CONTENTS

Chapter 1.

1.1 1.2 1.3

Introduction...1
Overview of the Router... 1 Features.... 1 Panel Layout.... 2 The Front Panel.... 2 The Rear Panel... 3

1.3.1 1.3.2

Chapter 2.
2.1 2.2 2.3 3.1 3.2 4.1 4.2 4.3 4.4

Connecting the Router..5

System Requirements... 5 Installation Environment Requirements... 5 Connecting the Router... 5

Chapter 3.

Quick Installation Guide...7
TCP/IP configuration.... 7 Quick Installation Guide.... 9

Chapter 4.

Configuring the Router...12
Login.... 12 Status... 13 Quick Setup.... 14 Network.... 15 LAN.... 15 WAN... 15 MAC Clone... 27 Wireless Settings... 28 MAC Filtering.... 33 Wireless Statistics.... 36 DHCP Settings.... 37 DHCP Clients List.... 38 Address Reservation... 39 Virtual Servers... 40 Port Triggering.... 42 DMZ... 44 UPnP.... 45 Firewall.... 46 IP Address Filtering... 47 Domain Filtering... 50
4.4.1 4.4.2 4.4.3 4.5 4.5.1 4.5.2 4.5.3 4.6 4.6.1 4.6.2 4.6.3 4.7 4.7.1 4.7.2 4.7.3 4.7.4 4.8 4.8.1 4.8.2 4.8.3

Wireless.... 28

DHCP... 37

Forwarding.... 40

Security.... 46
4.8.4 4.8.5 4.8.6 4.9 4.9.1 4.9.2 4.10 4.11
MAC Filtering.... 51 Remote Management.... 53 Advanced Security... 54 Binding Setting.... 56 ARP List.... 58
IP & MAC Binding Setting.... 56
Static Routing... 59 DDNS... 60 Dyndns.org DDNS.... 60 Oray.net DDNS... 61 Comexe.cn DDNS.... 61 Time... 63 Firmware... 64 Factory Defaults... 65 Backup and Restore... 65 Reboot.... 66 Password.... 66 Log.... 67 Statistics.... 68
4.11.1 4.11.2 4.11.3 4.12 4.12.1 4.12.2 4.12.3 4.12.4 4.12.5 4.12.6 4.12.7 4.12.8

System Tools... 62

Appendix A: FAQ....70 Appendix B: Configuring the PC...75 Appendix C: Specifications..79 Appendix D: Glossary...80

TL-WR542G

54Mbps Wireless Router User Guide

Chapter 1. Introduction

Thank you for choosing TL-WR542G 54Mbps Wireless Router.
1.1 Overview of the Router
The TL-WR542G 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-WR542G 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-WR542G 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/WPA2 and WPA-PSK/WPA2-PSK authentication, as well as TKIP/AES encryption security. It also supports VPN pass-through for sensitive data secure transmission. The TL-WR542G 54Mbps Wireless Router complies with the IEEE 802.11g and IEEE 802.11b standards so that the data transmission rate is up to 54Mbps. It adopts 2x to 3x eXtended Range WLAN transmission technology so that the transmission distance is 2-3 times of traditional IEEE 802.11g and IEEE 802.11b solutions, up to a distance of 855.36m tested in China. The transmission range is extended to 4-9 times. It is compatible with all IEEE 802.11g and IEEE 802.11b products. The TL-WR542G 54Mbps Wireless Router provides flexible access control so that parents or network administrators can establish restricted access policies for children or staff. It 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 in real time. This device supports Bridge mode which can make two APs communicate with each other wirelessly. The TL-WR542G 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.

in Figure 2-1. (If you have the wireless NIC and want to use wireless function, you can skip this step.) 5. 6. Connect the DSL/Cable Modem to the WAN port on the router, shown in Figure 2-1. 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 and Cable/DSL Modem.
Figure 2-1 Hardware Installation of the TL-WR542G 54Mbps Wireless Router
Chapter 3. Quick Installation Guide
After connecting the TL-WR542G Router into your network, you should configure it. This chapter describes how to configure the basic functions of your TL-WR542G Wireless Router. These procedures only take you a few minutes. You can access the Internet via the router immediately after successfully configuring.

