WR54XG Wireless Router Users Manual 2

 

COPYRIGHT & TRADEMARKS is a registered Specifications are subject to change without notice. trademark of TP-LINK Technologies Co., Ltd. Other brands and product names are trademarks or registered trademarks of their respective holders. No part of the specifications 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 TP-LINK Technologies Co., Ltd. Copyright 2005 TP-LINK Technologies Co., Ltd. All rights reserved. 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 or more of the following measures:

Reorient or relocate the receiving antenna.

Connect the equipment into an outlet on a circuit different from that to which the Increase the separation between the equipment and receiver. receiver is connected.

Consult the dealer or an experienced radio/TV technician for help. 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.

(2) This device must accept any interference received, including interference that may cause undesired operation. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC RF Radiation Exposure Statement:

This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This device and its antenna must not be co-located or operating in conjunction with any other antenna or transmitter. To comply with FCC RF exposure compliance requirements, the antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. CE Declaration of Conformity For the following equipment: TL-WR541G Is herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Laws of the Member States relating to Electromagnetic Compatibility

(89/336/EEC), Low-voltage Directive (73/23/EEC) and the Amendment Directive (93/68/EEC), the procedures given in European Council Directive 99/5/EC and 89/3360EEC. The equipment was passed. The test was performed according to the following European standards:

EN 300 328 V.1.4.1 (2003)

EN 301 489-1 V.1.4.1 (2002) / EN 301 489-17 V.1.2.1 (2002)

EN 60950-1: 2001

EN 55022: 1998 + A1: 2000 + A2: 2003

EN61000-3-2:2001

EN61000-3-3:2001

EN 55024: 1998 +A1: 2001 + A2: 2003 European standards dictate maximum radiated transmit power of 100mW EIRP and frequency range 2.400-2.4835GHz; In France, the equipment must be restricted to the 2.4465-2.4835GHz frequency range and must be restricted to indoor use. Package contents.............................................................................................................. 1 Chapter 1: About this Guide .............................................................................................. 2 1.1 Purposes.............................................................................................................. 2 1.2 Conventions......................................................................................................... 2 1.3 Overview of this User Guide ................................................................................ 2 Chapter 2: Introduction...................................................................................................... 3 2.1 Overview of the Router ........................................................................................ 3 2.2 Features............................................................................................................... 3 2.3 Panel Layout ........................................................................................................ 4 2.3.1 The Front Panel ......................................................................................... 4 2.3.2 The Rear Panel.......................................................................................... 4 Chapter 3: Connecting the Router..................................................................................... 6 3.1 System Requirements.......................................................................................... 6 3.2 Installation Environment Requirements................................................................ 6 3.3 Connecting the Router ......................................................................................... 6 Chapter 4: Quick Installation Guide................................................................................... 8 4.1 TCP/IP configuration ............................................................................................ 8 4.2 Quick Installation Guide ....................................................................................... 9 Chapter 5: Configuring the Router .................................................................................. 13 5.1 login ................................................................................................................... 13 5.2 Status................................................................................................................. 13 5.3 Quick Setup ....................................................................................................... 14 5.4 Network.............................................................................................................. 14 5.4.1 LAN.......................................................................................................... 15 5.4.2 WAN......................................................................................................... 15 5.4.3 MAC Clone .............................................................................................. 19 5.5 Wireless ............................................................................................................. 20 5.5.1 Wireless Settings ..................................................................................... 20 5.5.2 MAC Filtering ........................................................................................... 23 5.5.3 Wireless Statistics.................................................................................... 25 5.6 DHCP................................................................................................................. 26 5.6.1 DHCP Settings......................................................................................... 26 5.6.2 DHCP Clients List .................................................................................... 27 5.6.3 Address Reservation................................................................................ 28 5.7 Forwarding......................................................................................................... 29 5.7.1 Virtual Servers ......................................................................................... 29 5.7.2 Port Triggering ......................................................................................... 31 5.7.3 DMZ......................................................................................................... 33 5.7.4 UPnP ....................................................................................................... 33 5.8 Security.............................................................................................................. 34 5.8.1 Firewall .................................................................................................... 34 5.8.2 IP Address Filtering.................................................................................. 35 5.8.3 Domain Filtering....................................................................................... 37 5.8.4 MAC Filtering ........................................................................................... 38 5.8.5 Remote Management .............................................................................. 40 5.8.6 Advanced Security ................................................................................... 41 5.9 Static Routing..................................................................................................... 42 5.10 DDNS............................................................................................................... 43 5.10.1 Oray.net DDNS...................................................................................... 44 5.10.2 Comexe.cn DDNS.................................................................................. 44 5.11 System Tools.................................................................................................... 45 5.11.1 Firmware ................................................................................................ 46 5.11.2 Factory Defaults ..................................................................................... 46 5.11.3 Reboot ................................................................................................... 47 5.11.4 Password ............................................................................................... 47 5.11.5 Log ......................................................................................................... 48 5.11.6 Statistics................................................................................................. 48 Appendix A: FAQ............................................................................................................. 50 Appendix B: Configuring the PCs.................................................................................... 54 Appendix C: Specifications.............................................................................................. 59 Appendix D: Glossary ..................................................................................................... 60 Appendix E: Contact Information..................................................................................... 62 TL-WR541G 54M Wireless Router User Guide Package contents The following contents should be found in your box:

One TL-WR541G 54Mbps Wireless Router

One AC power Adapter for TL-WR541G 54Mbps Wireless Router

Quick Installation Guide

One Resource CD for TL-WR541G 54Mbps Wireless Router, including:

This Guide Other Helpful Information

Wall-mounting screws Note: If any of the listed contents are damaged or missing, please contact the retailer from whom you purchased the TL-WR541G 54Mbps Wireless Router for assistance.

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TL-WR541G 54M Wireless Router User Guide Chapter 1: About this Guide Thank you for choosing the TL-WR541G 54Mbps Wireless Router. This router provides dedicated solution for Small Office/Home Office (SOHO) networks. With your network all connected, your local wired or wireless network can share Internet access, files and fun for multiple PCs through one ISP account. It adopts 2x to 3x eXtended RangeTM WLAN transmission technology so that transmission distance is 2-3 times of traditional IEEE 802.11g/b solutions, up to 855.36m tested in China. Transmission range is extended to 4-9 times. It is an easy, web-based setup for installation and management. Even though you may not be familiar with the router, this guide will make configuring the router easy. Before installing the router, please look through this guide to get to know all the routers functions. 1.1 Purposes This Guide tells you how to use the TL-WR541G 54Mbps Wireless Router. 1.2 Conventions The router mentioned in this guide stands for TL-WR541G 54Mbps Wireless Router. 1.3 Overview of this User Guide Chapter 1: About this Guide Chapter 2: Introduction Chapter 3: Connecting the Router Chapter 4: Quick Installation Guide Chapter 5: Configuring the Router Appendix A: FAQ Appendix B: Configuring the PCs Appendix C: Specifications Appendix D: Glossary Appendix E: Contact Information

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TL-WR541G 54M Wireless Router User Guide Chapter 2: Introduction 2.1 Overview of the Router The TL-WR541G 54Mbps Wireless Router integrates 4-port Switch, firewall, NAT-router and Wireless AP. Its design is dedicated to Small Office/Home Office (SOHO) wireless network solutions. The TL-WR541G 54Mbps Wireless Router will allow you to connect your network wirelessly better than ever, sharing Internet Access, files and fun, easily and securely. In the most attentive wireless security, the TL-WR541G 54Mbps Wireless Router provides multiple protection measures. It can be set to turn off wireless network name

(SSID) broadcast so that only stations that have the SSID can be connected. The router provides wireless LAN 64/128/152-bit WEP encryption security, and WPA and WPA-PSK authentication, as well as TKIP/AES encryption security. It also supports VPN pass-through for sensitive data secure transmission. The TL-WR541G 54Mbps Wireless Router complies with the IEEE 802.11g/b standards so that the data transmission rate is up to 54Mbps. It adopts 2x to 3x eXtended RangeTM WLAN transmission technology so that transmission distance is 2-3 times of traditional IEEE 802.11g/b solutions, up to a distance of 855.36m tested in China. Transmission range is extended to 4-9 times. It is compatible with all IEEE 802.11b products. The TL-WR541G 54Mbps Wireless Router has built-in NAT and DHCP server supporting static IP address distributing. It also supports Virtual Server and DMZ host for Port Triggering needs, and remote management and log so that network administrators can manage and monitor the network on real time. The TL-WR541G 54Mbps Wireless Router is easy-to-manage. Quick Setup is supported and friendly help messages are provided for every step. So you can configure it quickly and share Internet access, files and fun. 2.2 Features

Complies with IEEE802.11g, IEEE802.11b, IEEE802.3, IEEE802.3u standards

Built in 4-port 10/100Mbps Switch

Ethernet connection to a WAN device, such as a cable modem or DSL modem

Adopts 2x to 3x eXtended RangeTM WLAN transmission technology

Shares data and Internet access for the network, connecting Internet through PPPoE on demand and disconnecting when idle

Supports 54/48/36/24/18/12/9/6/11/5.5/3/2/1Mbps wireless LAN data transfer rates

Provides 64/128/152-bit WEP encryption security

Provides WPA and WPA-PSK authentication and TKIP/AES encryption security

Provides wireless LAN ACL (Access Control List)

Built-in NAT and DHCP server supporting static IP address distributing

Supports Virtual Server, Port Triggering, and DMZ host

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TL-WR541G 54M Wireless Router User Guide

Built-in firewall supporting IP address filtering, Domain Name filtering, and MAC address filtering Ignores Ping packets from WAN or LAN ports

Supports TCP/IP, PPPoE, DHCP, ICMP, NAT

Supports UPnP, Dynamic DNS, Static Routing, VPN pass-through

Supports Traffic Stat.

