FCC ID: KA2IR400A1 RangeBooster G Router

Table of Contents Table of Contents Package Contents ..............................................................4 System Requirements ....................................................4 Introduction ....................................................................5 Features .........................................................................6 Hardware Overview ........................................................7 Connections .............................................................7 Buttons .....................................................................8 LEDs ........................................................................9 Installation .........................................................................10 Before you Begin ..........................................................10 Wireless Installation Considerations ............................ 11 Connecting to a Cable/DSL/Satellite Modem ...............1

Connecting to Another Router ......................................13 Configuration ....................................................................15 Web-based Configuration Utility ...................................15 Setup Wizard .........................................................16 Internet Setup ........................................................

Dynamic (Cable) ................................................

PPPoE (DSL) .....................................................3 PPTP ..................................................................4 LTP...................................................................5 Big Pond ............................................................6 Static (assigned by ISP) .....................................7 Russia PPTP ......................................................8 Russia PPPoE (DSL) .........................................9 D-Link DIR-400 User Manual Wireless Setup .......................................................30 Enabling WEP Wireless Security ...........................34 Enabling WPA, WPA, WPA/WPA Wireless Security ..................................................................35 Enabling WPA, WPA, WPA/WPA Wireless Security for a RADIUS Server ..............................................36 Adding a Wireless Device through WPS ................37 Adding a Wireless Device through WPS (Wi-Fi Protected Setup) ....................................................38 Adding a Wireless Device through WPS (PIN) ......39 Adding a Wireless Device through WPS (PBC) .....40 LAN Setup ..............................................................41 DHCP Server Settings ...........................................4

DHCP Reservation .................................................43 Time and Date .......................................................44 Parental Control .....................................................45 Port Forwarding .....................................................46 Application Rules ...................................................47 Access Control .......................................................48 Firewall & DMZ - DMZ Host ...................................49 Firewall & DMZ - Firewall Rules .............................50 Advanced Wireless ................................................51 Advanced Network .................................................5

Routing ...................................................................53 Device Administration ............................................54 Save and Restore ..................................................55

Table of Contents Firmware Update ...................................................56 DDNS Settings .......................................................57 System Check ........................................................58 Schedules ..............................................................59 Log Settings ...........................................................60 Log Settings - Email Notification ............................61 Device Information .................................................6

Log .........................................................................63 Statistics .................................................................64 Active Session ......................................................64 Wireless .................................................................65 Help ........................................................................66 Wireless Security ..............................................................67 What is WEP? ..............................................................67 Configuring WEP ..........................................................68 What is WPA? ..............................................................69 Configuring WPA-PSK and WPA2-PSK .......................70 Configuring WPA/WPA2-PSK .......................................71 Configuring WPA, WPA2, & WPA/WPA2 (RADIUS) .....7

Connecting to a Wireless Network .................................73 Using Windows XP .....................................................73 Configure WEP.............................................................74 Configuring WPA-PSK..................................................76 Setting Up Wi-Fi Protection .............................................78

(WCN 2.0 in Windows Vista) ............................................78 Initial Router Configuration for Wi-Fi Protection ...........78 Setting Up a Configured Router ...................................79 Changing the Computer Name and Joining a Workgroup ........................................................................80 Configuring the IP Address in Vista ...............................82 Connecting to a Secured Wireless Network (WEP, WPA-PSK & WPA2-PSK) ..................................................85 Connecting to an Unsecured Wireless Network ............89 Troubleshooting ...............................................................93 Wireless Basics ................................................................97 What is Wireless? ........................................................98 Wireless Setup Tips ...................................................100 Wireless Modes ..........................................................101 Networking Basics .........................................................102 Checking your IP address ..........................................10

Assigning a static IP address .....................................103 Technical Specifications ................................................104 Contacting Technical Support .......................................106 Warranty ..........................................................................107 Registration ..................................................................... 112 D-Link DIR-400 User Manual 3 Section 1 - Product Overview Package Contents D-Link DIR-400 Wireless Router Power Adapter Ethernet Cable Manual and Warranty on CD Note: Using a power supply with a different voltage rating than the one included with the DIR-400 will cause damage and void the warranty for this product. Note: Always attach the power cord plug to the power supply, before inserting the power cord and connected power supply to the wall outlet. System Requirements Ethernet-based Cable or DSL Modem Computers with Windows, Macintosh, or Linux-based operating systems with an installed Ethernet adapter Internet Explorer Version 6.0 or Mozilla Firefox 1.5 above (for configuration) D-Link DIR-400 User Manual 4 Section 1 - Product Overview Introduction D-Link, the industry leader in wireless networking, introduces another breakthrough in wireless connectivity. The D-Link DIR-400 Wireless 108 Router is capable of transferring data with a maximum wireless signal rate of up to DIR-400 Wireless 108 Router is capable of transferring data with a maximum wireless signal rate of up to Wireless 108 Router is capable of transferring data with a maximum wireless signal rate of up to 108Mbps* through its 108Mbps Turbo mode*, and is also compatible with 80.11b/g. The D-Link DIR-400 Wireless Router also offers four Ethernet ports to support multiple computers. The advanced wireless technology built into the DIR-400 Wireless Router offers data transfer speeds with a maximum wireless signal rate of up to 108Mbps* through its wireless channels, allowing streaming videos and other high bandwidth applications such as online gaming to operate without the hassle of Ethernet cables. The ability to use high bandwidth applications also makes streaming real-time programs more enjoyable and more efficient. With the DIR-400 Wireless Routers built-in advanced firewall, threats of hackers penetrating your network are minimized. Some firewall features include functions that allow or disallow certain ports to be open for certain applications. Time scheduling can be established as a firewall rule so that specific ports will be open at certain times and closed at other times. Features like content filtering, MAC filtering, URL blocking, and domain blocking are useful tools to prevent other unwanted intruders from connecting to your network or browsing restricted sites. The easy-to-use configuration wizard takes only minutes to set up and guides users step-by-step through configuring the DIR-400. With its versatile features and a user-friendly interface, the DIR-400 Wireless 108 Router provides an enhanced networking experience.

* 108Mbps Turbo mode operates only with other D-Link 108 G products. Maximum wireless signal rate derived from IEEE Standard 802.11g specifications. Maximum wireless signal rate derived from IEEE Standard 802.11g specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead, lower actual data throughput rate. Environmental conditions will adversely affect wireless signal range. D-Link DIR-400 User Manual 5 Section 1 - Product Overview Features Faster Wireless Networking - The DIR-400 provides an up to 108Mbps* wireless connection with other D-Link 108 devices. This capability allows users to participate in real-time activities online, such as video streaming, online gaming, and real-time audio. The performance of this 108 wireless router gives you the freedom of wireless networking at speeds x faster than 80.11g and 10x faster than 80.11b. Compatible with 802.11b and 802.11g Devices - The DIR-400 is still fully compatible with the IEEE 80.11g and 80.11b standards, so it can connect with existing 80.11g and 80.11b PCI, USB and Cardbus adapters. Advanced Firewall Features - The Web-based user interface displays a number of advanced network management features including:

Content Filtering - Easily applied content filtering based on MAC Address, URL, and/or Domain Name. Filter Scheduling - These filters can be scheduled to be active on certain days or for a duration of hours or minutes. Secure Multiple/Concurrent Sessions - The DIR-400 can pass through VPN sessions. It supports multiple and concurrent IPSec and PPTP sessions, so users behind the DIR-400 can securely access corporate networks. User-friendly Setup Wizard - Through its easy-to-use Web-based user interface, the DIR-400 lets you control what information is accessible to those on the wireless network, whether from the Internet or from your companys server. Configure your router to your specific settings within minutes.

* 108Mbps Turbo mode operates only with other D-Link 108 G products. Maximum wireless signal rate derived from IEEE Standard 802.11g specifications. 108Mbps Turbo mode operates only with other D-Link 108 G products. Maximum wireless signal rate derived from IEEE Standard 802.11g specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead, lower actual data throughput rate. Environmental conditions will adversely affect wireless signal range. D-Link DIR-400 User Manual 6 Section 1 - Product Overview Hardware Overview Connections Connector for the Power Adapter. LAN Ports Connects to Ethernet devices such as computers, switches, and hubs. The Auto MDI/MDIX WAN port is the connection for the Ethernet cable to the Cable or DSL modem. D-Link DIR-400 User Manual 7 Section 1 - Product Overview Hardware Overview Buttons Pressing the Reset Button restores the router to its original factory default settings. The Wi-Fi Protected Setup (WPS) button is used to connect the router to other devices that support Push Button Configuration (PBC). D-Link DIR-400 User Manual 8 Section 1 - Product Overview Hardware Overview LEDs WAN LED A solid light indicates connection on the WAN port. This LED blinks during data transmission. WLAN LED A solid light indicates that the wireless segment is ready. This LED blinks during wireless data transmission. Local Network LEDs A solid light indicates a connection to an Ethernet-enabled computer on ports 1-4. This LED blinks during data transmission. Power LED A solid light indicates a proper connection to the power supply. Status LED A blinking light indicates that the DIR-400 is ready. D-Link DIR-400 User Manual 9 Section  - Installation Installation This section will walk you through the installation process. Placement of the router is very important. Do not place the router in an enclosed area such as a closet, cabinet, or in the attic or garage. Before you Begin Please configure the router with the computer that was last connected directly to your modem. Also, you can only use the Ethernet port on your modem when connecting the modem to the router. If you were using the modems USB connection before using the router, then you must turn off your modem, disconnect the USB cable and connect an Ethernet cable to the WAN port on the router, and then turn the modem back on. In some cases, you may need to call your ISP to change connection types (USB to Ethernet). If you have DSL and are connecting via PPPoE, make sure you disable or uninstall any PPPoE software such as WinPoet, Broadjump, or Ethernet 300 from your computer or you will not be able to connect to the Internet. D-Link DIR-400 User Manual 10 Section  - Installation Wireless Installation Considerations The D-Link wireless router lets you access your network using a wireless connection from virtually anywhere within the operating range of your wireless network. Keep in mind, however, that the number, thickness and location of walls, ceilings, or other objects that the wireless signals must pass through may limit the range. Typical ranges vary depending on the types of materials and background RF (radio frequency) noise in your home or business. The key to maximizing wireless range is to follow these basic guidelines:

1. Keep the number of walls and ceilings between the D-Link router and other network devices to a minimum - each wall or ceiling can reduce your adapters range from 3-90 feet (1-30 meters.) Position your devices so that the number of walls or ceilings is minimized. 2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a 45-degree angle appears to be almost 3 feet (1 meter) thick. At a -degree angle it looks over 4 feet

(14 meters) thick! Position devices so that the signal will travel straight through a wall or ceiling (instead of at an angle) for better reception. 3. Building materials make a difference. A solid metal door or aluminum studs may have a negative effect on range. Try to position access points, wireless routers, and computers so that the signal passes through drywall or open doorways. Materials and objects such as glass, steel, metal, walls with insulation, water (fish tanks), mirrors, file cabinets, brick, and concrete will degrade your wireless signal. 4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF noise. 5. If you are using 2.4GHz cordless phones or X-10 devices (wireless products that control devices such as ceiling fans, lights, and home security systems), your wireless connection may degrade dramatically or drop completely. Make sure your .4Hz phone base is as far away from your wireless devices as possible. The base transmits a signal even if the phone in not in use. D-Link DIR-400 User Manual 11 Section  - Installation Connecting to a Cable/DSL/Satellite Modem If you are connecting the router to a cable/DSL/satellite modem, please follow the steps below:

