TP-Link TL-WR542G User Manual
COPYRIGHT & TRADEMARKS
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.
is a registered
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 .............................................................................................. 20
5.5 Wireless ............................................................................................................. 21
5.5.1 Wireless Settings ..................................................................................... 21
5.5.2 MAC Filtering ........................................................................................... 23
5.5.3 Wireless Statistics.................................................................................... 26
5.6 DHCP................................................................................................................. 27
5.6.1 DHCP Settings......................................................................................... 27
5.6.2 DHCP Clients List .................................................................................... 28
5.6.3 Address Reservation................................................................................ 28
5.7 Forwarding ......................................................................................................... 30
5.7.1 Virtual Servers ......................................................................................... 30
5.7.2 Port Triggering ......................................................................................... 31
5.7.3 DMZ ......................................................................................................... 33
5.7.4 UPnP ....................................................................................................... 34
5.8 Security.............................................................................................................. 35
5.8.1 Firewall .................................................................................................... 35
5.8.2 IP Address Filtering .................................................................................. 36
5.8.3 Domain Filtering....................................................................................... 37
5.8.4 MAC Filtering ........................................................................................... 39
5.8.5 Remote Management .............................................................................. 40
5.8.6 Advanced Security ................................................................................... 41
5.9 Static Routing..................................................................................................... 43
5.10 DDNS............................................................................................................... 44
5.10.1 Oray.net DDNS ...................................................................................... 44
5.10.2 Comexe.cn DDNS.................................................................................. 45
5.11 System Tools.................................................................................................... 45
5.11.1 Time ....................................................................................................... 46
5.11.2 Firmware ................................................................................................ 46
5.11.3 Factory Defaults ..................................................................................... 47
5.11.4 Reboot ................................................................................................... 48
5.11.5 Password ............................................................................................... 48
5.11.6 Log ......................................................................................................... 49
5.11.7 Statistics................................................................................................. 49
Appendix A: FAQ............................................................................................................. 51
Appendix B: Configuring the PCs.................................................................................... 55
Appendix C: Specifications.............................................................................................. 60
Appendix D: Glossary ..................................................................................................... 61
Appendix E: Contact Information..................................................................................... 63
TL-WR542G 54M Wireless Router User Guide
Package contents
The following contents should be found in your box:
One TL-WR542G 54Mbps Wireless Router
One AC power Adapter for TL-WR542G 54Mbps Wireless Router
Quick Installation Guide
One Resource CD for TL-WR542G 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-WR542G 54Mbps Wireless Router for assistance.
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TL-WR542G 54M Wireless Router User Guide
Chapter 1: About this Guide
Thank you for choosing the TL-WR542G 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 Range
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 router’s
functions.
TM
WLAN transmission technology so that
1.1 Purposes
This Guide tells you how to use the TL-WR542G 54Mbps Wireless Router.
1.2 Conventions
The router mentioned in this guide stands for TL-WR542G 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-WR542G 54M Wireless Router User Guide
Chapter 2: Introduction
2.1 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 and WPA-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/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 802.11g 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 on real time.
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.
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 Range
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
TM
WLAN transmission technology
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TL-WR542G 54M Wireless Router User Guide
Supports Virtual Server, Port Triggering, and DMZ host
Built-in firewall supporting IP address filtering, Domain Name filtering, and MAC
address filtering
Supports connecting/disconnecting Internet at a specified time of day
Supports access control, allowing parents and network administrators to establish
restricted access policies based on the time of day for children or staff
Supports TCP/IP, PPPoE, DHCP, ICMP, NAT, SNTP
Supports UPnP, Dynamic DNS, Static Routing, VPN pass-through
Supports Traffic Stat.
Supports ICMP-FLOOD, UDP-FLOOD, TCP-SYN-FLOOD filter
Ignores Ping packets from WAN or LAN ports
Supports firmware upgrade
Supports Remote and Web management
Detachable reverse SMA connector antenna
2.3 Panel Layout
2.3.1 The Front Panel
The front panel of the TL-WR542G 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.
Figure 2-1: Front Panel sketch
Name Action Description
Power
Not lit No Power
Lit up Power on
Lit up The router is initialising
System
Flashing The router is working properly
Not lit The router has a hardware error
Not lit 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 linked device is running at 10Mbps
Link/Act
Speed
Lit up
Flashing
Not lit
Lit up The linked device is running at 100Mbps
WLAN
Not lit The Wireless Radio function is disabled
Flashing 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:)
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TL-WR542G 54M Wireless Router User Guide
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
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-WR542G
54Mbps Wireless Router, use of a different adapter may result in product damage.
RESET
1WAN 234
Figure 2-2: Rear Panel sketch
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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-WR542G 54M Wireless Router User Guide
RESET
To WAN
（）
XDSL Cable Et hernet
、、
4321WAN
To LAN
Switch/Hub
Figure 3-1 Hardware Installation of the TL-WR542G 54Mbps Wireless Router
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TL-WR542G 54M Wireless Router User Guide
Chapter 4: 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 configured.
4.1 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 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
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).
Appendix B: "Configuring the PCs."
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-WR542G 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. 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.
2. 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-WR542G 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-WR542G 54M Wireless Router User Guide
contact your ISP.
If you choose " Dynamic I P", 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-WR542G 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.
Region - Select your region from the pull-down list. This field specifies the region
where the wireless function of the router can be used. It may be illegal to use the
wireless function of the router in a region other than one of those specified in this
filed.
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
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
5.11.4: "Rebooting the Router"
Click the Next button, you will then see the Finish page:
Section 5.5: "Wireless."
Section
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-WR542G 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-WR542G 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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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.
b. 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.
c. 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.
5.4.2 WAN
You can configure the WAN port parameters on this page.
First, please choose the WAN Connection Type (Dynamic IP/Static IP/PPPoE/802.1x +
Dynamic IP/802.1x + Static IP) to the Internet. The default type is PPPoE. If you aren’t
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-WR542G 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).
If you are also given a user name and a password for 802.1x authentication, you
should select 802.1x + Dynamic IP for WAN Connection Type, and a user name
and a password will then appear, shown in figure 5-4a:
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TL-WR542G 54M Wireless Router User Guide
Figure 5-4a WAN - 802.1X + Dynamic IP
User Name - Enter the user name for 802.1x authentication provided by your ISP
Password - Enter the password for 802.1x authentication provided by your ISP.
Click Login button to start 802.1x authentication.
Click Logout button to end 802.1x authentication.
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:
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.
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