Supports ICMP-FLOOD, UDP-FLOOD, TCP-SYN-FLOOD filter

Supports firmware upgrade

Supports Remote and Web management 2.3 Panel Layout 2.3.1 The Front Panel The front panel of the TL-WR541G consists of several LED indicators, which is designed to indicate connections. Viewed from left to right. Table 2-1 describes the LEDs on the front panel of the router.

Name Power System Link/Act WLAN Figure 2-1: Front Panel sketch Action Description Not lit Lit up Lit up Flashing Not lit Not lit Lit up Flashing Not lit Flashing No Power Power on The router is initialising The router is working properly The router has a hardware error There is no device linked to the corresponding port There is a device linked to the corresponding port but no activity There is an active device linked to the corresponding port The Wireless Radio function is disabled The Wireless Radio function is enabled The LEDs description 2.3.2 The Rear Panel The rear panel contains the following features. (Viewed from left to right:)

Wireless antenna

Factory Default Reset button There are two ways to reset the router's factory defaults:

1) Use the Factory Defaults function on System Tools -> Factory Defaults page in the

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TL-WR541G 54M Wireless Router User Guide router's Web-based Utility. 2) Use the Factory Default Reset button: First, turn off the router's power. Second, press and hold the default reset button then turn on the router's power, until the system LED lights up

(about 3 seconds). Last, release the reset button and wait for the router to reboot. Note: Ensure the router is powered on before it restarts completely.

WAN RJ45 port for connecting the router to a cable, DSL modem or Ethernet

Four LAN 10/100Mbps RJ45 ports for connecting the router to the local PCs

AC power socket: only use the power adapter supplied with the TL-WR541G 54Mbps Wireless Router, use of a different adapter may result in product damage. WAN 1 2 3 4 RESET Figure 2-2 Rear Panel sketch

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TL-WR541G 54M Wireless Router User Guide Chapter 3: Connecting the Router 3.1 System Requirements

Broadband Internet Access Service (DSL/Cable/Ethernet)

One DSL/Cable modem that has an RJ45 connector (you do not need it if you connect the router to Ethernet)

Each PC on the LAN needs a working Ethernet Adapter and an Ethernet cable with RJ45 connectors

TCP/IP protocol must be installed on each PC

Web browser, such as Microsoft Internet Explorer 5.0 or later, Netscape Navigator 6.0 or later 3.2 Installation Environment Requirements

Not in direct sunlight or near a heater or heating vent

Not cluttered or crowded. There should be at least 2 inches (5 cm) of clear space on all sides of the router

Well ventilated (especially if it is in a closet)

Operating temperature: 0~40 (32~104)

Operating Humidity: 10%~90%RH, Non-condensing 3.3 Connecting the Router Before you install the router, you should connect your PC to the Internet through your broadband service successfully. If there is any problem, please contact your ISP. After that, please install the router according to the following steps. Don't forget to pull out the power plug and keep your hands dry. 1. Power off your PC(s), Cable/DSL modem, and the router. 2. Locate an optimum location for the router. The best place is usually near the center of the area in which your PC(s) will wirelessly connect. The place must accord with the Installation Environment Requirements. 3. Adjust the direction of the antenna. Normally, upright is a good direction. 4. Connect the PC(s) and each Switch/Hub on your LAN to the LAN Ports on the router, shown in figure 3-1. 5. Connect the DSL/Cable Modem to the WAN port on the router, shown in figure 3-1. 6. Connect the AC power adapter to the AC power socket on the router, and the other end into an electrical outlet. The router will start to work automatically. 7. Power on your PC(s) and Cable/DSL modem.

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TL-WR541G 54M Wireless Router User Guide WAN 1 2 3 4 RESET To WAN To LAN Switch/Hub XDSL Cable Ethernet Figure 3-1 Hardware Installation of the TL-WR541G 54Mbps Wireless Router

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TL-WR541G 54M Wireless Router User Guide Chapter 4: Quick Installation Guide After connecting the TL-WR541G Router into your network, you should configure it. This chapter describes how to configure the basic functions of your TL-WR541G Wireless Router. These procedures only take you a few minutes. You can access the Internet via the router immediately after successfully configured. 4.1 TCP/IP configuration The default IP address of the TL-WR541G 54Mbps Wireless Router is 192.168.1.1, and the default Subnet Mask is 255.255.255.0. These values can be seen from the LAN. They can be changed as you desire, as an example we use the default values for description in this guide. Connect the local PCs to the LAN ports on the router. There are then two means to configure the IP address for your PCs.

Configure the IP address manually 1) Set up the TCP/IP Protocol for your PC(s). If you need instructions as to how to do this, please refer to Appendix B: "Configuring the PCs."

2) Configure the network parameters. The IP address is 192.168.1.xxx ("xxx" is from 2 to 254), Subnet Mask is 255.255.255.0, and Gateway is 192.168.1.1

(The router's default IP address)

Obtain an IP address automatically 1) Set up the TCP/IP Protocol in "Obtain an IP address automatically" mode on your PC(s). If you need instructions as to how to do this, please refer to Appendix B: "Configuring the PCs."

2) Power off the router and PC(s). Then turn on the router, and restart the PC(s). The built-in DHCP server will assign IP addresses for the PC(s). Now, you can run the Ping command in the command prompt to verify the network connection between your PC(s) and the router. The following example is in Windows 2000 OS. Open a command prompt, and type ping 192.168.1.1, then press Enter. Figure 4-1 Successful result of Ping command If the result displayed is similar to that shown in figure 4-1, the connection between your

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TL-WR541G 54M Wireless Router User Guide PC and the router has been established. Figure 4-2 Failed result of Ping command If the result displayed is similar to that shown in figure 4-2, it means that your PC has not connected to the router. Please check it following these steps:

1. 2. Is the connection between your PC and the router correct?

Note: The Link/Act LEDs of LAN port on the router and LEDs on your PC's adapter should be lit. Is the TCP/IP configuration for your PC correct?

Note: If the router's IP address is 192.168.1.1, your PC's IP address must be within the range of 192.168.1.2 ~ 192.168.1.254, the gateway must be 192.168.1.1 4.2 Quick Installation Guide With a Web-based (Internet Explorer or Netscape Navigator) utility, the TL-WR541G 54Mbps Wireless Router is easy to configure and manage. The Web-based utility can be used on any Windows, Macintosh or UNIX OS with a web browser. Connect to the router by typing http://192.168.1.1 in the address field of web browser. Figure 4-3 Login to the router After a moment, a login window will appear similar to that shown in Figure 4-4. Enter admin for the User Name and Password, both in lower case letters. Then click the OK button or press the Enter key. Figure 4-4 Login Windows

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TL-WR541G 54M Wireless Router User Guide Note: If the above screen does not prompt, it means that your web-browser has been set to a proxy. Go to Tools menu>Internet Options>Connections>LAN Settings, in the screen that appears, cancel the Using Proxy checkbox, and click OK to finish it. If the User Name and Password are correct, you can configure the router using the web browser. Please click the Quick Setup link on the left of the main menu and the Quick Setup screen will appear. Figure 4-5 Quick Setup Click Next, the Choose WAN Connection Type page will appear, shown in figure 4-6. Figure 4-6 Choose WAN Connection Type The router supports three popular ways to connect to Internet. Please select one compatible with your ISP. Click Next to enter the necessary network parameters. If you choose "PPPoE", you will see this page shown in figure 4-7:

Figure 4-7 Quick Setup - PPPoE

User Name and Password - Enter the User Name and Password provided by your ISP. These fields are case sensitive. If you have difficulty with this process, please

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TL-WR541G 54M Wireless Router User Guide contact your ISP. If you choose "Dynamic IP", the router will automatically receive the IP parameters from your ISP without needing to enter any parameters. If you Choose "Static IP", the Static IP settings page will appear, shown in figure 4-8:

Figure 4-8 Quick Setup - Static IP

Note: The IP parameters should have been provided by your ISP. IP Address - This is the WAN IP address as seen by external users on the Internet

(including your ISP). Enter the IP address into the field.

Subnet Mask - The Subnet Mask is used for the WAN IP address, it is usually 255.255.255.0

Default Gateway - Enter the gateway into the box if required.

Primary DNS - Enter the DNS Server IP address into the boxes if required.

Secondary DNS - If your ISP provides another DNS server, enter it into this field. After you complete the above, click Next, the Wireless settings page will appear, shown in figure 4-9. Figure 4-9 Quick Setup - Wireless settings In this page, you can configure the following wireless parameters:

Wireless Radio - indicates whether the Access Point feature of the router is enabled or disabled. If disabled, the WLAN LED on the front panel will not be lit and the wireless stations will not be able to access the router. If enabled, the WLAN LED will be lit up and wireless stations will be able to access the router.

SSID - Enter a value of up to 32 characters. The same SSID must be assigned to

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TL-WR541G 54M Wireless Router User Guide all wireless devices on your network. The default SSID is TP-LINK. This value is case-sensitive. For example, TP-LINK is NOT the same as TP-Link.

Channel - the current channel in use. This field determines which operating frequency will be used.

Mode - Indicates the current mode (54Mbps (802.11g), 11Mbps (802.11b)). If you select 54Mbps (802.11g), it is compatible with 11Mbps (802.11b). These settings are only for basic wireless parameters, for advanced settings, please refer to Section 5.5: "Wireless."