1. Place the router in an open and central location. Do not plug the power adapter into the router. 2. Turn the power off on your modem. If there is no on/off switch, then unplug the modems power adapter. Shut down your computer. 3. Unplug the Ethernet cable (that connects your computer to your modem) from your computer and place it into the WAN port on the router. 4. Plug the included Ethernet cable into one of the four LAN ports on the router. Plug the other end into the Ethernet port on your computer. 5. Turn on or plug in your modem. Wait for the modem to boot (about 30 seconds). 6. Plug the power adapter to the router and then plug it into an outlet or power strip. Wait about 30 seconds for the router to boot. 7. Turn on your computer. 8. Verify the link lights on the router. The power light, WAN light, and the LAN light (the port that your computer is plugged into) should be lit. If not, make sure your computer, modem, and router are powered on and verify that the cable connections are correct. 9. Skip to page 15 to configure your router. D-Link DIR-400 User Manual 1

Section  - Installation Connecting to Another Router If you are connecting the D-Link router to another router for use as a wireless access point and/or switch, you will have to do the following before connecting the router to your network:

Disable UPnP Disable DHCP Change the LAN IP address to an available address on your network. The LAN ports on the router cannot accept a DHCP address from your other router. To connect to another router, please follow the steps below:

1. Plug the power adapter into the router. Connect one of your computers to the router (LAN port) using an Ethernet cable. Make sure your IP address on the computer is 19.168.0.xxx (where xxx is between  and 54). Please see the Networking Basics section for more information. If you need to change the settings, write down your existing settings before making any changes. In most cases, your computer should be set to receive an IP address automatically in which case you will not have to do anything to your computer. 2. Open a web browser and enter http://192.168.0.1 and press Enter. When the login window appears, set the user name to admin and leave the password box empty. Click OK to continue. 3. Click on Advanced and then click Advanced Network. Uncheck the Enable UPnP checkbox. Click Save Settings to continue. 4. Click Setup and then click Network Settings. Uncheck the Enable DHCP Server checkbox. Click Save Settings to continue. 5. Under Router Settings, enter an available IP address and the subnet mask of your network. Click Save Settings to save your settings. Use this new IP address to access the configuration utility of the router in the future. Close the browser and change your computers IP settings back to the original values as in Step 1. D-Link DIR-400 User Manual 13 Section  - Installation 6. Disconnect the Ethernet cable from the router and reconnect your computer to your network. 7. Connect an Ethernet cable to one of the LAN ports of the router and connect it to your other router. Do not plug anything into the WAN port of the D-Link router. 8. You may now use the other three LAN ports to connect other Ethernet devices and computers. To configure your wireless network, open a web browser and enter the IP address you assigned to the router. Refer to the Configuration and Wireless Security sections for more information on setting up your wireless network. D-Link DIR-400 User Manual 14 Section 3 - Configuration Configuration This section will show you how to configure your new D-Link wireless router using the web-based configuration utility. Web-based Configuration Utility To access the configuration utility, open a web-browser such as Internet Explorer and enter the IP address of the router (19.168.0.1). Enter the user name (admin) and your password. Leave the password blank by default. If you get a Page Cannot be Displayed error, please refer to the Troubleshooting section for assistance. D-Link DIR-400 User Manual 15

Section 3 - Configuration Setup Wizard You can quickly set up your router by running the setup wizard from the Internet Setup window. Click Internet Connection Setup Wizard, and you will be directed to the first window of the wizard. Click Next to continue. Create a new password and then click Next to continue. D-Link DIR-400 User Manual 16 Section 3 - Configuration Select your time zone from the drop-down menu and then click Next to continue. Select the type of Internet connection you use and then click Next to continue. If you selected Dynamic IP Address, you may need to enter the MAC address of the computer that was last connected directly to your modem. If you are currently using that computer, click Clone Your PCs MAC Address and then click Next to continue. The Host Name is optional but may be required by some ISPs. The default host name is the device name of the router and may be changed. D-Link DIR-400 User Manual 17 Section 3 - Configuration If you selected PPPoE, enter your PPPoE username and password. Click Next to continue. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. Note: Make sure to remove your PPPoE software from your computer. The software is no longer needed and will not work through a router. If you selected PPTP, enter your PPTP username and password. Click Next to continue. If you selected L2TP, enter your LTP username and password. Click Next to continue. D-Link DIR-400 User Manual 18 Section 3 - Configuration If you selected Big Pond, enter your Big Pond username and password. Click Next to continue. If you selected Static, enter the network settings supplied by your Internet provider. Click Next to continue. If you selected Russia PPTP, enter your PPTP username and password. Click Next to continue. D-Link DIR-400 User Manual 19 Section 3 - Configuration If you selected Russia PPTP, you will also be asked to enter your routing information as given to you by your ISP. Click Next to continue. If you selected Russia PPPoE, enter your PPPoE username and password. Click Next to continue. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. Note: Make sure to remove your PPPoE software from your computer. The software is no longer needed and will not work through a router. If you selected Russia PPPoE, you will also be asked to enter your routing information as given to you by your ISP. Click Next to continue. D-Link DIR-400 User Manual

0 Section 3 - Configuration Click Connect to save your settings. The router will automatically reboot. D-Link DIR-400 User Manual

1 Section 3 - Configuration Internet Setup Dynamic (Cable) To manually set up the Internet connection, click the Manual Internet Connection Setup button on the routers opening window. Access Point Mode:

Dynamic IP Address:

Checking this box disables NAT and turns the router into an Access Point only. Choose Dynamic IP Address to obtain IP Address information automatically from your ISP. Select this option if your ISP does not give you any IP numbers to use. This option is commonly used for Cable modem services. Host Name:

The Host Name is optional but may be required by some ISPs. The default host name is the device name of the router and may be changed. MAC Address:

The default MAC Address is set to the WANs physical interface MAC address on the router. It is not recommended that you change the default MAC address unless required by your ISP. Clone MAC Address:

The default MAC address is set to the WANs physical interface MAC address on the router. You can use the Clone MAC Address button to copy the MAC address of the Ethernet Card installed by your ISP and replace the WAN MAC address with the MAC address of the router. It is not recommended that you change the default MAC address unless required by your ISP. Primary DNS Addresses:

Enter the Primary DNS (Domain Name Server) server IP address assigned by your ISP. Secondary DNS:

This is optional. MTU:

Maximum Transmission Unit - You may need to change the MTU for optimal performance with your specific ISP. 1500 is the default MTU. D-Link DIR-400 User Manual

Section 3 - Configuration Internet Setup PPPoE (DSL) Choose PPPoE (Point to Point Protocol over Ethernet) if your ISP uses a PPPoE connection. Your ISP will provide you with a username and password. This option is typically used for DSL services. Make sure to remove your PPPoE software from your computer. The software is no longer needed and will not work through a router. PPPoE:

Select Dynamic (most common) or Static. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. User Name:

Enter your PPPoE user name. Password:

Enter your PPPoE password and then retype the password in the next box. Service Name:

Enter the ISP Service Name (optional). IP Address:

Enter the IP address (Static PPPoE only). DNS Addresses:

Enter the Primary and Secondary DNS Server Addresses

(Static PPPoE only). Maximum Idle Time:

Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature, select Always-on as your Connection Mode. MTU:

Maximum Transmission Unit - You may need to change the MTU for optimal performance with your specific ISP. 1492 is the default MTU. Connection Mode Select:

Select either Always-on, Manual, or Connect-on demand. D-Link DIR-400 User Manual

3 Section 3 - Configuration Internet Setup PPTP Choose PPTP (Point-to-Point-Tunneling Protocol ) if your ISP uses a PPTP connection. Your ISP will provide you with a username and password. This option is typically used for DSL services. PPTP:

Select Dynamic (most common) or Static. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. IP Address:

Enter the IP address (Static PPTP only). Subnet Mask:

Enter the Primary and Secondary DNS Server Addresses

(Static PPTP only). Gateway:

Enter the ateway IP Address provided by your ISP. DNS:

The DNS server information will be supplied by your ISP. Server IP:

Enter the Server IP provided by your ISP (optional). PPTP Account:

Enter your PPTP account name. PPTP Password:

Enter your PPTP password and then retype the password in the next box. Maximum Idle Time:

Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature, select select Always-on as your Connection Mode.. MTU:

Maximum Transmission Unit - You may need to change the MTU for optimal performance. 1400 is the default MTU. Connect Mode:

Select either Always-on, Manual, or Connect-on demand. D-Link DIR-400 User Manual

4 Section 3 - Configuration Internet Setup L2TP Choose LTP (Layer  Tunneling Protocol) if your ISP uses a LTP connection. Your ISP will provide you with a username and password. This option is typically used for DSL services. L2TP:

Select Dynamic (most common) or Static. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. IP Address:

Enter the IP address (Static LTP only). Subnet Mask:

Enter the Primary and Secondary DNS Server Addresses (Static LTP only). Gateway:

Enter the ateway IP Address provided by your ISP. DNS:

The DNS server information will be supplied by your ISP. Server IP:

Enter the Server IP provided by your ISP (optional). L2TP Account:

Enter your LTP account name. L2TP Password:

Enter your LTP password and then retype the password in the next box. Maximum Idle Time:

Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature, select select Always-on as your Connection Mode.. MTU:

Maximum Transmission Unit - You may need to change the MTU for optimal performance with your specific ISP. 1400 is the default MTU. Connection Mode Select::

Select either Always-on, Manual, or Connect-on demand. D-Link DIR-400 User Manual

5 Section 3 - Configuration Internet Setup Big Pond Choose Big Pond if your ISP uses a Big Pond connection. Your ISP will provide you with a username and password. User Name:

Enter your Big Pond user name. Password:

Enter your Big Pond password and then retype the password in the next box. Auth Server:

Choose your Authentication Server from the dropdown box. Login Server IP:

Enter the IP address of the login server. (optional) MAC Address:

Clone MAC Address:

The default MAC Address is set to the WANs physical interface MAC address on the router. It is not recommended that you change the default MAC address unless required by your ISP. The default MAC address is set to the WANs physical interface MAC address on the router. You can use the Clone MAC Address button to copy the MAC address of the Ethernet Card installed by your ISP and replace the WAN MAC address with the MAC address of the router. It is not recommended that you change the default MAC address unless required by your ISP. D-Link DIR-400 User Manual

6 Section 3 - Configuration Internet Setup Static (assigned by ISP) Select Static IP Address if all WAN IP information is provided to you by your ISP. You will need to enter in the IP address, subnet mask, gateway address, and DNS address(es) provided to you by your ISP. Each IP address entered in the fields must be in the appropriate IP form; the router will not accept the IP address if it is not in a valid format. IP Address:

Enter the IP address assigned by your ISP. Subnet Mask:

Enter the Subnet Mask assigned by your ISP. ISP Gateway:

Enter the ateway assigned by your ISP. MAC Address:

Clone MAC Address:

The default MAC Address is set to the WANs physical interface MAC address on the router. It is not recommended that you change the default MAC address unless required by your ISP. The default MAC address is set to the WANs physical interface MAC address on the router. You can use the Clone MAC Address button to copy the MAC address of the Ethernet Card installed by your ISP and replace the WAN MAC address with the MAC address of the router. It is not recommended that you change the default MAC address unless required by your ISP. Primary DNS Address:

Enter the Primary DNS server IP address assigned by your ISP. Secondary DNS Address:

This is optional. MTU:

Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specific ISP. 1492 is the default MTU. D-Link DIR-400 User Manual

7 Section 3 - Configuration Internet Setup Russia PPTP Choose Russia PPTP (Point-to-Point-Tunneling Protocol ) if your PPTP Internet connection requires a username and password to get online as well as a static route to access your ISPs internal network. Your ISP will provide you with a username and password. Certain ISPs in Russia use this type of connection. PPTP:

Select Dynamic (most common) or Static. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. IP Address:

Enter the IP address (Static PPTP only). Subnet Mask:

Enter the Primary and Secondary DNS Server Addresses (Static PPTP only). Gateway:

Enter the ateway IP Address provided by your ISP. DNS:

The DNS server information will be supplied by your ISP (Internet Service Provider.) Server IP:

Enter the Server IP provided by your ISP (optional). PPTP Account:

Enter your PPTP account name. PPTP Password:

Maximum Idle Time:

Enter your PPTP password and then retype the password in the next box. Enter a maximum idle time during which the Internet connection is maintained during inactivity. select Always-on as your Connection Mode. MTU:

Maximum Transmission Unit - You may need to change the MTU for optimal performance. Connection Mode Select:

Select either Always-on, Manual, or Connect-on demand. D-Link DIR-400 User Manual

8 Section 3 - Configuration Internet Setup Russia PPPoE (DSL) Choose Russia PPPoE (Point to Point Protocol over Ethernet) if your PPPoE Internet connection requires a username and password to get online as well as a static route to access your ISPs internal network. Your ISP will provide you with a username and password. Certain ISPs in Russia use this type of connection. Make sure to remove your PPPoE software from your computer. The software is no longer needed and will not work through a router. PPPoE:

Select Dynamic (most common) or Static. Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. User Name:

Enter your PPPoE user name. Password:

Enter your PPPoE password and then retype the password in the next box. Service Name:

Enter the ISP Service Name (optional). IP Address:

Enter the IP address (Static PPPoE only). DNS Addresses:

Enter the Primary and Secondary DNS Server Addresses (Static PPPoE only). Maximum Idle Time:

Enter a maximum idle time during which the Internet connection is maintained during inactivity. select Always-on as your Connection Mode. MTU:

Maximum Transmission Unit - You may need to change the MTU for optimal performance with your specific ISP. 1492 is the default MTU. Connection Mode Select:

Select either Always-on, Manual, or Connect-on demand. D-Link DIR-400 User Manual

9 Section 3 - Configuration Wireless Setup (Automatic) Wireless settings for the router may be configured manually or by using a wizard. To use the wizard, click the Wireless Connection Setup Wizard button and then follow the steps that are described below. To configure the wireless settings manually, click the Manual Wireless Connection Setup button. After setting up your wireless network, you can use the Add Wireless Device With WPS(Wi-Fi Protected Setup) Wizard to add wireless devices to your network. The parameters for this window are described later in this section. The Wireless Security section that directly follows this Configuration section provides additional explanation for how to configure the WEP, WPA, WPA, and WPA/WPA wireless security mode options. Enter a Wireless Network Name (SSID) in the text box to identify your wireless network. Check Automatically assign a network key if you want the DIR-400 to automatically generate a secure network key for you to use, or check Manually assign a network key to create your own network key. WEP encryption(more compatible) is used by default; if you want to use WPA encryption(newer, more secure), check the Use WPA encryption instead of WEP checkbox. Click Next. D-Link DIR-400 User Manual 30

Section 3 - Configuration If you chose Automatically assign a network key, this screen will appear with your automatically generated key. Please print this out or record this information in a safe place and then click Save to continue. The router will save your new settings and reboot. After rebooting, you will be returned to the Internet Setup screen. If you chose Manually enter a network key, this screen will appear. Enter a network key and click Next. If you chose WEP, the network key must be exactly 5 or 13 characters long, or 10 to 6 characters using 0-9 or A-F only

(hexidecimal). Longer network keys will be more secure. If you chose WPA, the network key must be between 8 and 63 characters long, or exactly 64 characters using 0-9 or A-F only

(hexidecimal). Longer network keys will be more secure. After clicking Next, this screen will appear with your wireless settings. Please print this out or record this information in a safe place and then click Save to continue. The router will save your new settings and reboot. After rebooting, you will be returned to the Internet Setup screen. D-Link DIR-400 User Manual 31 Section 3 - Configuration Wireless Setup (Manual) If you clicked the Manual Wireless Connection Setup button, this screen will appear, allowing you to manually configure your wireless settings. Wi-Fi Protected Setup:

To implement Wi-Fi protection, or WCN .0, tick the Enable checkbox, click either Generate New PIN or Reset PIN to Default, and then configure the Wi-Fi settings below. Please see the Setting Up Wi-Fi Protection (WCN .0 in Windows Vista) section later in this manual for detailed configuration information. Enable:

Wireless:

Check the box to enable wireless. If you do not want to use wireless, uncheck the box to disable all wireless functions. Wireless Network Name:

Service Set Identifier (SSID) is the name of your wireless network. Create a name using up to 3 characters. The SSID is case-sensitive. Wireless Channel:

Indicates the channel setting for the DIR-400. By default the channel is set to 6. The wireless channel can be changed to fit the channel setting for an existing wireless network or to customize the wireless network. The Auto Channel Selection setting can be selected to allow the DIR-400 to choose the channel with the least amount of interference. Super G Mode:

You can enable a Super Mode to allow the router to communicate with other D-Link 108 products at boosted transmission rates. Choosing Super G without Turbo allows you to have enhanced transfer speeds through use of Dynamic Packet Bursting, Fast Frames and Hardware Encryption and Compression. Choosing Super G with Dynamic Turbo allows the router to use two channels to double the data transfer rate in addition to Dynamic Packet Bursting, Fast Frames and Hardware Encryption and Compression. However, all wireless clients must be Turbo capable for this function to work. If a non-Turbo wireless client connects to the network, all devices on the wireless network will transfer data at normal rates. D-Link DIR-400 User Manual 3

Section 3 - Configuration Transmission Rate:

Use the drop-down menu to select the appropriate Transmission Rate in Mbits per second. Many users will want to use the default setting, Best (automatic). WMM Enable:

Enable WMM (Wi-Fi Multimedia) to enjoy basic quality of service features. WMM prioritizes traffic according to four access categories: voice, video, best effort, and background. Enable Hidden Wireless:

Check this option if you would not like the SSID of your wireless network to be broadcasted by the router. If this option is checked, the SSID of the DIR-400 will not be seen by wireless network finding utilities, so your wireless clients will have to know the SSID of your DIR-400 in order to connect to it. D-Link DIR-400 User Manual 33 Section 3 - Configuration Security Mode:

Enabling WEP Wireless Security 1. To enable wireless security on the router, use the drop-down menu to select the desired option. To enable WEP, select Enable WEP Wireless Security (basic). 2. Next to Authentication, select either Open or Shared Key. Shared Key provides greater security. 3. Select either 64Bit or 128Bit encryption from the drop-down menu next to WEP Encryption. 4. Next to Default Key Type, select WEP Key 1 and enter a WEP key that you create. Make sure you enter this key exactly on all your wireless devices. You may enter up to four different keys either using Hex or ASCII. Hex is recommended

(letters A-F and numbers 0-9 are valid). In ASCII all numbers and letters are valid. 5. Click Save Settings to save your settings. If you are configuring the router with a wireless adapter, you will lose connectivity until you enable WEP on your adapter and enter the same WEP key as you did on the router. NOTE: It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to the added overhead. D-Link DIR-400 User Manual 34 Section 3 - Configuration Enabling WPA, WPA2, WPA/WPA2 Wireless Security 1. To enable WPA, WPA, or WPA/WPA, select either Enable WPA Only Wireless Security

(enhanced), Enable WPA2 Only Wireless Security

(enhanced), or Enable WPA/WPA2 Wireless Security (enhanced). 2. Next to Cipher Type, select TKIP, AES, or Both. 3. Next to PSK/EAP, select PSK. 4. N e x t t o N e t w o r k K e y , e n t e r a passphrase. The key is an alpha-numeric password between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. Make sure you enter this key exactly the same on all other wireless clients. 5. Click Save Settings to save your settings. If you are configuring the router with a wireless adapter, you will lose connectivity until you enable WPA, WPA, or WPA/WPA (whichever of the three options you have selected above) on your adapter and enter the same network key as you did on the router. D-Link DIR-400 User Manual 35 Section 3 - Configuration Enabling WPA, WPA2, WPA/WPA2 Wireless Security for a RADIUS Server 1. To enable WPA, WPA, or WPA/WPA for a RADIUS server, next to Security Mode, select Enable WPA Only Wireless Security (enhanced), Enable WPA2 Only Wireless Security (enhanced), or Enable WPA/WPA2 Wireless Security (enhanced). 2. Next to Cipher Type, select TKIP, AES, or Auto. 3. Next to PSK/EAP, select EAP. 4. Next to RADIUS Server 1 enter the IP Address of your RADIUS server. 5. Next to Port, enter the port you are using with your RADIUS server. 1812 is the default port. 6. Next to Shared Secret, enter the security key. 7. If you have a secondary RADIUS server, enter its IP address, port, and secret key. 8. Click Save Settings to save your settings. Note: When using EAP mode, you cannot have WPS enabled. D-Link DIR-400 User Manual 36 Section 3 - Configuration Adding a Wireless Device through WPS You can add WPS (Wi-Fi Protected Setup) compatible devices with the help of a wizard by clicking the Add Wireless Device with WPS button. If you have not already enabled WPS, this message will appear. Click Yes to enable WPS. D-Link DIR-400 User Manual 37 Section 3 - Configuration Adding a Wireless Device through WPS (Wi-Fi Protected Setup) On this screen, select Automatic if your wireless device supports WPS and you want to use those features to help configure it. Click Next. Select Manual if your device does not support WPS, or if you want to configure your device manually. Clicking Next will show your routers SSID and encryption information, which you can use to configure your wireless device. For more help on configuring your wireless device, consult the owners manual for that device. D-Link DIR-400 User Manual 38 Section 3 - Configuration Adding a Wireless Device through WPS (PIN) Here, you can add a device by using a PIN number, or by using Push Button Configuration (PBC). Connecting using a PIN number is more secure, while PBC is much easier to use. If you chose to add your device by PIN number, click the circle next to PIN and enter the PIN number of your device. Click Connect. Press the PBC Connect button on your device within 2 minutes to automatically configure that devices wireless connection. After  minutes, you will be taken back to the Wireless Setup screen. If no devices were connected during that time, a screen will appear allowing you to retry device connection. D-Link DIR-400 User Manual 39 Section 3 - Configuration Adding a Wireless Device through WPS (PBC) If you selected PBC, you will need to press the WPS push button on your device within  minutes, and the devices wireless connection will automatically be configured. After  minutes, you will be taken back to the Wireless Setup screen. If no devices were connected during that time, a screen will appear allowing you to retry device connection. D-Link DIR-400 User Manual 40 Section 3 - Configuration LAN Setup This section will allow you to change the local network settings of the router and to configure the DHCP settings. Router IPIP Address:

Enter the IP address of the router. The default IP address is 19.168.0.1. If you change the IP address, once you click Apply, you will need to enter the new IP address in your browser to get back into the configuration utility. Default Subnet Mask:

Enter the Subnet Mask. The default subnet mask is

55.55.55.0. Local Domain Name:

Enter the Domain name (Optional). Enable DNS Relay:

Check the box to transfer the DNS server information from your ISP to your computers. If unchecked, your computers will use the router for a DNS server. Refer to the next page for DHCP settings. D-Link DIR-400 User Manual 41 Section 3 - Configuration DHCP Server Settings DHCP stands for Dynamic Host Control Protocol. The DIR-400 has a built-in DHCP server. The DHCP Server will automatically assign an IP address to the computers on the LAN/private network. Be sure to set your computers to be DHCP clients by setting their TCP/IP settings to Obtain an IP Address Automatically. When you turn your computers on, they will automatically load the proper TCP/

IP settings provided by the DIR-400. The DHCP Server will automatically allocate an unused IP address from the IP address pool to the requesting computer. You must specify the starting and ending address of the IP address pool. Enable DHCP Server:

Check the box to enable the DHCP server function on your router. Uncheck to disable this function. DHCP IP Address Range:

Enter the starting and ending IP addresses for the DHCP servers IP assignment. DHCP Lease Time:

The length of time for the IP address lease. Enter the lease time in minutes. D-Link DIR-400 User Manual 4