3.1 TCP/IP configuration

The default IP address of the TL-WR542G 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 PC to the LAN ports of the router. There are then two ways to configure the IP address for your PC. Configure the IP address manually 1) Set up the TCP/IP Protocol for your PC. If you need instructions as to how to do this, please refer to Appendix B: "Configuring the PC." 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. If you need instructions as to how to do this, please refer to Appendix B: "Configuring the PC." 2) Power off the router and PC. Then turn on the router and restart the PC. The built-in DHCP server will assign IP address for the PC. Note: For Windows 98 OS or earlier, the PC and router may need to be restarted. Now, you can run the Ping command in the command prompt to verify the network connection between your PC and the router. The following example is in Windows 2000 OS. Open a command prompt, and type ping 192.168.1.1, and then press Enter. If the result displayed is similar to that shown in Figure 3-1, the connection between your PC and the router has been established. 7
Figure 3-1 Success result of Ping command If the result displayed is similar to that shown in Figure 3-2, it means that your PC has not connected to the router.

Only when you have configured the system time on System Tools -> Time page, will the Time-based Connecting function can take effect. 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 from the Internet connection, and you will 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 time 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 are 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 4-7 will then appear:
Figure 4-7 PPPoE Advanced Settings Packet MTU - The default MTU size is 1480 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, these should not be configured 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. 4. If you choose 802.1X + Dynamic IP, you should enter the follow parameters(Figure 4-8) :

Figure 4-11 L2TP Settings User Name/Password - Enter the User Name and Password provided by your ISP. These fields are case-sensitive. Dynamic IP/ Static IP Choose either as you are given by your ISP. Click the Connect button to connect immediately. Click the Disconnect button to disconnect immediately. Connect on Demand - You can configure the router to disconnect from 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 from your Internet connection, and you will 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. 8. If you choose PPTP, you should enter the following parameters (Figure 4-12):

Figure 4-12

PPTP Settings
User Name/Password - Enter the User Name and Password provided by your ISP. These fields are case-sensitive. Dynamic IP/ Static IP Choose either as you are given by your ISP and enter the ISPs IP address or the domain name. If you choose static IP and enter the domain name, you should also enter the DNS assigned by your ISP. And click the Save button. Click the Connect button to connect immediately. Click the Disconnect button to disconnect immediately. Connect on Demand - You can configure the router to disconnect from 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 26
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 are 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 from your Internet connection, and you will 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 are visiting the Internet continually in the background.

4.4.3 MAC Clone

You can configure the MAC address of the WAN port on this page, Figure 4-13:
Figure 4-13 MAC Address Clone Some ISPs require that you register the MAC Address of your adapter, which is connected to your cable/DSL Modem or Ethernet during installation. Changes are rarely needed 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.

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) 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. b) 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.
4.5.3 Wireless Statistics
This page shows MAC Address, Current Status, Received Packets and Sent Packets for each connected wireless station.
Figure 4-20 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 /WPA2/WPA2-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. 36
Note: This page will be refreshed automatically every 5 seconds.

4.6 DHCP

Figure 4-21 The DHCP menu There are three submenus under the DHCP menu (shown in Figure 4-21): 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.

4.6.1 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 PC(s) that are connected to the router on the LAN. The DHCP Server can be configured on the page (shown in Figure 4-22):
Figure 4-22 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. 37
TL-WR542G 192.168.1.199 is the default end address.

TL-WR542G 1.

Click the Modify in the entry you want to modify. If you want to delete the entry, click the Delete.
Modify the information. Click the Save button.
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 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.

4.7 Forwarding

Figure 4-26 The Forwarding menu There are four submenus under the Forwarding menu (shown in Figure 4-26): 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.