Note: The change of wireless settings won't take effect until the router reboots! You can reboot it manually. If you need instructions as to how to do this, please refer to Section 5.11.3: "Rebooting the Router"

Click the Next button, you will then see the Finish page:

Figure 4-10 Quick Setup - Finish After finishing all configurations of basic network parameters, please click Finish button to exit this Quick Setup.

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TL-WR541G 54M Wireless Router User Guide Chapter 5: Configuring the Router This chapter describes each web page's key functions. 5.1 login After your successful login, you can configure and manage the router. There are ten main menus on the left of the web-based utility. Submenus will be available after you click one of the main menus. The ten main menus are: Status, Quick Setup, Network, Wireless, DHCP, Forwarding, Security, Static Routing, DDNS and System Tools. On the right of the web-based utility, there are the detailed explanations and instructions for the corresponding page. To apply any settings you have altered on the page, please click the Save button. There are the detailed explanations for each web page's key functions below. 5.2 Status The Status page displays the router's current status and configuration. All information is read-only. 1. LAN This field displays the current settings or information for the LAN, including the MAC address, IP address and Subnet Mask. 2. Wireless This field displays basic information or status for wireless function, including Wireless Radio, SSID, Channel, Mode, Wireless MAC address and IP address. 3. WAN These parameters apply to the WAN port of the router, including MAC address, IP address, Subnet Mask, Default Gateway, DNS server and WAN connection type. If PPPoE is chosen as the WAN connection type, the Disconnect button will be shown here while you are accessing the Internet. You can also cut the connection by clicking the button. If you have not connected to the Internet, a Connect button will be shown, you can then establish the connection by clicking the button. 4. Traffic Statistics This field displays the router's traffic statistics. 5. System Up Time The time of the router running from it's powered on or reset.

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TL-WR541G 54M Wireless Router User Guide Figure 5-1 Router Status 5.3 Quick Setup Please refer to Section 4.2: "Quick Installation Guide."

5.4 Network Figure 5-2 the Network menu There are three submenus under the Network menu (shown in figure 5-2): LAN, WAN and MAC Clone. Click any of them, and you will be able to configure the corresponding function. The detailed explanations for each submenu are provided below.

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TL-WR541G 54M Wireless Router User Guide 5.4.1 LAN You can configure the IP parameters of LAN on this page. Figure 5-3 LAN

MAC Address - the physical address of the router, as seen from the LAN. The

value can't be changed. IP Address - Enter the IP address of your router in dotted-decimal notation (factory default: 192.168.1.1).

Subnet Mask - An address code that determines the size of the network. Normally use 255.255.255.0 as the subnet mask. Note:

a. If you change the IP Address of LAN, you must use the new IP Address to login the router. If the new LAN IP Address you set is not in the same subnet, the IP Address pool in the DHCP sever will not take effect, until they are re-configured. If the new LAN IP Address you set is not in the same subnet, the Virtual Server and DMZ Host will change accordingly at the same time. b. c. 5.4.2 WAN You can configure the WAN port parameters on this page. First, please choose the WAN Connection Type (Dynamic/Static IP/PPPoE) to the Internet. The default type is PPPoE. If you arent given any login parameters (fixed IP Address, logging ID, etc), please select Dynamic IP. If you are given a fixed IP (static IP), please select Static IP. If you are given a user name and a password, please select PPPoE. If you are not sure which connection type you use currently, please contact your ISP to obtain the correct information. 1. If you choose Dynamic IP, the router will automatically get IP parameters from your ISP. You can see the page as follows (figure 5-4):

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TL-WR541G 54M Wireless Router User Guide Figure 5-4 WAN - Dynamic IP This page displays the WAN IP parameters assigned dynamically by your ISP, including IP address, Subnet Mask, Default Gateway, etc. Click the Renew button to renew the IP parameters from your ISP. Click the Release button to release the IP parameters. MTU Size: The normal MTU (Maximum Transmission Unit) value for most Ethernet networks is 1500 Bytes. For some ISPs you need to reduce the MTU. But this is rarely required, and should not be done unless you are sure it is necessary for your ISP connection. If your ISP gives you one or two DNS addresses, select Use These DNS Servers and enter the primary and secondary addresses into the correct fields. Otherwise, the DNS servers will be assigned dynamically from ISP. Note: If you get Address not found' errors when you go to a Web site, it is likely that your DNS servers are set up improperly. You should contact your ISP to get DNS server addresses. Get IP with Unicast DHCP: A few ISPs' DHCP servers do not support the broadcast applications. If you cannot get the IP Address normally, you can choose this option. (You generally need not check this option). 2. If you choose Static IP, you should have fixed IP Parameters specified by your ISP. The Static IP settings page will appear, shown in figure 5-5:

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TL-WR541G 54M Wireless Router User Guide Figure 5-5 WAN - Static IP You should type the following parameters into the spaces provided:

IP Address - Enter the IP address in dotted-decimal notation provided by your ISP.

Subnet Mask - Enter the subnet Mask in dotted-decimal notation provided by your ISP, usually is 255.255.255.0.

Default Gateway - (Optional) Enter the gateway IP address in dotted-decimal notation provided by your ISP.

MTU Size - The normal MTU (Maximum Transmission Unit) value for most Ethernet networks is 1500 Bytes. For some ISPs you may need to modify the MTU. But this is rarely required, and should not be done unless you are sure it is necessary for your ISP connection.

Primary DNS - (Optional) Type the DNS address in dotted-decimal notation provided by your ISP.

Secondary DNS - (Optional) Type another DNS address in dotted-decimal notation provided by your ISP if provided. 3. If you choose PPPoE, you should enter the following parameters (figure 5-6):

Figure 5-6 WAN - PPPoE

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TL-WR541G 54M Wireless Router User Guide

User Name/Password - Enter the User Name and Password provided by your ISP. These fields are case-sensitive.

Connect on Demand - You can configure the router to disconnect your Internet connection after a specified period of inactivity (Max Idle Time). If your Internet connection has been terminated due to inactivity, Connect on Demand enables the router to automatically re-establish your connection as soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the radio button. If you want your Internet connection to remain active at all times, enter 0 in the Max Idle Time field. Otherwise, enter the number of minutes you want to have elapsed before your Internet connection terminates. Caution: Sometimes the connection cannot be disconnected although you specify a time to Max Idle Time, since some applications is visiting the Internet continually in the background.

Connect Automatically - Connect automatically after the router is disconnected. To use this option, click the radio button

Connect Manually - You can configure the router to make it connect or disconnect manually. After a specified period of inactivity (Max Idle Time), the router will disconnect your Internet connection, and not be able to re-establish your connection automatically as soon as you attempt to access the Internet again. To use this option, click the radio button. If you want your Internet connection to remain active at all times, enter 0 in the Max Idle Time field. Otherwise, enter the number in minutes that you wish to have the Internet connecting last unless a new link is requested. Caution: Sometimes the connection cannot be disconnected although you specify a time to Max Idle Time, since some applications is visiting the Internet continually in the background. Click the Connect button to connect immediately, Click the Disconnect button to disconnect immediately. Click the Advanced Settings button to set up the advanced option, the page shown in figure 5-7 will then appear:

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TL-WR541G 54M Wireless Router User Guide Figure 5-7 PPPoE Advanced Settings

Packet MTU - The default MTU size is 1492 bytes, which value is usually fine. For some ISPs, you need modify the MTU. This should not be done unless you are sure it is necessary for your ISP.

Service Name/AC Name - The service name and AC (Access Concentrator) name,

this should not be done unless you are sure it is necessary for your ISP. ISP Specified IP Address - If you know that your ISP does not automatically transmit your IP address to the router during login, click Use the IP Address specified by ISP check box and enter the IP Address in dotted-decimal notation, which your ISP provided.

Detect Online Interval - The default value is 0, you can input the value between 0 and 120. The router will detect Access Concentrator online at every interval between seconds. If the value is 0, it means do not detect.

DNS IP address - If you know that your ISP does not automatically transmit DNS addresses to the router during login, click Use the following DNS servers checkbox and enter the IP address in dotted-decimal notation of your ISPs primary DNS server. If a secondary DNS server address is available, enter it as well. Click the Save button to save your settings. 5.4.3 MAC Clone You can configure the MAC address of the WAN port on this page, figure 5-8:

Figure 5-8 MAC Address Clone

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TL-WR541G 54M Wireless Router User Guide Some ISPs require that you register the MAC Address of your adapter, which is connected to your cable, DSL modem or Ethernet during installation. You do not generally need to change anything here.

WAN MAC Address: This field displays the current MAC address of the WAN port, which is used for the WAN port. If your ISP requires that you register the MAC address, please enter the correct MAC address into this field. The format for the MAC Address is XX-XX-XX-XX-XX-XX (X is any hexadecimal digit).

Your PC's MAC Address: This field displays the MAC address of the PC that is managing the router. If the MAC address is required, you can click the Clone MAC Address button and this MAC address will fill in the WAN MAC Address field. Click Restore Factory MAC to restore the MAC address of WAN port to the factory default value. Click the Save button to save your settings. Note:

1) Only the PC(s) on your LAN can use the MAC Address Clone feature. 2) If you click the Save button, the router will prompt you to reboot. 5.5 Wireless Figure 5-9: Wireless menu There are three submenus under the Wireless menu (shown in figure 5-9): Wireless Settings, MAC Filtering and Wireless Statistics. Click any of them, and you will be able to configure the corresponding function. The detailed explanations for each submenu are provided below. 5.5.1 Wireless Settings The basic settings for the wireless network are set on this page, figure 5-10:

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TL-WR541G 54M Wireless Router User Guide Figure 5-10 Wireless Settings

SSID - Enter a value of up to 32 characters. The same name (SSID) must be assigned to all wireless devices in your network. The default SSID is TP-LINK, but it is recommended strongly that you change your networks name (SSID) to a different value. This value is case-sensitive. For example, TP-LINK is NOT the same as TP-Link.