Section 3 - Configuration DHCP Reservation DHCP Reservation lets you manually assign IP addresses for computers connected to your network. It allows you to reserve an IP to be used for a particular computer only. This is useful when also using other network management features, such as firewall rules and port forwarding. After entering a reservation, click on Save Settings to save your changes. Computer Name:

Enter a name for the computer you want to reserve an IP for. IP Address:

Enter the IP you wish to assign to the computer. MAC Address:

Enter the MAC address of the computer you want to reserve an IP for. To find the MAC address on a computer, please refer to the Networking Basics section in this manual. You can also use the dropdown box (Computer Name) to automatically enter the Computer Name, current IP Address, and MAC Address of a computer currently connected to the router. To do so, select a computer from the dropdown box, then click the << button. D-Link DIR-400 User Manual 43 Section 3 - Configuration Time and Date This section will allow you to configure, update, and maintain the correct time on the routers internal system clock. Time Zone:

Select your Time Zone from the drop-down menu. Enable Daylight Saving:

Ticking this checkbox enables Daylight Saving time. Click Sync. your computers time settings to copy your PCs time settings. NTP Server Used:

Tick the Automatically synchronize with D-Links Internet time server checkbox and then use the drop-down menu to select an NTP Server. NTP is short for Network Time Protocol. NTP synchronizes computer clock times in a network of computers. Manual:

To manually input the time, enter the values in these fields for the Year, Month, Day, Hour, Minute, and Second. Click Save Settings. D-Link DIR-400 User Manual 44 Section 3 - Configuration Parental Control This feature allows you to create a list of websites that you want to either allow or deny users access to. Configure Parental Control:

Select Turn Parental Control OFF, Turn Parental Control ON and ALLOW computers access to ONLY these sites, or Turn Parental Control ON and DENY computers access to ONLY these sites. Website URL:

Enter the keywords or URLs that you want to block

(or allow). Any URL with the keyword in it will be blocked (or allowed). Schedule:

The schedule of time when the parental control rule will be enabled. The schedule may be set to Always, which will allow the particular service to always be enabled, or you can create your own schedule in the Maintenance > Schedules section. D-Link DIR-400 User Manual 45 Section 3 - Configuration Port Forwarding This will allow you to open a single port or a range of ports. This may be necessary for some online applications, such as online gaming. Check with your softwares technical support site to see if your software requires port forwarding. Rule:

Check the box to enable the rule. Name:

Enter a name for the rule. You can also use the dropdown box (Application Name) to automatically enter the Name, Ports and Traffic Type for common applications such as FTP, Telnet, and more. To do so, select an application from the dropdown box, then click the << button. IP Address:

Enter the IP address of the computer on your local network that you want to allow the incoming service to. Port:

You can also use the dropdown box (Computer Name) to automatically enter the IP address of a computer currently connected to the router. To do so, select a computer from the dropdown box, then click the << button. Enter the port or ports that you want to open for both Public Ports(WAN ports) and Private Ports(LAN ports). You can open a range of ports by entering the starting port in the first box and the ending port in the second box. If you want to open a single port, enter the same port number in both boxes. Traffic Type:

Select what kind of traffic to allow through the ports:

TCP, UDP, or Any. D-Link DIR-400 User Manual 46 Section 3 - Configuration Application Rules Some applications require multiple connections, such as Internet gaming, video conferencing, Internet telephony and others. These applications may have difficulty working through NAT (Network Address Translation) functions of a router. Application Rules help these applications work through the DIR-400. Rule:

Check the box to enable the rule. Name:

Enter a name for the rule. You can also use the dropdown box (Application Name) to automatically enter the Name, Ports and Traffic Type for common applications such as FTP, Telnet, and more. To do so, select an application from the dropdown box, then click the << button. Trigger Port:

This is the port used to trigger the rule. It can be either a single port or a range of ports. Firewall Port:

This is the port number on the WAN side that will be used to access the application. You may define a single port or a range of ports. You can use a comma to add multiple ports or port ranges. Traffic Type:

Select what kind of traffic to control: TCP, UDP, or Any.. D-Link DIR-400 User Manual 47 Section 3 - Configuration Access Control Use MAC (Media Access Control) Filters to allow or deny LAN (Local Area Network) computers from accessing the Network based on their MAC addresses. You can either manually add a MAC address or select the MAC address from the list of clients that are currently connected to the router. Configure MAC Filter:

MAC Address:

DHCP Client List:

Here, you have three options: Select Turn MAC Filtering OFF, Turn MAC Filtering ON and ALLOW computers listed to access the network, or Turn MAC Filtering ON and DENY computers listed to access the network. Enter the MAC address you would like to filter. To find the MAC address on a computer, please refer to the Networking Basics section in this manual. You can use the dropdown box (Computer Name) to automatically enter the MAC address of a computer currently connected to the router. To do so, select a computer from the dropdown box, then click the << button. Schedule:

This selects which schedule will be used to determine when the MAC filter will be enabled. The schedule may be set to Always, which will allow the particular service to always be enabled. Clicking on Add New will allow you to make a new schedule. You can view current schedule settings in the Maintenance > Schedules section. D-Link DIR-400 User Manual 48 Section 3 - Configuration Firewall & DMZ - DMZ Host This section will allow you to set up a DMZ host. If you have a client PC that cannot run Internet applications properly from behind the DIR-400, then you can set the client up for unrestricted Internet access. It allows a computer to be fully exposed to the Internet. This feature is useful for some applications such as gaming. Note that adding a client to the DMZ (Demilitarized Zone) may expose your local network to a variety of security risks, so only use this option as a last resort. Enable SPI:

Check this to enable SPI (Stateful Packet Inspection). Enable DMZ Host:

Check this box to enable the DMZ Host feature. DMZ IP Address:

Enter the IP address of the computer you would like to open all ports to (the DMZ Host). D-Link DIR-400 User Manual 49 Section 3 - Configuration Firewall & DMZ - Firewall Rules This section will allow you to set up firewall rules. Firewall Rules allow you to specifically allow or deny traffic to and from specific IPs and ports between your network and the internet. Name:

Choose a name for the firewall rule. Action:

Select to Allow or Deny transport of the data packets according to the criteria defined in the rule. Source/Dest:

The Source/Destination is the TCP/UDP port on either the LAN (local network) or WAN (Internet) side. IP Address:

Enter a beginning and ending IP address. If you only want to affect a single IP address, enter the same IP address in both boxes. Protocol:

Select the transport protocol that will be used for the filter rule. Port Range:

Enter the desired port range for the filter rule. If you only want to affect a single port, enter the same port in both boxes. Schedule:

This selects which schedule will be used to determine when the firewall rule will be enabled. The schedule may be set to Always, which will allow the particular service to always be enabled. Clicking on Add New will allow you to make a new schedule. You can view current schedule settings in the Maintenance > Schedules section. D-Link DIR-400 User Manual 50 Section 3 - Configuration Advanced Wireless This window allows you to change the behavior of the 80.11g wireless radio from the standard settings. Please be aware that any changes to the factory default settings may adversely affect the behavior of your network. Transmit Power:

Set the transmit power of the antennas. Beacon interval:

Beacons are packets sent by an Access Point to synchronize a wireless network. Specify a value. 100 is the default setting and is recommended. RTS Threshold:

This value should remain at its default setting of 2346. If inconsistent data flow is a problem, only a minor modification should be made. Fragmentation:

The fragmentation threshold, which is specified in bytes, determines whether packets will be fragmented. Packets exceeding the 346 byte setting will be fragmented before transmission. 2346 is the default setting. DTIM Interval:

A DTIM (Delivery Traffic Indication Message) is a countdown

(Delivery Traffic Indication Message) is a countdown is a countdown informing clients of the next window for listening to broadcast and multicast messages. 1 is the default setting. Preamble Type:

Select Short or Long Preamble. The Preamble defines the length of the CRC block (Cyclic Redundancy Check is a common technique for detecting data transmission errors) for communication between the wireless router and the roaming wireless network adapters. Auto is the default setting. Note: High network traffic areas should use the shorter preamble type. CTS Mode:

CTS (Clear To Send) is a function used to minimize collisions among wireless devices on a wireless local area network

(LAN). CTS will make sure the wireless network is clear before a wireless client attempts to send wireless data. Enabling CTS will add overhead and may lower wireless throughput. None: CTS is typically used in a pure 80.11g environment. If CTS is set to None in a mixed mode environment populated by 80.11b clients, wireless collisions may occur frequently. Always: CTS will always be used to make sure the wireless LAN is clear before sending data. Auto: CTS will monitor the wireless network and automatically decide whether to implement CTS based on the amount of traffic and collisions that occurs on the wireless network. 802.11g Only Mode:

Tick this checkbox to restrict access to 80.11g devices only. D-Link DIR-400 User Manual 51 Section 3 - Configuration Advanced Network This window allows you to change the LAN settings. Please be aware that any changes from the factory default settings may affect the behavior of your network. Enable UPnP:

To use the Universal Plug and Play (UPnP) feature tick this checkbox. UPNP provides compatibility with networking equipment, software and peripherals. Enable WAN Ping Respond:

Unchecking the box will not allow the DIR-400 to respond to ping requests. Blocking pings may provide some extra security from hackers. Tick this checkbox to allow the WAN port to be Pinged. WAN Port Speed:

You may set the port speed of the WAN port to 10Mbps, 100Mbps, or 10/100Mbps Auto. Some older cable or DSL modems may require you to set the port speed to 10Mbps. Enable Gaming Mode:

aming mode allows a form of pass-through for certain internet games. If you are using an XBox/XBox 360, Playstation /Playstation 3, Nintendo Wii or a PC, make sure you are using the latest firmware and Gaming Mode is enabled. To utilize aming Mode, tick this checkbox. If you are not using an online gaming application, it is recommended that you disable aming Mode by leaving the checkbox unticked. D-Link DIR-400 User Manual 5

Section 3 - Configuration This option allows you to define fixed routes to defined destinations. Routing Enable:

Tick this checkbox to enable or disable fixed routes to defined destinations. Interface:

Use the drop-down menu to choose which interface, WAN or WAN (Physical Port), the IP packet must use to transit out of the router. Destination:

The IP address of the packets that will take this route. Subnet Mask:

The subnet of the IP address of the packets that will take this route. Gateway:

Specifies the next hop to be taken if this route is used. D-Link DIR-400 User Manual 53 Section 3 - Configuration Device Administration This window will allow you to change the Administrator password. You can also enable Remote Management from this screen. Administrator Login Name:

Enter a new Login Name for the Administrator account. The default Login Name is admin. Note that the Login Name is case-sensitive, e.g. admin would be a different Login Name than Admin. Administrator Password:

Enter a new password for the Administrator Login Name and then retype the new password in the Confirm Password textbox. The administrator can make changes to the settings. Enable Remote Management:

Remote management allows the DIR-400 to be configured from the Internet through a web browser. The Administrator Login Name and Password are still required to access the web management interface. Normally, only a member of your network can browse the built-

in web pages to perform Administrator tasks. This feature enables you to perform Administrator tasks from a remote

(Internet) host. IP Allowed to Access:

The Internet IP address of the computer that has access to the router. If you input an asterisk (*) into this field, then any computer will be able to access the router. Putting an asterisk (*) into this field would present a security risk and is not recommended. Port:

The port number used to access the DIR-400. For example: http://x.x.x.x:8080, where x.x.x.x is the WAN IP address of the DIR-400 and 8080 is the port used for the web management interface. D-Link DIR-400 User Manual 54 Section 3 - Configuration Save and Restore This window allows you to save your configuration file to a hard drive, load configuration settings from a hard drive, and restore the routers factory default settings. Save Settings to Local Hard Drive:

Use this option to save the current router configuration settings to a file on the hard disk of the computer you are using. First, click the Save button. You will then see a file dialog, where you can select a location and file name for the settings. Load Settings from Local Hard Drive:

Use this option to load previously saved router configuration settings. First, use the Browse control to find a previously save file of configuration settings. Then, click the Upload Settings button to transfer those settings to the router. Restore to Factory Default Settings:

This option will restore all configuration settings back to the default settings that the router came with. Any settings that have not been saved will be lost, including any rules that you have created. If you want to save the current router configuration settings, use the Save button above. Reboot:

Click the Reboot button on the left side of the window to restart the router. D-Link DIR-400 User Manual 55 Section 3 - Configuration Firmware Update You can upgrade the firmware of the router here. Make sure the firmware you want to use is on the local hard drive of the computer. Click on Browse to locate the firmware file to be used for the update. Please check the D-Link support site for firmware updates at http://support.dlink.com. You can download firmware upgrades to your hard drive from the D-Link support site. Firmware Upgrade:

Click the Check Now button (or the link at the top of the window) to find out if there is an updated firmware; if so, download the new firmware to your hard drive. Browse:

After you have downloaded the new firmware, click Browse in this window to locate the firmware update on your hard drive. Click Save Settings to complete the firmware upgrade. D-Link DIR-400 User Manual 56 Section 3 - Configuration DDNS Settings The router supports DDNS (Dynamic Domain Name Service). The Dynamic DNS feature allows you to host a server (Web, FTP, game server, etc.) using a domain name that you have purchased or reserved (www.yourdomain.com). Many ISPs assign public IP addresses using DHCP, this can make it difficult to locate a specific host on the Internet using standard DNS as the IP keeps changing. Using the DDNS feature with a DDNS service provider allows you to use a host name that connects to your server no matter what your IP address is. Using the DDNS feature requires that an account be setup with one of the supported DDNS providers. Enable DDNS:

Tick the Enable DDNS checkbox to enable support for DDNS. Server Address:

Select one of the DDNS registration organizations form those listed in the pull-down menu. Available servers include dlinkddns.com(Free), DynDns. org(Custom), Dyn.Dns.org(free), and Dyn.Dns. org(Static). Host Name:

Enter the host name of the DDNS server. Username:

Enter the username given to you by your DDNS server. Password:

Enter the password or key given to you by your DDNS server. D-Link DIR-400 User Manual 57 Section 3 - Configuration System Check This tool is used to verify physical connectivity on both the LAN and the WAN interfaces. The Ping Test can be used to test the status of the Internet. Virtual Cable Tester (VCT) Info:

VCT is an advanced feature that integrates a LAN cable tester on every Ethernet port on the router. Through the graphical user interface (UI), VCT can be used to remotely diagnose and report cable faults such as opens, shorts, swaps, and impedance mismatch. This feature significantly reduces service calls and returns by allowing users to easily troubleshoot their cable connections. Click on More Info to find out more information about a particular connection. Ping Test:

The Ping Test is used to send ping packets to test if a computer is on the Internet. Enter the Host Name or IP Address that you wish to ping, and click Ping. D-Link DIR-400 User Manual 58

Section 3 - Configuration Schedules The Schedules screen allows the user to manage schedule rules for various firewall and parental control features. Once you have finished configuring or creating a schedule rule, click the Save Settings button at the top of the window. Name:

Enter a name for the new schedule rule. Day(s):

Choose All Week to have the schedule run every day, or choose Select Day(s) to have the schedule run only on particular days. If Select Day(s) is selected, please use the checkboxes directly below to specify the individual days. All Day - 24 hrs:

Tick this check box if the new schedule rule applies to the full 4-hour period for the days selected. Start Time/

End Time:

If the new schedule rule does not apply to the full

4-hour period, make sure the All Day - 4 hrs checkbox is unticked and enter a specific beginning and ending time for the schedule to run. D-Link DIR-400 User Manual 59 Section 3 - Configuration Log Settings The system log displays chronological event log data specified by the router user. You can customize what data is logged and then save the log to disk. You can also send log information to a syslog server, or have the log sent to an e-mail address. Save Log File:

Click on the Save button link on this window to save the current log file to your local hard drive. Log Type:

Tick the checkbox(es) to specify what information will be logged: System Activity, Debug Information, Attacks, Dropped Packets, and Notice. Enable Logging To Syslog Server:

This allows the router to send log information to a syslog server, which can be used to monitor your routers activities. To enable this feature, tick the checkbox. Enter the IP address of the server in this box. If the syslog server is internal to your network, you can use the dropdown box (Computer Name) to automatically enter the IP address of the computer acting as your syslog server. To do so, select a computer from the dropdown box, then click the

<< button. D-Link DIR-400 User Manual 60 Section 3 - Configuration Log Settings - Email Notification Email notification is a feature that sends the router log to a specified e-mail address. Log updates will be sent to the specified e-mail address automatically in 5 minute intervals, or when the log becomes full. You can also send logs according to a set schedule you can define. Enable Email Notification:

To enable e-mail notification, tick this checkbox. From Email Address:

Enter the e-mail address you want to appear in the From: field when sending an e-mail of the log. To Email Address:

Enter the e-mail address you want the log to be sent to. SMTP Server Address:

Enter the name of the SMTP mail server that you want to use to send your e-mails through. Enable Authentication:

Tick this checkbox if your SMTP mail server requires authentication. Account Name:

If your SMTP server requires authentication, enter your accounts user name in this box. Password /

Verify Password:

If your SMTP server requires authentication, enter your accounts password in this box, and enter it again in the Verify Password box. Send Log When Full:

Ticking this box will set the router to e-mail the log only when the log becomes full. When this feature is enabled, you cannot use the Send Log by Schedule feature. Send Log by Schedule:

This lets you select a schedule that will be used to determine when router logs will be sent. During the time specified by your schedule, logs will be sent to your e-mail address in 5 minute intervals. To set a schedule, you must untick the Send Log When Full checkbox. D-Link DIR-400 User Manual 61 Section 3 - Configuration Device Information This window displays the current information for the DIR-400. It will display LAN, WAN, and Wireless information. If your WAN connection is set up for a Dynamic IP address then a DHCP Release button and a DHCP Renew button will be displayed. Use DHCP Release Release to disconnect from your ISP and use DHCP Renew Renew to connect/reconnect to your ISP. LAN:

Displays the MAC address and the private (local) IP settings for the router. WAN:

Displays the MAC address and the public IP settings for the router. Wireless 802.11G:

Displays the wireless MAC address and your wireless settings such as SSID, Channel, and Encryption status. D-Link DIR-400 User Manual 6

Section 3 - Configuration Log This window allows you to view a log of activities on the router. This is especially helpful for detecting unauthorized network usage. First Page:

View the first page of the log. Last Page:

View the last page of the log. Previous:

View the previous page. Next:

View the next page. Clear:

Clear the log. Link to Log Settings:

Click this button to go directly to the Log Settings window (Maintenance > Log Settings). D-Link DIR-400 User Manual 63 Section 3 - Configuration Statistics The window below displays the Traffic Statistics. Here you can view the amount of packets that pass through the DIR-400 on both the WAN and the LAN ports. The traffic counter will reset if the device is rebooted. The NAPT Active Session table displays a list of all active sessions between WAN computers and LAN computers. Active Session D-Link DIR-400 User Manual 64 Section 3 - Configuration Wireless The wireless client table displays a list of currently connected wireless clients. This table also displays the connection time and MAC address of each connected wireless client. D-Link DIR-400 User Manual 65 Section 3 - Configuration Click the desired hyperlink to view more information about how to use the router. Help D-Link DIR-400 User Manual 66 Section 4 - Security Wireless Security This section will show you the different levels of security you can use to protect your data from intruders. The DIR-400 offers the following types of security:

WPA2 (Wi-Fi Protected Access 2) WPA (Wi-Fi Protected Access) WEP (Wired Equivalent Privacy) WPA2-PSK (Wi-Fi Protected Access - Pre-Shared Key) Wi-Fi Protected Access - Pre-Shared Key) Pre-Shared Key) WPA-PSK (Wi-Fi Protected Access - Pre-Shared Key) Wi-Fi Protected Access - Pre-Shared Key) Pre-Shared Key) What is WEP?

WEP stands for Wired Equivalent Privacy. It is based on the IEEE 80.11 standard and uses the RC4 encryption algorithm. WEP provides security by encrypting data over your wireless network so that it is protected as it is transmitted from one wireless device to another. To gain access to a WEP network, you must know the key. The key is a string of characters that you create. When using WEP, you must determine the level of encryption. The type of encryption determines the key length. 18-bit encryption requires a longer key than 64-bit encryption. Keys are defined by entering in a string in HEX (hexadecimal

- using characters 0-9, A-F) or ASCII (American Standard Code for Information Interchange alphanumeric characters) format. ASCII format is provided so you can enter a string that is easier to remember. The ASCII string is converted to HEX for use over the network. Four keys can be defined so that you can change keys easily. D-Link DIR-400 User Manual 67 Section 4 - Security Configuring WEP It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to the added overhead. 1. Log into the web-based configuration by opening a web browser and entering the IP address of the router

(19.168.0.1). Click on Wireless Setup on the left side. 2. Next to Security Mode, select Enable WEP Wireless Security (basic). 3. Next to Authentication, select either Shared Key or OpenOpen. Shared Key is recommended as it provides greater security when WEP is enabled. 4. Select either 64Bit or 128Bit encryption from the drop-down menu next to WEP Encryption. 5. Next to Next to Default WEP Key, select WEP Key 1 and create your own WEP key. Make sure you enter this key exactly on all your wireless devices. You may enter up to four different keys either using Hex or ASCII. Hex is recommended

(only letters A-F and numbers 0-9 are valid). In ASCII all numbers and letters are valid.. 6. Click Save Settings to save your settings. If you are configuring the router with a wireless adapter, you will lose connectivity until you enable WEP on your adapter and enter the same WEP key as you did on the router. D-Link DIR-400 User Manual 68 Section 4 - Security What is WPA?

WPA, or Wi-Fi Protected Access, is a Wi-Fi standard that was designed to improve the security features of WEP (Wired Equivalent Privacy). The two major improvements over WEP are:

Improved data encryption through the Temporal Key Integrity Protocol (TKIP). TKIP scrambles the keys using a hashing algorithm and, by adding an integrity-checking feature, ensures that the keys havent been tampered with. WPA is based on 80.11i and uses the Advanced Encryption Standard (AES) instead of TKIP. User authentication, which is generally missing in WEP, is done through the extensible authentication protocol (EAP). WEP regulates access to a wireless network based on a computers hardware-specific MAC address, which is relatively simple to be sniffed out and stolen. EAP is built on a more secure public-

key encryption system to ensure that only authorized network users can access the network. WPA-PSK/WPA2-PSK uses a passphrase or key to authenticate your wireless connection. The key is an alpha-numeric password between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. This key must be the exact same key entered on your wireless router or access point. WPA/WPA incorporates user authentication through the Extensible Authentication Protocol (EAP). EAP is built on a more secure public key encryption system to ensure that only authorized network users can access the network. D-Link DIR-400 User Manual 69 Section 4 - Security Configuring WPA-PSK and WPA2-PSK It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to the added overhead. 1. Log into the web-based configuration by opening a web browser and entering the IP address of the router (19.168.0.1). Click on Wireless Setup on the left side. 2. Next to Security Mode, select Enable WPA Only Wireless Security (enhanced) or Enable WPA2 Only Wireless Security

(enhanced). 3. Next to Cipher Mode, select TKIP, AES, or Both. 4. Next to PSK/EAP, select PSK. 5. Next to Network Key, enter a key (passphrase). The key is an alpha-numeric password between 8 and 63 characters long. between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. Make sure you enter this key exactly the same on all other wireless clients. 6. Click Save Settings to save your settings. If you are configuring the router with a wireless adapter, you will lose connectivity until you enable WPA-PSK or WPA2-PSK on your adapter and enter the same passphrase as you did on the router. D-Link DIR-400 User Manual 70 Section 4 - Security Configuring WPA/WPA2-PSK It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to the added overhead. 1. Log into the web-based configuration by opening a web browser and entering the IP address of the router