4.7.1 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 the 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 4-27:
Figure 4-27 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 the start port, YYY is the end port). IP Address - The IP Address of the PC providing the service application. Protocol - The protocol used for this application, either TCP, UDP, or All (all protocols supported by the router). Status - The status of this entry either Enabled or Disabled. To setup a virtual server entry: 1. 2. Click the Add New button. (pop-up Figure 4-28) Select the service you want to use from the Common Service Port list. 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. 3. 4. 5. 6. Type the IP Address of the computer in the Server IP Address box. Select the protocol used for this application, either TCP or UDP, or All. Select the Enable checkbox to enable the virtual server. Click the Save button.

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 PC(s) 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:

4.8.4 MAC Filtering

Like the IP Address Filtering page, the MAC Address Filtering page (shown in Figure 4-39) allows you to control access to the Internet by users on your local network based on their MAC Address.
Figure 4-39 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 4-40:
Figure 4-40 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. 3. 4. Type the description of the PC in the Description field. Fox example: Johns PC. Status - Select Enabled or Disabled for this entry on the Status pull-down list. 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.
TL-WR542G To modify or delete an existing entry: 1.
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 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 PC 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 PC(s) with effective rules to access the Internet" on the Firewall page and the following MAC address filtering list on this page:

4.8.5 Remote Management

You can configure the Remote Management function on this page shown in Figure 4-41. This feature allows you to manage your Router from a remote location, via the Internet.
Figure 4-41 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. 53

Figure 4-47 Find IP & MAC Binding Entry Click the Enable All button to make all entries enabled. Click the Delete All button to delete all entries.

4.9.2 ARP List

To manage the computer, you could observe the computers in the LAN by checking the relationship of MAC address and IP address on the ARP list, and you could configure the items on the ARP list also. This page displays the ARP List; it shows all the existing IP & MAC Binding entries (shown in Figure 4-48).

Figure 4-48 ARP List

MAC Address - The MAC address of the controlled computer in the LAN. IP Address - The assigned IP address of the controlled computer in the LAN. Status - Enabled or Disabled of the MAC address and IP address binding. Configure - Load or delete item. Load - Load the item to the IP & MAC Binding list. Delete - Delete the item.
Click the Bind All button to bind all the current items, available after enable. Click the Load All button to load all items to the IP & MAC Binding list. Click the Refresh button to refresh all items. Note: An item could not be loaded to the IP & MAC Binding list if the IP address of the item has been loaded before. Error warning will prompt as well. Likewise, "Load All" only loads the items without interference to the IP & MAC Binding list.

4.10 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 4-49).
Figure 4-49 Static Routing To add static routing entries: 1. 2. Click the Add New button. (pop-up Figure 4-50) 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. 3. 4. Select Enabled or Disabled for this entry on the Status pull-down list. Click the Save button to save it.
Figure 4-50 Add or Modify a Static Route Entry To modify or delete an existing entry: 59
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

4.11 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.dyndns.org, www.oray.net or

2. Enter daylight saving beginning time and end time in the right blanks.

3. Click Save.

Note: 1. This setting will be used for some time-based functions such as firewall. You must specify your time zone once you login to the router successfully, if not, the time limited on these functions will not take effect. The time will be lost if the router is turned off. The router will obtain GMT automatically from Internet if it has already connected to Internet.

4.12.2 Firmware

The page (shown in Figure 4-56) allows you to upgrade the latest version firmware to keep your router up-to-date.
Figure 4-56 Firmware Upgrade New firmware is posted at www.tp-link.com and can be downloaded for free. If the router is not experiencing difficulties, there is no need to upgrade firmware, unless the new firmware supports a new feature you need. Note: When you upgrade the router's firmware, you will lose current configuration settings, so make sure you backup the routers settings before you upgrade its firmware. To upgrade the router's firmware, follow these instructions: 1. 2. 3. Download the latest firmware upgrade file from the TP-LINK website (www.tp-link.com). Click Browse to view the folders and select the downloaded file. 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:

TL-WR542G 1. 2.

Do not turn off the router or press the Reset button while the firmware is being upgraded. The router will reboot after the Upgrading has been finished.

4.12.3 Factory Defaults

This page (shown in Figure 4-57) allows you to restore the factory default settings for the router.
Figure 4-57 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.
4.12.4 Backup and Restore
This page (shown in Figure 4-58) allows you to save current configuration of router as backup or restore the configuration file you saved before.