Channel - This field determines which operating frequency will be used. It is not necessary to change the wireless channel unless you notice interference problems with another nearby access point.

Mode - Select the desired wireless mode. The options are:

54Mbps (802.11g) - Both 802.11g and 802.11b wireless stations can connect to the router. 11Mbps (802.11b) - Only 802.11b wireless stations can connect to the router. Note: The default is "54Mbps (802.11g)", which allows both 802.11g and 802.11b wireless stations to connect to the router.

Enable Wireless Router Radio - The wireless radio of this Router can be enabled or disabled to allow wireless stations access. If enabled, wireless stations will be able to access the router, otherwise, wireless stations will not be able to access the router.

Enable SSID Broadcast - If you select the Enable SSID Broadcast checkbox, the Wireless Router SSID will broadcast its name (SSID) on the air.

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TL-WR541G 54M Wireless Router User Guide

Enable Wireless Security The wireless security function can be enabled or disabled. If disabled, the wireless stations will be able to connect the router without encryption. It is recommended strongly that you choose this optional to encrypt your wireless network. The encryption settings described below.

Authentication Type - You can select one of the following authentication types:

Automatic - Select Shared Key or Open System authentication type automatically based on the wireless station request. Shared Key - Select 802.11 Shared Key authentication. Open System - Select 802.11 Open System authentication. WPA-PSK - Select WPA authentication type based on pre-shared passphrase. WPA - Select WPA authentication type based on Radius Server.

WEP Key Format - You can select ASCII or Hexadecimal format. ASCII Code Format stands for any combination of keyboard characters in the specified length. Hexadecimal format stands for any combination of hexadecimal digits (0-9, a-f, A-F) in the specified length.

WEP Key settings - Select which of the four keys will be used and enter the matching WEP key information for your network in the selected key radio button. These values must be identical on all wireless stations in your network.

Key Type - You can select the WEP key length (64-bit, or 128-bit, or 152-bit) for encryption. "Disabled" means the WEP key entry is invalid. For 64-bit encryption - You can enter 10 hexadecimal digits (any combination of 0-9, a-f, A-F, zero key is not permitted) or 5 ASCII characters. For 128-bit encryption - You can enter 26 hexadecimal digits (any combination of 0-9, a-f, A-F, zero key is not permitted) or 13 ASCII characters. For 152-bit encryption - You can enter 32 hexadecimal digits (any combination of 0-9, a-f, A-F, zero key is not permitted) or 16 ASCII characters.

Encryption - When you select WPA-PSK or WPA for Authentication Type you can select either Automatic, or TKIP or AES as Encryption. Figure 5-10a WPA-PSK

WPA-PSK Passphrase - You can enter a WPA passphrase between 8 and 63 characters long.

Group Key Update Period - Specify the group key update interval in seconds. The value can be either 0 second or from 30 seconds or up, 1-29 seconds is not a usable second. Enter 0 to disable the update.

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TL-WR541G 54M Wireless Router User Guide Figure 5-10b WPA

Radius Server IP - Enter the IP address of the Radius Server

Radius Port - Enter the port that radius service used.

Radius Password - Enter the password for the Radius Server. Be sure to click the Save button to save your settings on this page. Note: The router will reboot automatically after you click save. 5.5.2 MAC Filtering The Wireless MAC Filtering for wireless networks are set on this page, figure 5-11:

Figure 5-11 Wireless MAC address Filtering The Wireless MAC Address Filtering feature allows you to control wireless stations accessing the router, which depend on the station's MAC addresses.

MAC Address - The wireless station's MAC address that you want to access.

Description - A simple description of the wireless station.

Privilege - Allow means allowing the station to access the router. Deny means denying the station to access the router. 64-bit, or 128-bit, or 152-bit means assigning a unique WEP key to access the router.

WEP Key - Specify a unique WEP key (in Hexadecimal format) to access the router.

Status - The status of this entry, either Enabled or Disabled. To disable the Wireless MAC Address Filters feature, keep the default setting, Disable. To set up an entry, click Enable, and follow these instructions:

First, you must decide whether the unspecified wireless stations can or cannot access the router. If you desire that the unspecified wireless stations can access the router, please select the radio button Allow the stations not specified by any enabled

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TL-WR541G 54M Wireless Router User Guide entries in the list to access, otherwise, select the radio button Deny the stations not specified by any enabled entries in the list to access. To Add a Wireless MAC Address filtering entry, click the Add New button. The " Add or Modify Wireless MAC Address Filtering entry" page will appear, shown in figure 5-12:

Figure 5-12 Add or Modify Wireless MAC Address Filtering entry To add or modify a MAC Address Filtering entry, follow these instructions:

1. Enter the appropriate MAC Address into the MAC Address field. The format of the MAC Address is XX-XX-XX-XX-XX-XX (X is any hexadecimal digit). For example:

00-0A-EB-B0-00-0B. 2. Enter a simple description of the wireless station in the Description field. For example: Wireless station A. 3. Privilege - Selects the privileges for this entry, one of Allow / Deny / 64-bit / 128-bit

/ 152-bit. 4. WEP Key - If you select 64-bit, 128-bit or 152-bit in the Privilege field, enter any combination of hexadecimal digits (0-9, a-f, A-F) in the specified length. For example: 2F34D20BE2. 5. Status - Select Enabled or Disabled for this entry on the Status pull-down list. 6. Click the Save button to save this entry. To add additional entries, repeat steps 1-6. Note: When 64-bit, or 128-bit, or 152-bit is selected, WEP Key will be enabled. To modify or delete an existing entry:

1. Click the Edit or Delete button in the Modify column in the MAC Address Filtering Table. 2. Enter the value as desired in the Add or Modify Wireless MAC Address Filtering entry page, and click the Save button. You can click the Enable All button to make all the entries effective, click the Disable All button to make all the entries ineffective, click the Delete All button to delete all the entries. Click the Next button to go to the next page and click the Previous button to return to the previous page.

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TL-WR541G 54M Wireless Router User Guide that If you desire For example:

the wireless station A with MAC address 00-0A-EB-00-07-BE be able to access the router, the wireless station B with MAC address 00-0A-EB-00-07-5F not be able to access the router, and the wireless station C with MAC address 00-0A-EB-00-07-8A be able to access the router when its WEP key is 2F34D20BE2E54B326C5476586A, while all other wireless stations cannot access the router, you should configure the Wireless MAC Address Filtering list following these steps:

1. Click the Enable button to enable this function. 2. Select the radio button: Deny the stations not specified by any enabled entries in the list to access for Filtering Rules. 3. Delete all or disable all entries if there exist any entries already. 4. Click the Add New... button and enter the MAC address 00-0A-EB-00-07-BE in the MAC Address field, enter wireless station A in the Description field, select Allow in the Privilege pull-down list and select Enabled in the Status pull-down list. Click the Save and the Return button. 5. Click the Add New... button and enter the MAC address 00-0A-EB-00-07-5F in the MAC Address field, enter wireless station B in the Description field, select Deny in the Privilege pull-down list and select Enabled in the Status pull-down list. Click the Save and the Return button. 6. Click the Add New... button and enter the MAC address 00-0A-EB-00-07-8A in the MAC Address field, enter wireless station C in the Description field, select 128-bit in the Privilege pull-down list, enter 2F34D20BE2E54B326C5476586A in the WEP Key field and select Enabled in the Status pull-down list. Click the Save and the Return button. The filtering rules that configured should be similar to the following list:

Note:

a. b. If you select the radio button Allow the stations not specified by any enabled entries in the list to access for Filtering Rules, the wireless station B will still not be able to access the router, however, other wireless stations that are not in the list will be able to access the router. If you enable the function and select the Deny the stations not specified by any enabled entries in the list to access for Filtering Rules, and there are not any enable entries in the list, thus, no wireless stations can access the router. 5.5.3 Wireless Statistics This page shows MAC Address, Current Status, Received Packets and Sent Packets for each connected wireless station.

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TL-WR541G 54M Wireless Router User Guide Figure 5-13 The router attached wireless stations

MAC Address - The connected wireless station's MAC address

Current Status - The connected wireless station's running status, one of STA-AUTH / STA-ASSOC / AP-UP / WPA / WPA-PSK / None

Received Packets - packets received by the station

Sent Packets - packets sent by the station You cannot change any of the values on this page. To update this page and to show the current connected wireless stations, click on the Refresh button. If the numbers of connected wireless stations go beyond one page, click the Next button to go to the next page and click the Previous button to return the previous page. Note: This page will be refreshed automatically every 5 seconds. 5.6 DHCP Figure 5-14 the DHCP menu There are three submenus under the DHCP menu (shown in figure 5-14): DHCP Settings, DHCP Clients List and Address Reservation. Click any of them, and you will be able to configure the corresponding function. The detailed explanations for each submenu are provided below. 5.6.1 DHCP Settings The router is set up by default as a DHCP (Dynamic Host Configuration Protocol) server, which provides the TCP/IP configuration for all the PCs that are connected to the router on the LAN. The DHCP Server can be configured on the page (shown in figure 5-15):

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TL-WR541G 54M Wireless Router User Guide Figure 5-15 DHCP Settings

DHCP Server - Enable or Disable the DHCP server. If you disable the Server, you must have another DHCP server within your network or else you must manually configure the computer.

Start IP Address - This field specifies the first of the addresses in the IP address pool. 192.168.1.100 is the default start address.

