TP-Link MR5-WR542G User manual

MR5-WR542G
54M Wireless Router
Rev：1.0.0
•2x to 3x eXtended Range™
•2.4GHz y802.11g/b

COPYRIGHT & TRADEMARKS
Specifications are subject to change without notice. is a registered 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 © 2008 TP-LINK TECHNOLOGIES CO., LTD. All rights
reserved.
http://www.tp-link.com
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.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•Consult the dealer or an experienced radio/ TV technician for help.
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.
Any changes or modifications 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, this grant is applicable to only Mobile
Configurations. The antennas 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 Mark Warning
This is a class B product. In a domestic environment, this product may cause radio interference, in which
case the user may be required to take adequate measures.
National Restrictions
2400.0-2483.5 MHz
Country Restriction Reason/remark
Bulgaria General authorization required for outdoor use
and public service
France Outdoor use limited to 10
mW e.i.r.p. within the band
2454-2483.5 MHz
Military Radiolocation use. Refarming of the 2.4
GHz band has been ongoing in recent years to
allow current relaxed regulation. Full
implementation planned 2012
Italy If used outside of own premises, general
authorization is required
Luxembourg None General authorization required for network and
service supply(not for spectrum)
Norway Implemented This subsection does not apply for the
geographical area within a radius of 20 km from
the centre of Ny-Ålesund
Russian
Federation
Only for indoor applications

CONTENT
Package Contents..............................................................................................................1
Chapter 1. Introduction..................................................................................................2
1.1 Conventions..........................................................................................................................2
1.2 Overview of the Router .........................................................................................................2
1.3 Features................................................................................................................................2
1.4 Panel Layout.........................................................................................................................3
1.4.1 The Front Panel .......................................................................................................3
1.4.2 The Rear Panel ........................................................................................................4
Chapter 2. Connecting the Router ................................................................................6
2.1 System Requirements...........................................................................................................6
2.2 Installation Environment Requirements ................................................................................6
2.3 Connecting the Router..........................................................................................................6
Chapter 3. Quick Installation Guide..............................................................................8
3.1 TCP/IP configuration.............................................................................................................8
3.2 Quick Installation Guide......................................................................................................10
Chapter 4. Configuring the Router..............................................................................13
4.1 Login...................................................................................................................................13
4.2 Status..................................................................................................................................14
4.3 Quick Setup ........................................................................................................................16
4.4 Network...............................................................................................................................16
4.4.1 LAN ........................................................................................................................16
4.4.2 WAN.......................................................................................................................17
4.4.3 MAC Clone.............................................................................................................27
4.5 Wireless ..............................................................................................................................28
4.5.1 Wireless Settings ...................................................................................................28
4.5.2 MAC Filtering .........................................................................................................32
4.5.3 Wireless Statistics ..................................................................................................35
4.6 DHCP..................................................................................................................................36
4.6.1 DHCP Settings .......................................................................................................36
4.6.2 DHCP Clients List...................................................................................................37
4.6.3 Address Reservation..............................................................................................37
4.7 Forwarding..........................................................................................................................39
4.7.1 Virtual Servers........................................................................................................39

4.7.2 Port Triggering .......................................................................................................40
4.7.3 DMZ .......................................................................................................................42
4.7.4 UPnP......................................................................................................................43
4.8 Security...............................................................................................................................44
4.8.1 Firewall...................................................................................................................44
4.8.2 IP Address Filtering................................................................................................45
4.8.3 Domain Filtering.....................................................................................................47
4.8.4 MAC Filtering .........................................................................................................49
4.8.5 Remote Management.............................................................................................51
4.8.6 Advanced Security .................................................................................................51
4.9 IP & MAC Binding Setting ...................................................................................................53
4.9.1 Binding Setting .......................................................................................................53
4.9.2 ARP List .................................................................................................................55
4.10 Static Routing .....................................................................................................................56
4.11 DDNS..................................................................................................................................57
4.11.1 Dyndns.org DDNS..................................................................................................57
4.11.2 Oray.net DDNS ......................................................................................................58
4.11.3 Comexe.cn DDNS..................................................................................................59
4.12 System Tools ......................................................................................................................60
4.12.1 Time .......................................................................................................................61
4.12.2 Firmware ................................................................................................................62
4.12.3 Factory Defaults .....................................................................................................63
4.12.4 Backup and Restore...............................................................................................63
4.12.5 Reboot....................................................................................................................64
4.12.6 Password ...............................................................................................................64
4.12.7 Log .........................................................................................................................65
4.12.8 Statistics.................................................................................................................65
Appendix A: FAQ .............................................................................................................67
Appendix B: Configuring the PCs ...............................................................................71
Appendix C: Specifications ............................................................................................75
Appendix D: Glossary .....................................................................................................76

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Package Contents
The following items should be found in your box:
¾One MR5-WR542G 54Mbps Wireless Router
¾One detachable antenna
¾One AC power Adapter for MR5-WR542G 54Mbps Wireless Router
¾Quick Installation Guide
¾One Resource CD for MR5-WR542G 54Mbps Wireless Router, including:
•This Guide
•Other Helpful Information
)Note:
Make sure that the package contains the above items. If any of the listed items are damaged or missing,
please contact with your distributor.