(19.168.0.1). Click on Wireless Setup on the left side. 2. Next to Security Mode, select Enable WPA/WPA2 Wireless Security (enhanced). 3. Next to Cipher Mode, select TKIP, AES, or Both. 4. Next to PSK/EAP, select PSK. 5. Next to Network Key, enter a key (passphrase). The key is an alpha-numeric password between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. Make sure you enter this key exactly the same on all other wireless clients. 6. Click Save Settings to save your settings. If you are configuring the router with a wireless adapter, you will lose connectivity until you enable WPA/WPA2-PSK on your adapter and enter the same passphrase as you did on the router. D-Link DIR-400 User Manual 71 Section 4 - Security Configuring WPA, WPA2, & WPA/WPA2 (RADIUS) It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to the added overhead. 1. Log into the web-based configuration by opening a web browser and entering the IP address of the router (19.168.0.1). Click on Wireless Settings on the left side. 2. Next to Security Mode, select Enable WPA Only Wireless Security (enhanced), Enable WPA2 Only Wireless Security

(enhanced), or Enable WPA/WPA2 Wireless Security

(enhanced). 3. Next to Cipher Type, select TKIP, AES, or Auto. 4. Next to PSK/EAP, select EAP. 5. Next to RADIUS Server 1 enter the IP Address of your RADIUS server. 6. Next to Port, enter the port you are using for your RADIUS server. 1812 is the default port. 7. Next to Shared Secret, enter the security key. 8. If you have a secondary RADIUS server, enter its IP address, port, and secret key. 9. Click Save Settings to save your settings. Note: When using EAP mode, you cannot have WPS enabled. D-Link DIR-400 User Manual 7

Section 5 - Connecting to a Wireless Network Connecting to a Wireless Network Using Windows XP Windows XP users may use XPs built-in wireless utility (Zero Configuration Utility). The following instructions are for Service Pack  users. If you are using another utility or Windows 000, please refer to the user manual of your wireless adapter for help with connecting to a wireless network. Most utilities will have a site survey option similar to the Windows XP utility as seen below. If you receive the Wireless Networks Detected bubble, click on the center of the bubble to access the utility. or Right-click on the wireless computer icon in your system tray

(lower-right corner next to the time). Select View Available Wireless Networks. The utility will display any available wireless networks in your area. Click on a network (displayed using the SSID) and click the Connect button. If you get a good signal but cannot access the Internet, check your TCP/IP settings for your wireless adapter. Refer to the Networking Basics section in this manual for more information. D-Link DIR-400 User Manual 73 Section 5 - Connecting to a Wireless Network Configure WEP It is recommended to enable WEP encryption on your wireless router or access point before configuring your wireless adapter. If you are joining an existing network, you will need to know the WEP key being used. 1. Open the Windows XP Wireless Utility by right-clicking on the wireless computer icon in your system tray

(lower-right corner of screen). Select View Available Wireless Networks. 2. Highlight the wireless network (SSID) you would like to connect to and click Connect. D-Link DIR-400 User Manual 74 Section 5 - Connecting to a Wireless Network 3. The Wireless Network Connection box will appear. Enter the same WEP key that is on your router and click Connect. It may take 0-30 seconds to connect to the wireless network. If the connection fails, please verify that the WEP settings are correct. The WEP key must be exactly the same as on the wireless router. D-Link DIR-400 User Manual 75 Section 5 - Connecting to a Wireless Network Configuring WPA-PSK It is recommended to enable WPA-PSK encryption on your wireless router or access point before configuring your wireless adapter. If you are joining an existing network, you will need to know the WPA-PSK passphrase being used. 1. Open the Windows XP Wireless Utility by right-clicking on the wireless computer icon in your system tray

(lower-right corner of screen). Select View Available Wireless Networks. 2. Highlight the wireless network (SSID) you would like to connect to and click Connect. D-Link DIR-400 User Manual 76 Section 5 - Connecting to a Wireless Network 3. The Wireless Network Connection box will appear. Enter the WPA-PSK passphrase and click Connect. It may take 0-30 seconds to connect to the wireless network. If the connection fails, please verify that the WPA-PSK settings are correct. The WPA-PSK passphrase must be exactly the same as on the wireless router. D-Link DIR-400 User Manual 77 Section 6 - Setting Up Wi-Fi Protection (WCN .0 in Windows Vista) Setting Up Wi-Fi Protection

(WCN 2.0 in Windows Vista) The DIR-400 supports Wi-Fi protection, referred to as WCN .0 in Windows Vista. The instructions for setting this up depend on whether you are using Windows Vista or third party software to configure the router. Initial Router Configuration for Wi-Fi Protection When you first set up the router, Wi-Fi protection is disabled and unconfigured. To enjoy the benefits of Wi-Fi protection, the router must be both enabled and configured. There are three basic methods to accomplish this: use Windows Vistas built-in support for WCN .0, use software provided by a third party, or use the traditional Ethernet approach. If you are running Windows Vista, tick the Enable checkbox on the Wireless Network window. You can choose to use the Current PIN that is displayed on the Wireless Network window, randomly create a new PIN by clicking Generate New PIN, or click on Reset PIN to Default to use the default PIN. If you are using third party software to set up Wi-Fi Protection, carefully follow the directions provided with the software. When you are finished, proceed to the next section to set up the newly-configured router. D-Link DIR-400 User Manual 78 Section 6 - Setting Up Wi-Fi Protection (WCN .0 in Windows Vista) Setting Up a Configured Router Once the router has been configured, you can use the push button on the router or in the third party software interface to invite a newcomer to join your Wi-Fi protected network. For maximum security, the software method is recommended. However, the push button method is ideal if there is no access to a UI. If you are using the routers Wi-Fi Security push button option, press the Wi-Fi Protected Setup button on the side of the router, then push the button on the client (or virtual button on the clients UI) within  minutes. Next click Finish. The Clients software will then allow a newcomer to join your secure, Wi-Fi protected network. If you are using third party software, run the appropriate Wi-Fi Protected System utility. You will be asked to either use the push button method or to manually enter the PIN. Follow the on-screen instructions to finish setting up your connection. D-Link DIR-400 User Manual 79 Section 7 - Changing the Computer Name and Joining a Workgroup Changing the Computer Name and Joining a Workgroup The following are step-by-step directions to change the computer name and join a workgroup. 1. Right-click on Control Panel and click on Properties. 2. Click on the Advanced system settings link. D-Link DIR-400 User Manual 80 Section 7 - Changing the Computer Name and Joining a Workgroup 3. Click the Computer Name tab in the System Properties window and enter a description of your computer in the text box. When you are finished, click the Change button. 4. o to the Computer Name/Domain Changes window and click the radio button next to the Workgroup you want to join. When you are finished, click the OK button. D-Link DIR-400 User Manual 81 Section 8 - Configuring the IP Address in Vista Configuring the IP Address in Vista The following are step-by-step directions to configure the IP address in Windows Vista. 1. Right-click on Network and click on Properties. 2. o to the Network and Internet window and click the appropriate Local Area Connection icon. 3. Right-click the Local Area Connection icon and then select Properties from the context menu. D-Link DIR-400 User Manual 8

Section 8 - Configuring the IP Address in Vista 4. Tick the Internet Protocol Version 4 (TCP/IPv4) checkbox in the Networking tab in the Local Area Connection Properties window, then click on the Properties button. 5. Click the Use the following IP address option in the General tab in the Local Area Connections Properties window and enter the desired IP address in the space offered. Then click the Use the following DNS server adresses option on the same tab and enter the desired DNS server information. Click OK, then OK again to exit the Properties windows. D-Link DIR-400 User Manual 83 Section 8 - Configuring the IP Address in Vista 6. Right-click the Local Area Connection icon and then select Status from the drop-down menu. 7. o to the Local Area Connection Status window and click the Details button. 8. Confirm your new settings on the Network Connection Status window. When you are finished, click the Done button. D-Link DIR-400 User Manual 84 Section 9 - Connecting to a Secured Wireless Network (WEP, WPA-PSK & WPA2-PSK) Connecting to a Secured Wireless Network

(WEP, WPA-PSK & WPA2-PSK) The following are step-by-step directions to set up a wireless connection. 1. Right-click on Network and click on Properties. 2. Click the Manage network connections link in the Network and Sharing Center window. D-Link DIR-400 User Manual 85

Section 9 - Connecting to a Secured Wireless Network (WEP, WPA-PSK & WPA2-PSK) 3. Right-click the Wireless Network Connection entry and then select Connect/Disconnect from the drop-down menu. 4. Select a network to connect to in the Select a network to connect to window and then click the Connect button. 5. The following window displays connection progress. D-Link DIR-400 User Manual 86 Section 9 - Connecting to a Secured Wireless Network (WEP, WPA-PSK & WPA2-PSK) 6. Enter the network security key or passphrase for the router in the textbox provided in the Type the network security key or passphrase for [SSID name] window. When you are finished, click the Connect button. 7. The following Successfully connected to [SSID name]

window is displayed. Choose to save to the network and/

or Start this new connection automatically. When you are finished, click the Close button. 8. The successful connection is displayed at the bottom of the Windows start up menu. D-Link DIR-400 User Manual 87 Section 9 - Connecting to a Secured Wireless Network (WEP, WPA-PSK & WPA2-PSK) 9. You can confirm your new settings by calling up the command prompt and then entering the ipconfig command. 10. To test the new IP address, use the ping command. D-Link DIR-400 User Manual 88 Section 10 - Connecting to an Unsecured Wireless Network Connecting to an Unsecured Wireless Network The following are step-by-step directions to set up an unsecured wireless connection. 1. Right-click on Network and click on Properties. 2. o to the Network and Sharing Center window and click the Manage Network Connections link. D-Link DIR-400 User Manual 89 Section 10 - Connecting to an Unsecured Wireless Network 3. Right-click the Wireless Network Connection entry and then select Connect/Disconnect from the drop-down menu. 4. Select a network to connect to in the Select a network to connect to window and then click the Connect button. 5. Confirm that you still want to connect on the following Network Connection Status window by clicking on Connect Anyway. D-Link DIR-400 User Manual 90 Section 10 - Connecting to an Unsecured Wireless Network 6. The following Connect to a network wizard window displays the connection progress. 7. The following Successfully connected to [SSID name]

window is displayed. Choose to save to the network and/

or start the new connection automatically. When you are finished, click the Close button. 8. The successful connection is displayed at the bottom of the Windows start up menu. D-Link DIR-400 User Manual 91 Section 10 - Connecting to an Unsecured Wireless Network 9. You can confirm your new settings by calling up the command prompt and then entering the ipconfig command. 10. To test the new IP address, use the ping command. D-Link DIR-400 User Manual 9

Section 11 - Troubleshooting Troubleshooting This chapter provides solutions to problems that can occur during the installation and operation of the DIR-400. Read the following descriptions if you are having problems. 1. Why cant I access the web-based configuration utility?