End IP Address - This field specifies the last of the addresses in the IP address pool. 192.168.1.199 is the default end address.

Address Lease Time - The Address Lease Time is the amount of time a network user will be allowed connection to the router with their current dynamic IP Address. Enter the amount of time, in minutes, which the user will be "leased" this dynamic IP Address. The range of the time is 1 ~ 2880 minutes. The default value is 120 minutes.

Default Gateway - (Optional.) Suggest to input the IP address of the LAN port of the router, default value is 192.168.1.1

Default Domain - (Optional.) Input the domain name of your network.

Primary DNS - (Optional.) Input the DNS IP address provided by your ISP. Or consult your ISP.

Secondary DNS - (Optional.) Input the IP address of another DNS server if your ISP provides two DNS servers. Note: To use the DHCP server function of the router, you must configure all computers on the LAN as "Obtain an IP Address automatically" mode. This function will take effect until the router reboots. 5.6.2 DHCP Clients List This page shows Client Name, MAC Address, Assigned IP and Lease Time for each DHCP Client attached to the router (figure 5-16):

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TL-WR541G 54M Wireless Router User Guide Figure 5-16 DHCP Clients List Index - The index of the DHCP Client

Client Name - The name of the DHCP client

MAC Address - The MAC address of the DHCP client

Assigned IP - The IP address that the router has allocated to the DHCP client.

Lease Time - The time of the DHCP client leased. Before the time is up, DHCP client will request to renew the lease automatically. You cannot change any of the values on this page. To update this page and to show the current attached devices, click on the Refresh button. 5.6.3 Address Reservation When you specify a reserved IP address for a PC on the LAN, that PC will always receive the same IP address each time when it accesses the DHCP server. Reserved IP addresses should be assigned to servers that require permanent IP settings. This page is used for address reservation (shown in figure 5-17). Figure 5-17 Address Reservation

MAC Address - The MAC address of the PC of which you want to reserve IP address.

Assigned IP Address - The IP address of the router reserved. To Reserve IP addresses:

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TL-WR541G 54M Wireless Router User Guide 1. Enter the MAC address (The format for the MAC Address is XX-XX-XX-XX-XX-XX.) and IP address in dotted-decimal notation of the computer you wish to add. 2. Click the Save button when finished. To modify A Reserved IP address:

1. Select the reserved address entry as you desire, and modify it. If you wish to delete the entry, make all of the entry fields blank. 2. Click the Save button. To delete all Reserved IP addresses:

1. Click the Clear All button. 2. Click the Save button Click the Next button to go to the next page and Click the Previous button to return the previous page. Note: The function won't take effect until the router reboots. 5.7 Forwarding Figure 5-18 the Forwarding menu There are four submenus under the Forwarding menu (shown in figure 5-18): Virtual Servers, Port Triggering, DMZ and UPnP. Click any of them, and you will be able to configure the corresponding function. The detailed explanations for each submenu are provided below. 5.7.1 Virtual Servers Virtual servers can be used for setting up public services on your LAN, such as DNS, Email and FTP. A virtual server is defined as a service port, and all requests from Internet to this service port will be redirected to the computer specified by the server IP. Any PC that was used for a virtual server must have a static or reserved IP Address because its IP Address may change when using the DHCP function. You can set up virtual servers on this page, shown in figure 5-19:

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TL-WR541G 54M Wireless Router User Guide Figure 5-19 Virtual Servers

Service Port - The numbers of External Ports. You can type a service port or a range of service ports (the format is XXX YYY, XXX is Start port, YYY is End port). IP Address - The IP Address of the PC running the service application

Protocol - The protocol used for this application, either TCP, UDP, or All (all protocols supported by the router).

Enable - The Enable checkbox to enable the virtual server entry.

Common Service Port - Some common services already list in the pull-down list. To setup a virtual server entry:

1. Select the service you want to use from the Common Service Port list, and select the ID you want to use, and click Copy to button. If the Common Service Port list does not have the service that you want to use, type the number of the service port or service port range in the Service Port box. 2. Type the IP Address of the computer in the Server IP Address box. 3. Select the protocol used for this application, either TCP or UDP, or All. 4. Select the Enable checkbox to enable the virtual server. 5. Click the Save button. Note: It is possible that you have a computer or server that has more than one type of available service. If so, select another service, and enter the same IP Address for that computer or server. To modify a virtual server entry:

1. Select the entry you want to modify. 2. Modify the information from the Service Port, the IP Address boxes, and the Protocol pull-down list.

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TL-WR541G 54M Wireless Router User Guide 3. Click the Save button. To delete a service entry:

1. Clear the entry's all information except the Protocol pull-down list. 2. Click the Save button. To delete all service entries:

3. Click the Clear All button. 4. Click the Save button Click the Next button to go to the next page and Click the Previous button to return the previous page. Note: If you set the virtual server of service port as 80, you must set the web management port on Security > Remote Management page to be any value except 80 such as 8080. Or else there will be a conflict to disable the virtual server. 5.7.2 Port Triggering Some applications require calling multiple connections, like Internet games, video conferencing, Internet calling and so on. These applications cannot work with a pure NAT router. Port Triggering is used for some of these applications that can work with an NAT router. You can set up Port Triggering on this page shown in figure 5-20:

Figure 5-20 Port Triggering Once configured, operation is as follows:

1. A local host makes an outgoing connection using a destination port number defined in the Trigger Port field. 2. The router records this connection, opens the incoming port or ports associated with this entry in the Port Triggering table, and associates them with the local host. 3. When necessary the external host will be able to connect to the local host using one of the ports defined in the Incoming Ports field.

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TL-WR541G 54M Wireless Router User Guide

Trigger Port - The port for outgoing traffic. An outgoing connection using this port will "Trigger" this rule.

Trigger Protocol - The protocol used for Trigger Ports, either TCP, UDP, or All (all

protocols supported by the router). Incoming Ports Range - The port or port range used by the remote system when it responds to the outgoing request. A response using one of these ports will be forwarded to the PC that triggered this rule. You can input at most 5 groups of ports

(or port section). Every group of ports must be apart with ",". For example, 2000-2038, 2050-2051, 2085, 3010-3030. Incoming Protocol - The protocol used for Incoming Ports Range, either TCP,UDP, or ALL (all protocols supported by the router).

Enable - The Enable checkbox enables port forwarding for the application.

Common Applications - Some popular applications already list in the pull-down list. To add a new rule, enter the following data on the Port Triggering screen. 1. Enter a port number used by the application when it generates an outgoing request. 2. Select the protocol used for Trigger Port from the pull-down list, either TCP, UDP, or All. 3. Enter the range of port numbers used by the remote system when it responds to the PC's request. 4. Select the protocol used for Incoming Ports Range from the pull-down list, either TCP, UDP, or All. 5. Select the Enable checkbox to enable. 6. Click the Save button to save the new rule. There are many popular applications in the Popular Application list. You can select it and the ID, then click the Copy to button, the application will fill in the Trigger Port, incoming Ports Range boxes and select the Enable checkbox. It has the same effect as adding a new rule. Modifying an existing rule:

1. Edit the entry as desired. 2. Click the Save button. Deleting an existing rule:

1. Clear all the content in the Trigger Port field, the Open Port field and the Enable checkbox. 2. Click the Save button. To delete all rules:

1. Click the Clear All button. 2. Click the Save button

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TL-WR541G 54M Wireless Router User Guide Note:

1. When the trigger connection is released, the according opening ports will be closed. 2. Each rule allowed to be used only by one host on LAN synchronously. The trigger connection of other hosts on LAN will be refused. Incoming Port Range cannot overlap each other. 3. 5.7.3 DMZ The DMZ host feature allows one local host to be exposed to the Internet for a special-purpose service such as Internet gaming or videoconferencing. DMZ host forwards all the ports at the same time. Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static IP Address assigned to it because its IP Address may change when using the DHCP function. You can set up DMZ host on this page shown in figure 5-21:

Figure 5-21 DMZ To assign a computer or server to be a DMZ server:

1. Click the Enable radio button 2. Enter the local host IP Address in the DMZ Host IP Address field 3. Click the Save button. Note: After you set the DMZ host, the firewall related to the host will not work. 5.7.4 UPnP The Universal Plug and Play (UPnP) feature allows the devices, such as Internet computers, to access the local host resources or devices as needed. UPnP devices can be automatically discovered by the UPnP service application on the LAN. You can configure UPnP on this page that shown in figure 5-22:

Figure 5-22 UPnP Settings Enable UPnP: UPnP can be enabled or disabled by clicking the Enable or Disable button. As allowing this may present a risk to security, this feature is disabled by default.

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TL-WR541G 54M Wireless Router User Guide

Current UPnP Settings Table - this table displays the current UPnP information. App Description The description provided by the application in the UPnP request External Port - External port, which the router opened for the application. Protocol - Which type of protocol is opened. Internal Port - Internal port, which the router opened for local host. IP Address - The UPnP device that is currently accessing the router. Status - Either Enabled or Disabled, Enabled means that port is still active, otherwise, the port is inactive. Click Refresh to update the Current UPnP Settings List. 5.8 Security Figure 5-23 the Security menu There are six submenus under the Security menu (shown in figure 5-23): Firewall, IP Address Filtering, Domain Filtering, MAC Filtering, Remote Management and Advanced Security. Click any of them, and you will be able to configure the corresponding function. The detailed explanations for each submenu are provided below. 5.8.1 Firewall Using the Firewall page (shown in figure 5-24), you can turn the general firewall switch on or off. The default setting for the switch is off. If the general firewall switch is off, even if IP Address Filtering, DNS Filtering and MAC Filtering are enabled, their settings are ineffective.

