 local server 119 good habits 13 using the web configurator. See web configurator. using the wireless switch. using the WPS. See WPS. MBSSID 12 Media access control 89 media client 151 media file 151 media server 151 overview 151 meida file play 151 Memory usage 53, 60, 66 Message Integrity Check (MIC) 227 mode 12 Multicast 103 IGMP 103 N NAT 117, 118, 181 how it works 117 overview 117 see also Network Address Translation NAT Traversal 144 Navigation Panel 53, 60, 67 navigation panel 53, 60, 67 Network Address Translation 117, 118 port speed 53, 60, 67 PPPoE 105 dial-up connection PPTP 107 preamble mode 223 prefix delegation 97 product registration 190 PSK 227 Q Quality of Service (QoS) 91 Quick Start Guide 2 R RADIUS 224 message types 224 messages 224 shared secret key 225 registration product 190 related documentation 2 Remote management and NAT 142 limitations 142 system timeout 143 Reset button 30 NBG6515 Users Guide 237 Reset the device 30 Restore configuration 165 Roaming 90 RTS (Request To Send) 222 threshold 221, 222 RTS/CTS Threshold 81, 90 S Samba 153 Scheduling 93 Server Message Block, see SMB Service and port numbers 130, 133, 141 Service Set 47, 84 Service Set IDentification 47, 84 Service Set IDentity. See SSID. SMB 153 SSID 47, 52, 59, 60, 66, 81, 84 Static DHCP 115 Static Route 125 Status 50 subnet 174 Subnet Mask 113 subnet mask 175 subnetting 177 Summary DHCP table 32 Packet statistics 33 Wireless station status 34, 35 System General Setup 160 System restart 166 T TCP/IP configuration 114 Temporal Key Integrity Protocol (TKIP) 227 Time setting 162 trademarks 184 trigger port 120 Trigger port forwarding 120 example 121 process 121 Index U Universal 63 Universal Plug and Play 144 Application 144 Security issues 145 Universal Repeater 63, 67 UPnP 144 URL Keyword Blocking 135 USB media sharing 151 User Name 124 V VPN 107 W WAN (Wide Area Network) 101 WAN advanced 109 WAN MAC address 102 warranty 190 note 190 Web Configurator how to access 26 Overview 26 web configurator 12 WEP Encryption 68, 70, 87, 88 WEP encryption 86 WEP key 86 Wi-Fi Protected Access 227 windows media player 151 Wireless association list 34, 35 wireless channel 171 wireless client WPA supplicants 228 wireless LAN 171 wireless LAN scheduling 93 Wireless network basic guidelines 80 channel 81 encryption 82 example 80 NBG6515 Users Guide 238 Index MAC address filter 81 overview 80 security 81 SSID 81 Wireless security 81 overview 81 type 81 wireless security 171, 223 wireless switch 12 Wireless tutorial 72 WPS 72 Wizard setup 17 WLAN interference 221 security parameters 230 WLAN 2.4G 34 WLAN 5G 35 work group 153 name 153 Windows 153 WPA 227 key caching 228 pre-authentication 228 user authentication 228 vs WPA-PSK 227 wireless client supplicant 228 with RADIUS application example 228 WPA compatible 82 WPA2 227 user authentication 228 vs WPA2-PSK 227 wireless client supplicant 228 with RADIUS application example 228 WPA2-Pre-Shared Key 227 WPA2-PSK 227 application example 229 WPA-PSK 227 application example 229 WPS 12 NBG6515 Users Guide 239