When entering the IP address of the D-Link router (19.168.0.1 for example), you are not connecting to a website on the Internet nor do you have to be connected to the Internet. The device has the utility built into a ROM chip located in the device itself. Your computer must be on the same IP subnet to connect to the web-based utility. Make sure you have an updated Java-enabled web browser. We recommend using one of the following:

Internet Explorer 6.0 or higher Firefox 1.5 or higher Netscape 8 or higher Mozilla 1.7.1 (5.0) or higher Opera 8.5 or higher Safari 1. or higher (with Java 1.3.1 or higher) Camino 0.8.4 or higher Verify physical connectivity by checking for solid link lights on the device. If you do not get a solid link light, try using a different cable or connect to a different port on the device if possible. If the computer is turned off, the link light may not be on. Disable any internet security software running on the computer. Software firewalls such as Zone Alarm, Black Ice, Sygate, Norton Personal Firewall, and Windows XPs firewall may block access to the configuration pages. Check the help files included with your firewall software for more information on disabling or configuring it. D-Link DIR-400 User Manual 93 Section 11 - Troubleshooting Configure your Internet settings:

o to Start > Settings > Control Panel. Double-click the Internet Options Icon. From the Security tab, click the Default Level button to restore the settings to their defaults. Click the Connection tab and set the dial-up option to Never Dial a Connection. Click the LAN Settings button. Make sure nothing is checked. Click OK. o to the Advanced tab and click the button to restore these settings to their defaults. Click OK three times. Close your web browser (if open) and open it. Access the routers web management. Open your web browser and enter the IP address of your D-Link router in the address bar. This should open Open your web browser and enter the IP address of your D-Link router in the address bar. This should open the login page for web management. If you still cannot access the routers configuration pages, unplug the power to the router for 10 seconds and plug back in. Wait about 30 seconds and try accessing the configuration. If you have multiple computers, try connecting using a different computer. 2. What can I do if I forgot my password?

If you forgot your password, you must reset your router. Unfortunately this process will change all your settings back to the factory defaults. To reset the router, locate the reset button (hole) on the rear panel of the unit. With the router powered on, use an unfolded paperclip to hold the reset button down for 10 seconds. Release the button and the router will go through its reboot process. Wait about 30 seconds to access the router. The default IP address is 19.168.0.1. When logging in, the username is admin and you should leave the password box empty. D-Link DIR-400 User Manual 94 Section 11 - Troubleshooting 3. Why cant I connect to certain sites or send and receive emails when connecting through my router?

If you are having a problem sending or receiving email, or connecting to secure sites such as eBay, banking sites, and/or Hotmail, we suggest gradually lowering the MTU in increments of ten (Ex. 149, 148, 147, etc). Note: AOL DSL+ users must use MTU of 1400. To find the proper MTU Size, youll have to do a special ping of the destination youre trying to go to. A destination could be another computer, or a URL. Click on Start and then click Run. Type in command and press Enter (or click OK). Once the window opens, youll need ping a URL. Use the following syntax:

ping [url] [-f] [-l] [MTU value]

Example: ping yahoo.com -f -l 1472 D-Link DIR-400 User Manual 95 Section 11 - Troubleshooting You should start at 147 and decrease the MTU value by 10 until you get a reply. Once you get a reply, increase the MTU value by  until you get a fragmented packet. Take that value and add 8 to the value to account for the various TCP/IP headers. For example, lets say that 145 was the proper value, the actual MTU size should be 1480, which would be the optimum value for the network were working with (145+8=1480). Once you find your MTU, you can now configure your router with the proper MTU size. To change the MTU rate on your router follow the steps below:

Open your browser, and go to the IP address of your router (19.168.0.1). Enter your username (admin) and password (blank by default). Click OK to enter the web configuration page for the device. Click on Setup and then click Manual Configure. To change the MTU enter the number in the MTU field and click the Save Settings button to save your settings. Try going to a website or checking your e-mail. If changing the MTU does not resolve the problem, continue changing the MTU in increments of ten. D-Link DIR-400 User Manual 96 Appendix A - Wireless Basics Wireless Basics D-Link wireless products are based on industry standards to provide compatible, easy-to-use high-speed wireless connectivity within your home, business or public access wireless networks. Strictly adhering to the IEEE standard, the D-Link wireless family of products will allow you to securely access the data you want, when and where you want it. You will be able to enjoy the freedom that wireless networking delivers. A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals instead of wires. Wireless LANs are used increasingly in both home and office environments, and in public areas such as airports, coffee shops and universities. Innovative ways to utilize WLAN technology are helping people work and communicate more efficiently. Increased mobility and the absence of cabling and other fixed infrastructure have proven to be beneficial for many users. Wireless users can use the same applications they use on a wired network. Wireless adapter cards used on laptop and desktop systems support the same protocols as Ethernet adapter cards. Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in order to use servers, printers or an Internet connection supplied through the wired LAN. A wireless router is a device used to provide this link. D-Link DIR-400 User Manual 97 Appendix A - Wireless Basics What is Wireless?

Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi uses radio frequencies to connect wirelessly, so you have the freedom to place computers anywhere in your home or office while keeping them connected to your network. Why D-Link Wireless?

D-Link is the worldwide leader and award-winning designer, developer, and manufacturer of networking products. D-

Link delivers the performance you need at a price you can afford. D-Link has all the products you need to build your network. How does wireless work?

Wireless works similarly to how cordless phones work, using radio signals to transmit data from point A to point B. But wireless technology has restrictions as to how you can access the network. You must be within the wireless network range to be able to connect your computer. There are two different types of wireless networks: Wireless Local Area Networks (WLAN), and Wireless Personal Area Networks (WPAN). Wireless Local Area Network (WLAN) In a wireless local area network, a device called an Access Point (AP) connects computers to the network. The access point has a small antenna attached to it, which allows it to transmit data back and forth over radio signals. With an indoor access point, the signal can travel up to 300 feet. With an outdoor access point, the signal can extend up to 30 miles to serve locations such as manufacturing plants, industrial locations, college and high school campuses, airports, golf courses, and many other outdoor venues. D-Link DIR-400 User Manual 98 Appendix A - Wireless Basics Wireless Personal Area Network (WPAN) Bluetooth is the industry standard wireless technology used for WPANs. Bluetooth devices in a WPAN operate in a range of up to 30 feet away. Compared to WLANs, the speed and wireless operation range are both less, but in return Bluetooth doesnt use nearly as much power, making it ideal for personal devices such as mobile phones, PDAs, headphones, laptops, speakers, and other devices that operate on batteries. Who uses wireless?

Wireless technology as become so popular in recent years that almost everyone is using it; whether for home, office or business, D-Link has a wireless solution for it. Home ives everyone at home broadband access Surf the web, check email, send instant messages, etc. ets rid of the cables around the house Simple and easy to use Small Office and Home Office Stay on top of everything at home as you would at the office Remotely access your office network from home Share your Internet connection and printer with multiple computers No need to dedicate office space D-Link DIR-400 User Manual 99 Appendix A - Wireless Basics Where is wireless used?

Wireless technology is expanding everywhere, not just in the home or at the office. People like the freedom of mobility and it is becoming so popular that more and more public facilities now provide wireless access. Wireless connections in public places are usually called hotspots. Using a D-Link Cardbus Adapter with your laptop enables you to access hotspots and connect to the Internet from remote locations like airports, hotels, coffee shops, libraries, restaurants, and convention centers. Wireless networks are easy to set up, but if you are installing it for the first time, it could be quite a task not knowing where to start. That is why we have put together a few setup tips to help you through the process of setting up a wireless network. Wireless Setup Tips Here are a few things to keep in mind, when you install a wireless network. Centralize your router or access point Make sure you place the router/access point in a centralized location within your network for the best performance. Try to place the router/access point as high as possible in the room, so the signal is more evenly dispersed throughout your home. If you have a two-story home, you may need a repeater to boost the signal to extend the range. Eliminate Interference Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible from the router/access point. This will significantly reduce any interference that the appliances might cause from operating on the same frequency. D-Link DIR-400 User Manual 100 Appendix A - Wireless Basics Security Dont let your next-door neighbors or intruders connect to your wireless network. Secure your wireless network by turning on the WPA or WEP security feature on the router. Refer to the product manual for detailed information on how to set it up. Wireless Modes There are basically two modes of networking:

Infrastructure All wireless clients will connect to an access point or wireless router. Ad-Hoc This is directly connecting to another computer for peer-to-peer communication by using wireless network adapters on each computer, such as two or more WNA-330 wireless network Cardbus adapters. An Infrastructure network contains an access point or wireless router. All the wireless devices(clients) will connect to the wireless router or access point. An Ad-Hoc network contains only clients, such as laptops with wireless CardBus adapters. All the adapters must be in Ad-Hoc mode to communicate. D-Link DIR-400 User Manual 101 Appendix B - Networking Basics Networking Basics Checking your IP address After setting up your PCs connection to the router, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP server (i.e. wireless router) automatically. To verify your IP address, please follow the steps below. Click on Start > Run. In the run box type command and click OK. At the prompt, type ipconfig and press Enter. This will display the IP address, subnet mask, and the default gateway of your adapter. If the address is 0.0.0.0, check your adapter installation, security settings, and the settings on your router. Some firewall software programs may block a DHCP request on newly installed adapters. If you are connecting to a wireless network at a hotspot (e.g. hotel, coffee shop, airport), please contact an employee or administrator to verify their wireless network settings. D-Link DIR-400 User Manual 10

Appendix B - Networking Basics Assigning a static IP address If you are not using a DHCP capable gateway/router, or if you need to assign a static IP address, please follow the steps below:

Step 1 Windows XP - Click on Start > Control Panel > Network Connections. Windows 000 - From the desktop, right-click My Network Places > Properties. Step 2 Right-click on the Local Area Connection which represents your D-Link network adapter and select Properties. Step 3 Highlight Internet Protocol (TCP/IP) and click Properties. Step 4 Click Use the following IP address and enter an IP address that is on the same subnet as your network or the LAN IP address on your router. Example: If the routers LAN IP address is 19.168.0.1, make your IP address 19.168.0.X where X is a number between  and 99. Make sure that the number you choose is not in use on the network. Set Default ateway the same as the LAN IP address of your router (19.168.0.1). Set Primary DNS the same as the LAN IP address of your router (19.168.0.1). The Secondary DNS is not needed, though you may enter a DNS server from your ISP. Step 5 Click OK twice to save your settings. D-Link DIR-400 User Manual 103 Appendix C - Technical Specifications Technical Specifications Standards IEEE 80.11g IEEE 80.11b IEEE 80.3 IEEE 80.3u Wireless Signal Rates*

108Mbps 48Mbps

4Mbps 1Mbps 9Mbps 5.5Mbps 1Mbps 1Mbps 54Mbps 36Mbps 18Mbps 11Mbps 6Mbps

Mbps Security WPA - Wi-Fi Protected Access (TKIP, MIC, IV Expansion, Shared Key Authentication) 80.1x 64/18-bit WEP Modulation Technology Orthogonal Frequency Division Multiplexing (OFDM) Receiver Sensitivity 54Mbps OFDM, 10% PER,-68dBm) 48Mbps OFDM, 10% PER,-68dBm) 36Mbps OFDM, 10% PER,-75dBm)

4Mbps OFDM, 10% PER,-79dBm) 18Mbps OFDM, 10% PER,-8dBm) 1Mbps OFDM, 10% PER,-84dBm) 11Mbps CCK, 8% PER,-82dBm) 9Mbps OFDM, 10% PER,-87dBm) 6Mbps OFDM, 10% PER,-88dBm) 5.5Mbps CCK, 8% PER,-85dBm) 2Mbps QPSK, 8% PER,-86dBm) 1Mbps BPSK, 8% PER,-89dBm) VPN Pass Through/ Multi-Sessions PPTP LTP IPSec Device Management Web-based Internet Explorer v6 or later; Mozilla Firefox 1.5 or later; or another Java-enabled browser DHCP Server and Client Wireless Frequency Range

.4Hz to .46Hz Wireless Operating Range

Indoors - up to 38 ft. (100 meters) Outdoors- up to 131 ft. (400 meters) Wireless Transmit Power 15dBm dBm External Antenna Type Single detachable reverse SMA D-Link DIR-400 User Manual 104 Appendix C - Technical Specifications Advanced Firewall Features NAT with VPN Pass-through (Network Address Translation) MAC Filtering IP Filtering URL Filtering Domain Blocking Scheduling Weight 7.8 oz (0.kg) Warranty 1 Year Operating Temperature 3F to 131F ( 0C to 55C) Humidity 95% maximum (non-condensing) Safety and Emissions FCC LEDs Power Status WAN WLAN (Wireless Connection) LAN (10/100) Dimensions L = 5.6 (14mm) W = 4.3 (109mm) H = 1. inches (31mm)