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TL-WR541G 54M Wireless Router User Guide Figure 5-24 Firewall Settings

Enable Firewall - the general firewall switch is on or off.

Enable IP Address Filtering - set IP Address Filtering is enabled or disabled. There are two default filtering rules of IP Address Filtering, either Allow or Deny passing through the router.

Enable Domain Filtering - set Domain Filtering is enabled or disabled.

Enable MAC Filtering - set MAC Address Filtering is enabled or disabled. You can select the default filtering rules of MAC Address Filtering, either Allow or Deny accessing the router. 5.8.2 IP Address Filtering The IP address Filtering feature allows you to control Internet Access by specific users on your LAN based on their IP addresses. The IP address filtering are set on this page, figure 5-25:

Figure 5-25 IP address Filtering

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TL-WR541G 54M Wireless Router User Guide To disable the IP Address Filtering feature, keep the default setting, Disabled. To set up an IP Address Filtering entry, click Enable Firewall and Enable IP Address Filtering on the Firewall page, and click the Add New button. The page " Add or Modify an IP Address Filtering entry " will appear shown in figure 5-26:

Figure 5-26 Add or Modify an IP Address Filtering Entry To create or modify an IP Address Filtering entry, please follow these instructions:

1. LAN IP Address - type a LAN IP Address or a range of LAN IP addresses in the field, in dotted-decimal notation format. For example, 192.168.1.20 - 192.168.1.30. Keep the field open, which means all LAN IP Addresses have been put into the field. 2. LAN Port - type a LAN Port or a range of LAN ports in the field. For example, 1030 -

2000. Keep the field open, which means all LAN ports have been put into the field. 3. WAN IP Address - type a WAN IP Address or a range of WAN IP Addresses in the field, in dotted-decimal notation format. For example, 61.145.238.6 61.145.238.47. Keep the field open, which means all WAN IP Addresses have been put into the field. 4. WAN Port - type a WAN Port or a range of WAN Ports in the field. For example, 25 110. Keep the field open, which means all WAN Ports have been put into the field. 5. Protocol - select which protocol is to be used, either TCP, UDP, or All (all protocols supported by the router). 6. Pass - select either Allow or Deny through the router. 7. Status - select Enabled or Disabled for this entry on the Status pull-down list. 8. Click the Save button to save this entry. To add additional entries, repeat steps 1-8. When finished, click the Return button to return to IP Address Filtering page. To modify or delete an existing entry:

1. Find the desired entry in the table. 2. Click Modify or Delete as desired on the Modify column. Click the Enable All button to make all entries enabled Click the Disabled All button to make all entries disabled. Click the Delete All button to delete all entries You can change the entrys order as desired. Fore entries are before hind entries. Enter

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TL-WR541G 54M Wireless Router User Guide the ID number in the first box you want to move and another ID number in second box you want to move to, and then click the Move button to change the entrys order. Click the Next button to the next page and click the Previous button to return to the previous page. For example: If you desire to block E-mail received and sent by the IP Address 192.168.1.7 on your local network, and to make the PC with IP Address 192.168.1.8 unable to visit the website of IP Address 202.96.134.12, while other PCs have no limit. You should specify the following IP address filtering list:

5.8.3 Domain Filtering The Domain Filtering page (shown in figure 5-27) allows you to control access to certain websites on the Internet by specifying their domains or key words. Figure 5-27 Domain Filtering Before adding a Domain Filtering entry, you must ensure that Enable Firewall and Enable Domain Filtering have been selected on the Firewall page. To Add a Domain filtering entry, click the Add New button. The page " Add or Modify a Domain Filtering entry " will appear, shown in figure 5-28:

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TL-WR541G 54M Wireless Router User Guide Figure 5-28 Add or Modify a Domain Filtering entry To add or modify a Domain Filtering entry, follow these instructions:

1. Domain Name - Type the domain or key word as desired in the field. A blank in the Internet. For example:

field means all websites on the domain www.xxyy.com.cn, .net. 2. Status - Select Enabled or Disabled for this entry on the Status pull-down list. 3. Click the Save button to save this entry. To add additional entries, repeat steps 1-3. When finished, click the Return button to return to the Domain filtering page. To Modify or delete an existing entry:

1. Find the desired entry in the table. 2. Click Modify or Delete as desired on the Edit column. Click the Enabled All button to make all entries enabled. Click the Disabled All button to make all entries disabled. Click the Delete All button to delete all entries Click the Next button to go to the next page and the Previous button to return to the previous page. For example: if you want to block the PCs on your LAN to access websites www.xxyy.com.cn, www.aabbcc.com and websites with .net in the end on the Internet while no limit for other websites, you should specify the following Domain filtering list:

5.8.4 MAC Filtering Like the IP Address Filtering page, the MAC Address Filtering page (shown in figure 5-29) allows you to control access to the Internet by users on your local network based on their MAC Address.

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TL-WR541G 54M Wireless Router User Guide Figure 5-29 MAC address Filtering Before setting up MAC Filtering entries, you must ensure that Enable Firewall and Enable MAC Filtering have been selected on the Firewall page. To Add a MAC Address filtering entry, clicking the Add New button. The page " Add or Modify a MAC Address Filtering entry" will appear, shown in figure 5-30:

Figure 5-30 Add or Modify a MAC Address Filtering entry To add or modify a MAC Address Filtering entry, follow these instructions:

1. Enter the appropriate MAC Address into the MAC Address field. The format of the MAC Address is XX-XX-XX-XX-XX-XX (X is any hexadecimal digit). For example:

00-0E-AE-B0-00-0B. 2. Type the description of the PC in the Description field. Fox example: Johns PC. 3. Status - Select Enabled or Disabled for this entry on the Status pull-down list. 4. Click the Save button to save this entry. To add additional entries, repeat steps 1-4. When finished, click the Return button to return to the MAC Address Filtering page. To Modify or delete an existing entry:

1. Find the desired entry in the table. 2. Click Modify or Delete as desired on the Edit column. Click the Enable All button to make all entries enabled. Click the Disabled All button to make all entries disabled. Click the Delete All button to delete all entries

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TL-WR541G 54M Wireless Router User Guide Click the Next button to go to the next page and click the Previous button to return to the previous page. Fox example: If you want to block the PCs with MAC addresses 00-0A-EB-00-07-BE and 00-0A-EB-00-07-5F to access the Internet, first, enable the Firewall and MAC Address Filtering on the Firewall page, then, you should specify the Default MAC Address Filtering Rule "Deny these PCs with effective rules to access the Internet"

on the Firewall page and the following MAC address filtering list on this page:

5.8.5 Remote Management You can configure the Remote Management function on this page shown in figure 5-31. This feature allows you to manage your Router from a remote location, via the Internet. Figure 5-31 Remote Management

Web Management Port - Web browser access normally uses the standard HTTP service port 80. This routers default remote management web port number is 80. For greater security, you can change the remote management web interface to a custom port by entering that number in this box provided. Choose a number between 1024 and 65534, but do not use the number of any common service port.

Remote Management IP Address - This is the current address you will use when accessing your router from the Internet. The default IP Address is 0.0.0.0. It means this function is disabled. To enable this function, change the default IP Address to another IP Address as desired. To access the router, you will type your router's WAN IP Address into your browser's Address (in IE) or Location (in Navigator) box, followed by a colon and the custom port number. For example, if your Router's WAN address is 202.96.12.8 and you use port number 8080, enter in your browser: http://202.96.12.8:8080. You will be asked for the router's password. After successfully entering the password, you will be able to access the router's web-based utility. Note: Be sure to change the router's default password to a very secure password.

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TL-WR541G 54M Wireless Router User Guide 5.8.6 Advanced Security Using Advanced Security page (shown in figure 5-32), you can protect the router from being attacked by TCP-SYN Flood, UDP Flood and ICMP-Flood from LAN. Figure 5-32 Advanced Security settings

Packets Statistic interval (5 ~ 60) - The default value is 10. Select a value between 5 and 60 seconds in the pull-down list. The Packets Statistic interval value indicates the time section of the packets statistic. The result of the statistic used for analysis by SYN Flood, UDP Flood and ICMP-Flood.

DoS protection - Enable or Disable the DoS protection function. Only when it is enabled, will the flood filters be effective.

Enable ICMP-FLOOD Attack Filtering - Enable or Disable the ICMP-FLOOD

Attack Filtering. ICMP-FLOOD Packets threshold: (5 ~ 3600) - The default value is 50. Enter a value between 5 ~ 3600 packets. When the current ICMP-FLOOD Packets numbers is beyond the set value, the router will start up the blocking function immediately.

Enable UDP-FLOOD Filtering - Enable or Disable the UDP-FLOOD Filtering.

UDP-FLOOD Packets threshold: (5 ~ 3600) - The default value is 50. Enter a value between 5 ~ 3600 packets. When the current UPD-FLOOD Packets numbers is beyond the set value, the router will start up the blocking function immediately.

Enable TCP-SYN-FLOOD Attack Filtering

- Enable or Disable the TCP-SYN-FLOOD Attack Filtering.

TCP-SYN-FLOOD Packets threshold: (5 ~ 3600) - The default value is 50. Enter a value between 5 ~ 3600 packets. When the current TCP-SYN-FLOOD Packets

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TL-WR541G 54M Wireless Router User Guide

numbers is beyond the set value, the router will start up the blocking function immediately. Ignore Ping Packet from WAN Port - Enable or Disable ignore ping packet from WAN port. The default is disabled. If enabled, the ping packet from the Internet cannot access the router.