Figure A-3 3.

MAC Clone
I want to use Netmeeting, what do I need to do? 1) If you start a Netmeeting as a host, no configuration is needed but entering the invitees IP address. 2) If you start a Netmeeting as an invitee, you need to configure Virtual Server or DMZ Host first. 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, click Add New, then on the Add or Modify a Virtual Server page, 192.168.1.169 for an example, remember to Enable and Save. enter 1720 into the blank behind the Service Port, and your IP address behind the IP Address, assuming

Figure A-4

Virtual Servers 71

Figure A-5

Add or Modify a Virtual server Entry
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.

Figure A-6 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-7 Note:

Remote Management
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, click Add New, then on the Add or Modify a Virtual Server page, enter 80 into the blank behind the Service Port, and your IP address behind the IP Address, assuming 192.168.1.188 for an example, remember to Enable and Save.
Figure A-8 Virtual Servers
Figure A-9 Add or Modify a Virtual server Entry 5. The wireless stations cannot connect to the router. 1) Make sure the "Wireless Router Radio" is enabled. 73

TL-WR542G 2) 3)

Make sure that the wireless stations' SSID accord with the router's SSID. Make sure the wireless stations have right KEY for encryption when the router is encrypted.
If the wireless connection is ready, but you cant access the router, check the IP Address of your wireless stations.

Appendix B: Configuring the PC
In this section, well introduce how to install and configure the TCP/IP correctly in Windows XP. 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) Click the Network and Internet Connections icon, and then click on the Network Connections tab in the appearing window. 3) Right click the icon that showed below, select Properties on the prompt page.
Figure 1 4) In the prompt page that showed below, double click on the Internet Protocol (TCP/IP).
Figure 2 5) The following TCP/IP Properties window will display and the IP Address tab is open on this window by default. Now you have two ways to configure the TCP/IP protocol below: Setting IP address automatically Select Obtain an IP address automatically, Choose Obtain DNS server automatically, as shown in the Figure below:
Figure 3 Setting IP address manually Select Use the following IP address radio button. And the following items available 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. 3 Type the routers LAN IP address (the default IP is 192.168.1.1) into the Default gateway field. 4 Select Use the following DNS server addresses radio button. In the Preferred DNS Server field you can type the DNS server IP address, which has been provided by your ISP

Figure 4

Appendix C: Specifications
General Standards Protocols Ports IEEE 802.3, 802.3u, 802.11b and 802.11g TCP/IP, PPPoE, DHCP, ICMP, NAT, SNTP One 10/100M Auto-Negotiation WAN RJ45 port, Four 10/100M Auto-Negotiation LAN RJ45 ports supporting Auto MDI/MDIX Cabling Type 10BASE-T: UTP category 3, 4, 5 cable (maximum 100m) EIA/TIA-STP (maximum 100m) 100BASE-TX: UTP category 5, 5e cable (maximum 100m) EIA/TIA-STP (maximum 100m) Radio Data Rate LEDs Safety & Emissions 54/48/36/24/18/12/9/6Mbps or 11/5.5/3/2/1Mbps Power, SYS, WLAN, WAN, 1-4 FCC, CE
Environmental and Physical Operating Temp. Operating Humidity Dimensions (WDH) 0~40 (32~104) 10% - 90% RH, Non-condensing 6.94.41.2 in. (17411130 mm) (without antenna)

Appendix D: Glossary

2x to 3x eXtended Range WLAN Transmission Technology - The WLAN device with 2x to 3x eXtended Range 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 Range 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 Range 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 (DSSS) technology and operating in the unlicensed radio spectrum at 2.4GHz, and WEP encryption for security. 802.11b networks are also referred to as Wi-Fi networks. 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 PC(s) that are connected to a DHCP server. DMZ (Demilitarized Zone) - A Demilitarized Zone allows one local host to be exposed to the Internet for a special-purpose service such as Internet gaming or videoconferencing. DNS (Domain Name System) 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. 80