* 108Mbps Turbo mode operates only with other D-Link 108 G products. Maximum wireless signal rate derived from IEEE Standard 802.11g specifications. 108Mbps Turbo mode operates only with other D-Link 108 G products. Maximum wireless signal rate derived from IEEE Standard 802.11g specifications. Maximum wireless signal rate derived from IEEE Standard 802.11g specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead, lower actual data throughput rate. Environmental factors will adversely affect wireless signal range. D-Link DIR-400 User Manual 105 Appendix D - Contacting Technical Support Contacting Technical Support D-Link provides free technical support for customers within the United States and within Canada for the duration of the warranty period on this product. U.S. and Canadian customers can contact D-Link technical support through our web site or by phone. Before you contact technical support, please have the following ready:

Model number of the product (e.g. DIR-400) Hardware Revision (located on the label on the bottom of the router (e.g. rev A1)) Serial Number (s/n number located on the label on the bottom of the router). You can find software updates and user documentation on the D-Link website as well as frequently asked questions and answers to technical issues. For customers within the United States:

Phone Support:

(877) 453-5465 24 hours a day, seven days a week. Internet Support:

http://support.dlink.com support@dlink.com For customers within Canada:

Phone Support:

(800) 361-5265 Monday to Friday 7:30am to 9:00pm EST Internet Support:

http://support.dlink.ca email:support@dlink.ca D-Link DIR-400 User Manual 106 Appendix E - Warranty Warranty Subject to the terms and conditions set forth herein, D-Link Systems, Inc. (D-Link) provides this Limited Warranty:

Only to the person or entity that originally purchased the product from D-Link or its authorized reseller or distributor, and Only for products purchased and delivered within the fifty states of the United States, the District of Columbia, U.S. Possessions or Protectorates, U.S. Military Installations, or addresses with an APO or FPO. Limited Warranty:

D-Link warrants that the hardware portion of the D-Link product described below (Hardware) will be free from material defects in workmanship and materials under normal use from the date of original retail purchase of the product, for the period set forth below (Warranty Period), except as otherwise stated herein. Hardware (excluding power supplies and fans): One (1) year Power supplies and fans: One (1) year Spare parts and spare kits: Ninety (90) days The customers sole and exclusive remedy and the entire liability of D-Link and its suppliers under this Limited Warranty will be, at D-Links option, to repair or replace the defective Hardware during the Warranty Period at no charge to the original owner or to refund the actual purchase price paid. Any repair or replacement will be rendered by D-Link at an Authorized D-Link Service Office. The replacement hardware need not be new or have an identical make, model or part. D-Link may, at its option, replace the defective Hardware or any part thereof with any reconditioned product that D-Link reasonably determines is substantially equivalent (or superior) in all material respects to the defective Hardware. Repaired or replacement hardware will be warranted for the remainder of the original Warranty Period or ninety (90) days, whichever is longer, and is subject to the same limitations and exclusions. If a material defect is incapable of correction, or if D-Link determines that it is not practical to repair or replace the defective Hardware, the actual price paid by the original purchaser for the defective Hardware will be refunded by D-Link upon return to D-Link of the defective Hardware. All Hardware or part thereof that is replaced by D-Link, or for which the purchase price is refunded, shall become the property of D-Link upon replacement or refund. D-Link DIR-400 User Manual 107 Appendix E - Warranty Limited Software Warranty:

D-Link warrants that the software portion of the product (Software) will substantially conform to D-Links then current functional specifications for the Software, as set forth in the applicable documentation, from the date of original retail purchase of the Software for a period of ninety (90) days

(Software Warranty Period), provided that the Software is properly installed on approved hardware and operated as contemplated in its documentation. D-Link further warrants that, during the Software Warranty Period, the magnetic media on which D-Link delivers the Software will be free of physical defects. The customers sole and exclusive remedy and the entire liability of D-Link and its suppliers under this Limited Warranty will be, at D-Links option, to replace the non-conforming Software (or defective media) with software that substantially conforms to D-Links functional specifications for the Software or to refund the portion of the actual purchase price paid that is attributable to the Software. Except as otherwise agreed by DLink in writing, the replacement Software is provided only to the original licensee, and is subject to the terms and conditions of the license granted by D-Link for the Software. Replacement Software will be warranted for the remainder of the original Warranty Period and is subject to the same limitations and exclusions. If a material non-conformance is incapable of correction, or if D-Link determines in its sole discretion that it is not practical to replace the non-conforming Software, the price paid by the original licensee for the non-conforming Software will be refunded by D-Link; provided that the non-conforming Software (and all copies thereof) is first returned to D-Link. The license granted respecting any Software for which a refund is given automatically terminates. Non-Applicability of Warranty:

The Limited Warranty provided hereunder for Hardware and Software portions of D-Links products will not be applied to and does not cover any refurbished product and any product purchased through the inventory clearance or liquidation sale or other sales in which D-Link, the sellers, or the liquidators expressly disclaim their warranty obligation pertaining to the product and in that case, the product is being sold As-Is without any warranty whatsoever including, without limitation, the Limited Warranty as described herein, notwithstanding anything stated herein to the contrary. Submitting A Claim:

The customer shall return the product to the original purchase point based on its return policy. In case the return policy period has expired and the product is within warranty, the customer shall submit a claim to D-Link as outlined below:

The customer must submit with the product as part of the claim a written description of the Hardware defect or Software nonconformance in sufficient detail to allow DLink to confirm the same, along with proof of purchase of the product (such as a copy of the dated purchase invoice for the product) if the product is not registered. The customer must obtain a Case ID Number from D-Link Technical Support at 1-877-453-5465, who will attempt to assist the customer in resolving any suspected defects with the product. If the product is considered defective, the customer must obtain a Return Material Authorization (RMA) number by completing the RMA form and entering the assigned Case ID Number at https://rma.dlink.com/. After an RMA number is issued, the defective product must be packaged securely in the original or other suitable shipping package to ensure that it will not be damaged in transit, and the RMA number must be prominently marked on the outside of the package. Do D-Link DIR-400 User Manual 108 Appendix E - Warranty not include any manuals or accessories in the shipping package. DLink will only replace the defective portion of the product and will not ship back any accessories. The customer is responsible for all in-bound shipping charges to D-Link. No Cash on Delivery (COD) is allowed. Products sent COD will either be rejected by D-Link or become the property of D-Link. Products shall be fully insured by the customer and shipped to D-Link Systems, Inc., 17595 Mt. Herrmann, Fountain Valley, CA 92708. D-Link will not be held responsible for any packages that are lost in transit to D-Link. The repaired or replaced packages will be shipped to the customer via UPS Ground or any common carrier selected by D-Link. Return shipping charges shall be prepaid by D-Link if you use an address in the United States, otherwise we will ship the product to you freight collect. Expedited shipping is available upon request and provided shipping charges are prepaid by the customer. D-Link may reject or return any product that is not packaged and shipped in strict compliance with the foregoing requirements, or for which an RMA number is not visible from the outside of the package. The product owner agrees to pay D-Links reasonable handling and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing requirements, or that is determined by D-Link not to be defective or non-conforming. What Is Not Covered:

The Limited Warranty provided herein by D-Link does not cover:

Products that, in D-Links judgment, have been subjected to abuse, accident, alteration, modification, tampering, negligence, misuse, faulty installation, lack of reasonable care, repair or service in any way that is not contemplated in the documentation for the product, or if the model or serial number has been altered, tampered with, defaced or removed; Initial installation, installation and removal of the product for repair, and shipping costs; Operational adjustments covered in the operating manual for the product, and normal maintenance; Damage that occurs in shipment, due to act of God, failures due to power surge, and cosmetic damage; Any hardware, software, firmware or other products or services provided by anyone other than D-Link; and Products that have been purchased from inventory clearance or liquidation sales or other sales in which D-Link, the sellers, or the liquidators expressly disclaim their warranty obligation pertaining to the product. While necessary maintenance or repairs on your Product can be performed by any company, we recommend that you use only an Authorized D-Link Service Office. Improper or incorrectly performed maintenance or repair voids this Limited Warranty. Disclaimer of Other Warranties:

EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN, THE PRODUCT IS PROVIDED AS-IS WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IF ANY IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY TERRITORY WHERE A PRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE LIMITED TO THE DURATION OF THE APPLICABLE WARRANTY PERIOD SET FORTH ABOVE. EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN, THE ENTIRE RISK AS TO THE QUALITY, D-Link DIR-400 User Manual 109 Appendix E - Warranty SELECTION AND PERFORMANCE OF THE PRODUCT IS WITH THE PURCHASER OF THE PRODUCT. Limitation of Liability:

TO THE MAXIMUM EXTENT PERMITTED BY LAW, D-LINK IS NOT LIABLE UNDER ANY CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR ANY LOSS OF USE OF THE PRODUCT, INCONVENIENCE OR DAMAGES OF ANY CHARACTER, WHETHER DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL (INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR LOSS OF GOODWILL, LOSS OF REVENUE OR PROFIT, WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, FAILURE OF OTHER EQUIPMENT OR COMPUTER PROGRAMS TO WHICH D-LINKS PRODUCT IS CONNECTED WITH, LOSS OF INFORMATION OR DATA CONTAINED IN, STORED ON, OR INTEGRATED WITH ANY PRODUCT RETURNED TO D-LINK FOR WARRANTY SERVICE) RESULTING FROM THE USE OF THE PRODUCT, RELATING TO WARRANTY SERVICE, OR ARISING OUT OF ANY BREACH OF THIS LIMITED WARRANTY, EVEN IF D-LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE SOLE REMEDY FOR A BREACH OF THE FOREGOING LIMITED WARRANTY IS REPAIR, REPLACEMENT OR REFUND OF THE DEFECTIVE OR NONCONFORMING PRODUCT. THE MAXIMUM LIABILITY OF D-LINK UNDER THIS WARRANTY IS LIMITED TO THE PURCHASE PRICE OF THE PRODUCT COVERED BY THE WARRANTY. THE FOREGOING EXPRESS WRITTEN WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY OTHER WARRANTIES OR REMEDIES, EXPRESS, IMPLIED OR STATUTORY. Governing Law:

This Limited Warranty shall be governed by the laws of the State of California. Some states do not allow exclusion or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts, so the foregoing limitations and exclusions may not apply. This Limited Warranty provides specific legal rights and you may also have other rights which vary from state to state. Trademarks:

D-Link is a registered trademark of D-Link Systems, Inc. Other trademarks or registered trademarks are the property of their respective owners. Copyright Statement:

No part of this publication or documentation accompanying this product may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems, Inc., as stipulated by the United States Copyright Act of 1976 and any amendments thereto. Contents are subject to change without prior notice. Copyright 2005-2007 by D-Link Corporation/D-Link Systems, Inc. All rights reserved. CE Mark Warning:

This is a Class B product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures. D-Link DIR-400 User Manual 110 Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. FCC Statement:

This equipment has been tested and found to comply with the limits 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 in accordance with 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 can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. IMPORTANT NOTE:

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user. Industry Canada Statement This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. IMPORTANT NOTE:

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 minimum distance 20cm between the radiator & your body. This device has been designed to operate with an antenna having a maximum gain of 2 dB. Antenna having a higher gain is strictly prohibited per regulations of Industry Canada. The required antenna impedance is 50 ohms. This device complies with RSS-210 of the Industry Canada Rules. 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 To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the EIRP is not more than required for successful communication.