Forbid Ping Packet from LAN Port - Enable or Disable forbidding Ping Packet to access the router from the LAN port. The default value is disabled. If enabled, the ping packet from the LAN port cannot access the router. (Defends against some viruses) Click the Save button to save the settings. Click the Blocked DoS Host Table button to display the DoS host table by blocking. The page will appear that shown in figure 5-33:

Figure 5-33 Thwarted DoS Host Table This page shows Host IP Address and Host MAC Address for each host blocked by the router.

Host IP Address- The IP address that blocked by DoS are displayed here.

Host MAC Address - The MAC address that blocked by DoS are displayed here. To update this page and to show the current blocked host, click on the Refresh button. Click the Clear All button to clear all displayed entries. After the table is empty the blocked host will regain the capability to access Internet. Click the Return button to return to the Advanced Security page 5.9 Static Routing A static route is a pre-determined path that network information must travel to reach a specific host or network. To add or delete a route, work in the area under the Static Routing page (shown in figure 5-34).

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TL-WR541G 54M Wireless Router User Guide Figure 5-34 Static Routing To add static routing entries:

1. Enter the following data:

Destination IP Address - The Destination IP Address is the address of the network or host that you want to assign to a static route.

Subnet Mask - The Subnet Mask determines which portion of an IP Address is the network portion, and which portion is the host portion.

Gateway - This is the IP Address of the gateway device that allows for contact between the router and the network or host. 2. Click the Enable checkbox. 3. Repeat steps 1-2 until you are finished. 4. If you are finished. Click the Save button to save it. To modify an existing entry:

1. Modify the entrys Destination IP Address, Subnet Mask and Gateway. 2. Click the Save button. To delete an existing entry:

1. Select the entry as you desire and make all of its fields blank. 2. Click the Save button. To delete all the entries:

1. Click the Clear All button. 2. Click the Save button. Note: You can set up to 8 entries. 5.10 DDNS The router offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed host and domain name to a dynamic Internet IP Address. It is useful when you are hosting your own website, FTP server, or other server behind the router. Before using this feature, you need to sign up for DDNS service providers such as www.oray.net or www.comexe.cn. The Dynamic DNS client service provider will give you a password or key.

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TL-WR541G 54M Wireless Router User Guide To set up for DDNS, follow these instructions:

5.10.1 Oray.net DDNS If your selected dynamic DNS Service Provider is www.oray.net. The page will appear that shown in figure 5-35:

Figure 5-35 Oray.net DDNS Settings To set up for DDNS, follow these instructions:

1. Type the User Name for your DDNS account. 2. Type the Password for your DDNS account. 3. Click the Login button to login the DDNS service.

Connection Status - the status of the DDNS service connection is displayed here.

Domain Name - the domain names are displayed here. Click Logout to logout the DDNS service. 5.10.2 Comexe.cn DDNS If your selected dynamic DNS Service Provider is www.comexe.cn. The page will appear that shown in figure 5-36:

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TL-WR541G 54M Wireless Router User Guide Figure 5-36 Comexe.cn DDNS Settings To set up for DDNS, follow these instructions:

1. Type the domain names your dynamic DNS service provider gave. 2. Type the User Name for your DDNS account. 3. Type the Password for your DDNS account. 4. Click the Login button to login to the DDNS service.

Connection Status: The status of the DDNS service connection is displayed here. Click Logout to logout of the DDNS service. 5.11 System Tools Figure 5-37 the System Tools menu There are six submenus under the System Tools menu (shown in figure 5-37): Firmware, Factory Defaults, Reboot, Password, Log and Statistics. Click any of them, and you will be able to configure the corresponding function. The detailed explanations for each submenu are provided below.

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TL-WR541G 54M Wireless Router User Guide 5.11.1 Firmware The page (shown in figure 5-38) allows you to upgrade the latest version firmware for the router. Figure 5-38 Firmware Upgrade New firmware versions are posted at www.tp-link.com and can be downloaded for free. If the router is not experiencing difficulties, there is no need to download a more recent firmware version, unless that version has a new feature that you want to use. Note: When you upgrade the router's firmware, you may lose its configuration settings, so make sure you write down the router settings before you upgrade its firmware. To upgrade the router's firmware, follow these instructions:

1. Download a more recent firmware upgrade file from the TP-LINK website

(www.tp-link.com). 2. Run a TFTP Server on a PC on your LAN, and take the file in the TFTP servers path. 3. Type the downloaded file name into the File Name box. 4. Type the IP Address of the PC that runs the TFTP server in the TFTP Servers IP Address field. 5. Click the Upgrade button.

Firmware Version - displays the current firmware version.

Hardware Version - displays the current hardware version. The hardware version of the upgrade file must accord with the current hardware version. Note:

1. Do not turn off the router or press the Reset button while the firmware is being upgraded. 2. The router will reboot after the Upgrading has been finished. 5.11.2 Factory Defaults This page (shown in figure 5-39) allows you to restore the factory default settings for the router.

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TL-WR541G 54M Wireless Router User Guide Figure 5-39 Restore Factory Default Click the Restore button to reset all configuration settings to their default values. The default User Name: admin The default Password: admin The default IP Address: 192.168.1.1 The default Subnet Mask: 255.255.255.0 Note: Any settings you have saved will be lost when the default settings are restored. 5.11.3 Reboot This page (shown in figure 5-40) allows you to reboot the router. Figure 5-40 Reboot the router Click the Reboot button to reboot the router. Some settings of the router will take effect only after rebooting, which include:

Change LAN IP Address. (System will reboot automatically) MAC Clone (system will reboot automatically) DHCP service function. Static address assignment of DHCP server. Web Service Port of the router. Upgrade the firmware of the router (system will reboot automatically). Restore

(system will router's settings factory default to the automatically). reboot 5.11.4 Password This page (shown in figure 5-41) allows you to change the factory default user name and password of the router.

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TL-WR541G 54M Wireless Router User Guide Figure 5-41 Password It is strongly recommended that you change the factory default user name and password of the router. All users who try to access the router's web-based utility or Quick Setup will be prompted for the router's user name and password. Note: The new user name and password must not exceed 14 characters in length and must not include any spaces. Enter the new Password twice to confirm it. Click the Save button when finished. Click the Clear All button to clear all. 5.11.5 Log This page (shown in figure 5-42) allows you to query the Logs of the router. Figure 5-42 System Log The router can keep logs of all traffic. You can query the logs to find what happened to the router. Click the Refresh button to refresh the logs. Click the Clear Log button to clear all the logs. 5.11.6 Statistics The Statistics page (shown in figure 5-43) displays the network traffic of each PC on LAN, including total traffic and traffic of the last Packets Statistic interval seconds.

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TL-WR541G 54M Wireless Router User Guide Figure 5-43 Statistics

Current Statistics Status - Enable or Disable. The default value is disabled. To enable, click the Enable button. If disabled, the function of DoS protection in Security settings will be ineffective.

Packets Statistics Interval - The default value is 10. Select a value between 5 and 60 seconds in the pull-down list. The Packets Statistic interval value indicates the time section of the packets statistic.

Sorted Rules - here displays sort as desired. Statistics Table:

IP Address The IP Address displayed with statistics Total Packets The total amount of packets received and transmitted by the router. Bytes Packets Bytes Current ICMP Tx UDP Tx TCP SYN Tx The total amount of bytes received and transmitted by the router. The total amount of packets received and transmitted in the last Packets Statistic interval seconds. The total amount of bytes received and transmitted in the last Packets Statistic interval seconds. The total amount of the ICMP packets transmitted to WAN in the last Packets Statistic interval seconds. The total amount of the UDP packets transmitted to WAN in the last Packets Statistic interval seconds. The total amount of the TCP SYN packets transmitted to WAN in the last Packets Statistic interval seconds. Click the Save button to save the Packets Statistic interval value. Click the Auto-refresh checkbox to refresh automatically. Click the Refresh button to refresh immediately.

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TL-WR541G 54M Wireless Router User Guide Appendix A: FAQ 1. How do I configure the router to access Internet by ADSL users?

1) First, configure the ADSL modem configured in RFC1483 bridge model. 2) Connect the Ethernet cable from your ADSL modem to the WAN port on the router. The telephone cord plugs into the Line port of the ADSL modem. 3) Login to the router, click the Network menu on the left of your browser, and click "WAN" submenu. On the WAN page, select PPPoE for WAN Connection Type. Type user name in the User Name field and password in the Password field, finish by clicking Connect. Figure A-1 PPPoE Connection Type 4) If your ADSL lease is in pay-according-time mode, select Connect on Demand or connect Manually for Internet connection mode. Type an appropriate number for Max Idle Time to avoid wasting paid time. Otherwise, you can select Auto-connecting for Internet connection mode. Figure A-2 PPPoE Connection Mode Note:

a. Sometimes the connection cannot be disconnected although you specify a time to Max Idle Time, since some applications is visiting the Internet continually in the background. If you are a Cable user, please configure the router following the above steps. b. 2. How do I configure the router to access Internet by Ethernet users?

1) Login to the router, click the Network menu on the left of your browser, and click "WAN" submenu. On the WAN page, select Dynamic IP for "WAN Connection Type", finish by clicking Save. 2) Some ISPs require that you register the MAC Address of your adapter, which is connected to your cable or DSL modem during installation. If your ISP requires MAC register, login to the router and click the "Network" menu link on the left of

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TL-WR541G 54M Wireless Router User Guide your browser, and then click "MAC Clone" submenu link. On the "MAC Clone"

page, if your PCs MAC address is proper MAC address, click the "Clone MAC Address" button and your PCs MAC address will fill in the "WAN MAC Address"

field. Or else, type the MAC Address into the " WAN MAC Address" field. The format for the MAC Address is XX-XX-XX-XX-XX-XX. Then click the "Save"

button. It will take effect after rebooting. Figure A-3 MAC Clone 3. I want to use Netmeeting, what do I need to do?

1) If you start Netmeeting as a sponsor, you dont need to do anything with the router. If you start as a responsor, you need configure Virtual Server or DMZ Host. 2) 3) How to configure Virtual Server: Login to the router, click the Forwarding menu on the left of your browser, and click " Virtual Servers" submenu. On the "Virtual Server" page, enter 1720 into the blank below the Service Port, and your IP address below the IP Address, assuming 192.168.1.169 for an example, remember to Enable and Save. Figure A-4 Virtual Server Note: Your opposite side should call your WAN IP, which is displayed on the Status page. 4) How to enable DMZ Host: Login to the router, click the Forwarding menu on the left of your browser, and click " DMZ" submenu. On the "DMZ" page, click Enable radio and type your IP address into the DMZ Host IP Address field, using 192.168.1.169 as an example, remember to click the "Save button.

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TL-WR541G 54M Wireless Router User Guide Figure A-5 DMZ 4. I want to build a WEB Server on the LAN, what should I do?

1) Because the WEB Server port 80 will interfere with the WEB management port 80 on the router, you must change the WEB management port number to avoid interference. 2) To change the WEB management port number: Login to the router, click the Security menu on the left of your browser, and click "Remote Management"

submenu. On the "Remote Management" page, type a port number except 80, such as 88, into the "Web Management Port" field. Click Save and reboot the router. Figure A-6 Remote Management Note: If the above configuration takes effect, to configure to the router by typing http://192.168.1.1:88 (the routers LAN IP address: Web Management Port) in the address field of the web browser. 3) Login to the router, click the Forwarding menu on the left of your browser, and click the "Virtual Servers" submenu. On the "Virtual Server" page, enter 80 into the blank below the Service Port, and your IP address below the IP Address, assuming 192.168.1.188 for an example, remember to Enable and Save. Figure A-7 Virtual Server

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TL-WR541G 54M Wireless Router User Guide 5. The wireless stations cannot connect to the router. 1) Make sure the "Wireless Router Radio" is enabled. 2) Make sure that the wireless stations' SSID accord with the router's SSID. 3) Make sure the wireless stations have right KEY for encryption when the router 4) is encrypted. If the wireless connection is ready, but you cant access the router, check the IP Address of your wireless stations.

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TL-WR541G 54M Wireless Router User Guide Appendix B: Configuring the PCs In this section, well introduce how to install and configure the TCP/IP correctly in Windows 95/98. First make sure your Ethernet Adapter is working, refer to the adapters manual if needed. 1. Install TCP/IP component 1) On the Windows taskbar, click the Start button, point to Settings, and then click Control Panel. 2) Double-click the Network icon, click on the Configuration tab in the appearing Network window. 3) Click on the Add button. Select Protocol, and then click Add. Figure B-1 Add Network Protocol 4) Under Manufacturers on Select Network Protocol page, highlight Microsoft. Under Network Protocols, highlight TCP/IP. Click OK. TCP/IP protocol will take effect after reboot. Figure B-2 Select Network Protocol 2. Configure TCP/IP for your computer 1) On the Windows taskbar, click the Start button, point to Settings, and then click Control Panel. 2) Double-click the Network icon, highlight the bound TCP/IP tab in the appearing

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TL-WR541G 54M Wireless Router User Guide Network window that appears. An example shown in the following figure:

Figure B-3 Configuration tab 3) Click on Properties. The following TCP/IP Properties window will display and the IP Address tab is open on this window by default. 4) Now you have two ways to configure the TCP/IP protocol below:

Assigned by DHCP Sever a. Select Obtain an IP address automatically, as shown in the figure below:

Figure B-4 IP Address tab b. Do not type anything into the New gateway field on the Gateway tab.

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TL-WR541G 54M Wireless Router User Guide Figure B-5 Gateway tab c. Choose Disable DNS on the DNS configuration tab, as shown in the following figure:

Figure B-6 DNS Configuration tab Setting IP address manually a. Select Specify an IP address on IP Address tab, as shown in the following figure. If the router's LAN IP address is 192.168.1.1, type IP address is 192.168.1.x (x is from 2 to 254), and subnet mask is 255.255.255.0.

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TL-WR541G 54M Wireless Router User Guide Figure B-7 IP Address tab b. Type the routers LAN IP address (the default IP is 192.168.1.1) into the New gateway field on the Gateway tab, and click on the Add button, as shown in the figure:

Figure B-8 Gateway tab c. On the DNS Configuration tab, click Enable DNS radio, and type your computer name in to the Host field and a Domain (such as szonline.com) into the Domain field. In the DNS Server Search Order field you can type the DNS server IP addresses, which has been provided by your ISP, and

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TL-WR541G 54M Wireless Router User Guide click Add button. Shown below:

Figure B-9 DNS Configuration tab Now, all the configurations are finished, it will take effect after reboot.

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TL-WR541G 54M Wireless Router User Guide Appendix C: Specifications General Standards Protocols Ports Cabling Type Radio Data Rate Power Supply LEDs Safety & Emissions Environmental and Physical Operating Temp. Operating Humidity Dimensions (WD H) IEEE 802.3, 802.3u, 802.11b and 802.11g TCP/IP, PPPoE, DHCP, ICMP, NAT One 10/100M Auto-Negotiation WAN RJ45 port, Four 10/100M Auto-Negotiation LAN RJ45 ports supporting Auto MDI/MDIX 10BASE-T: UTP category 3, 4, 5 cable (maximum 100m) EIA/TIA-568 100 STP (maximum 100m) 100BASE-TX: UTP category 5, 5e cable (maximum 100m) EIA/TIA-568 100 STP (maximum 100m) 54/48/36/24/18/12/9/6/11/5.5/3/2/1Mbps 9V~ 0.8A Power, System, WLAN, Link/Act FCC, CE 0~40 (32~104) 10% - 95% RH, Non-condensing 7.35.71.7 in. (18614644 mm) (without antenna)

: , Speed

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TL-WR541G 54M Wireless Router User Guide Appendix D: Glossary

2x to 3x eXtended RangeTM WLAN Transmission Technology - The WLAN device with 2x to 3x eXtended RangeTM WLAN transmission technology make its sensitivity up to 105 dB, which gives users the ability to have robust, longer-range wireless connections. With this range-enhancing technology, a 2x to 3x eXtended RangeTM based client and access point can maintain a connection at as much as three times the transmission distance of traditional 802.11b and 802.11g products, for a coverage area that is up to nine times greater. A traditional 802.11b and 802.11g product transmission distance is about 300m, A 2x to 3x eXtended RangeTM based client and access point can maintain a connection transmission distance may be up to 830m. 802.11b - The 802.11b standard specifies a wireless networking at 11 Mbps using direct-sequence spread-spectrum the unlicensed radio spectrum at 2.4GHz, and WEP encryption for security. 802.11b networks are also referred to as Wi-Fi networks. technology and operating

(DSSS) in 802.11g - specification for wireless networking at 54 Mbps using direct-sequence spread-spectrum (DSSS) technology, using OFDM modulation and operating in the unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b devices, and WEP encryption for security.

DDNS (Dynamic Domain Name System) - The capability of assigning a fixed host and domain name to a dynamic Internet IP Address.

DHCP (Dynamic Host Configuration Protocol) - A protocol that automatically configure the TCP/IP parameters for the all the PCs that are connected to a DHCP server.

DMZ (Demilitarized Zone) - A Demilitarized Zone allows one local host to be exposed Internet gaming or for a special-purpose service such as the Internet to videoconferencing.

DNS (Domain Name Server) - An Internet Service that translates the names of websites into IP addresses.

Domain Name - A descriptive name for an address or group of addresses on the Internet.

DoS (Denial of Service) - A hacker attack designed to prevent your computer or network from operating or communicating.

DSL (Digital Subscriber Line) - A technology that allows data to be sent or received over existing traditional phone lines.

ISP (Internet Service Provider) - A company that provides access to the Internet

MTU (Maximum Transmission Unit) - The size in bytes of the largest packet that can be transmitted.

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TL-WR541G 54M Wireless Router User Guide

NAT (Network Address Translation) - NAT technology translates IP addresses of a local area network to a different IP address for the Internet.

PPPoE (Point to Point Protocol over Ethernet) - PPPoE is a protocol for connecting remote hosts to the Internet over an always-on connection by simulating a dial-up connection.

SSID - A Service Set Identification is a thirty-two character (maximum) alphanumeric key identifying a wireless local area network. For the wireless devices in a network to communicate with each other, all devices must be configured with the same SSID. This is typically the configuration parameter for a wireless PC card. It corresponds to the ESSID in the wireless Access Point and to the wireless network name.

WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a 64-bit or 128-bit or 152-bit shared key algorithm, as described in the IEEE 802.11 standard.

Wi-Fi - A trade name for the 802.11b wireless networking standard, given by the Wireless Ethernet Compatibility Alliance (WECA, see http://www.wi-fi.net), an industry standards group promoting interoperability among 802.11b devices.

WLAN (Wireless Local Area Network) - A group of computers and associated devices communicate with each other wirelessly, which network serving users are limited in a local area.

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TL-WR541G 54M Wireless Router User Guide Appendix E: Contact Information For help with the installation or operation of the TP-LINK TL-WR541G 54Mbps Wireless Router, please contact us. E-mail: support@tp-link.com Website: http://www.tp-link.com

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