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Chapter 1. Introduction
Thank you for choosing the MR5-WR542G 54Mbps Wireless Router.
1.1 Conventions
The router mentioned in this guide stands for MR5-WR542G 54Mbps Wireless Router.
1.2 Overview of the Router
The MR5-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 MR5-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 MR5-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 MR5-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 MR5-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.
The MR5-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.
1.3 Features
¾Complies with IEEE 802.11g, IEEE 802.11b, IEEE 802.3, IEEE 802.3u standards.
¾1 10/100M Auto-Negotiation RJ45 WAN port, 4 10/100M Auto-Negotiation RJ45 LAN ports,

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supporting Auto MDI/MDIX.
¾Adopts 2x to 3x eXtended Range™ wireless LAN transmission technology.
¾Supports 54/48/36/24/18/12/9/6Mbps or 11/5.5/3/2/1Mbps data transfer rates.
¾Provides WPA/WPA2, WPA-PSK/WPA2-PSK authentication, TKIP/AES encryption security.
¾Shares data and Internet access for users, supporting PPPoE, Dynamic IP, Static IP, L2TP, PPTP,
Big Pond Cable Internet access.
¾Supports Virtual Server, Special Application and DMZ host.
¾Supports UPnP, Dynamic DNS, Static Routing, VPN Pass-through.
¾Detachable reverse SMA connector Antenna.
¾Connecting Internet on demand and disconnecting from the Internet when idle for PPPoE.
¾Built-in NAT and DHCP server supporting static IP address distributing.
¾Built-in firewall supporting IP address filtering, Domain Name filtering, and MAC address filtering.
¾Supports connecting/disconnecting from the Internet on a specified time of day.
¾Supports access control, parents and network administrators can establish restricted access
policies based on time of day for children or staff.
¾Provides 64/128/152-bit WEP encryption security and wireless LAN ACL (Access Control List).
¾Supports Flow Statistics.
¾Supports ICMP-FLOOD, UDP-FLOOD, and TCP-SYN-FLOOD filter.
¾Ignores Ping packets from WAN or LAN ports.
¾Supports firmware upgrade.
¾Supports Web management.
1.4 Panel Layout
1.4.1 The Front Panel
The front panel of the MR5-WR542G consists of several LED indicators, which is designed to indicate
connections. View from left to right. Table 1-1 describes the LEDs on the front panel of the router.
Figure 1-1 Front Panel sketch

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Name Status Description
Off Power off
PWR On Power on
Name Status Description
On The router is initializing
Flashing The router is working properly
SYS
Off The router has a hardware error
Off There is no wireless device linked to the router
WLAN Flashing The Wireless function is enabled
Off There is no device linked to the corresponding port
On There is a device linked to the corresponding port but no activity
WAN,
LAN 1-4 Flashing There is an active device linked to the corresponding port
Table 1-1 The LEDs description
1.4.2 The Rear Panel
The rear panel contains the following features. (View from left to right)
Figure 1-2 Rear Panel sketch
The following parts are located on the rear panel (View from left to right).
¾Power socket: The Power socket is where you will connect the power adapter. Please use
the power adapter provided with this MR5-WR541GS Wireless Router.

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¾LAN 1,2,3,4: These ports (1, 2, 3, 4) connect the router to the local PC(s).
¾WAN: This WAN port is where you will connect the DSL/cable Modem, or Ethernet
¾Reset button
There are two ways to reset to 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 SYS 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.
¾.Wireless antenna To receive and transmit the wireless data.

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Chapter 2. Connecting the Router
2.1 System Requirements
¾Broadband Internet Access Service (DSL/Cable/Ethernet)
¾One DSL/Cable modem that has an RJ45 connector (you do not need it if you connect the router to
the Ethernet)
¾Each PC in the LAN needs a working Ethernet Adapter and an Ethernet cable with RJ45 connectors
¾TCP/IP protocol must be installed on each PC
¾Web browser, such as Microsoft Internet Explorer 5.0 or later, Netscape Navigator 6.0 or later
2.2 Installation Environment Requirements
¾Do not place in direct sunlight or near a heater or heating vent
¾Do not cluttered or crowded. There should be at least 2 inches (5 cm) of clear space on all sides of
the router
¾Well ventilated (especially if it is in a closet)
¾Operating temperature: 0 ~40 (32 ~104 )℃℃℉ ℉
¾Operating Humidity: 10%~90%RH, Non-condensing
2.3 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, 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 will connect wirelessly. 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 in your LAN to the LAN Ports on the router, shown in
Figure 2-1. (If you have the wireless NIC and want to use wireless function, you can skip this step.)
5. Connect the DSL/Cable Modem to the WAN port on the router, shown in Figure 2-1.
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 and Cable/DSL Modem.

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Figure 2-1 Hardware Installation of the MR5-WR542G 54Mbps Wireless Router

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Chapter 3. Quick Installation Guide
After connecting the MR5-WR542G Router into your network, you should configure it. This chapter
describes how to configure the basic functions of your MR5-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 MR5-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.
¾Configure 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)
¾Obtain 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.
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.

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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.
Figure 3-2 Failure result of Ping command
Please check the connection following these steps:
1. Is the connection between your PC and the router correct?
Note: The 1/2/3/4 LEDs of LAN port which you link to 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

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3.2 Quick Installation Guide
With a Web-based (Internet Explorer or Netscape®Navigator) utility, it is easy to configure and manage
the MR5-WR542G 54Mbps Wireless Router. 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 3-3 Login the router
After a moment, a login window will appear similar to that shown in Figure 3-4. Enter admin for the User
Name and Password, both in lower case letters. Then click the OK button or press the Enter key.
Figure 3-4 Login Windows
Note: If the above screen does not pop-up, 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.

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Figure 3-5 Quick Setup
Click Next, and then Choose WAN Connection Type page will appear, shown in Figure 3-6.
Figure 3-6 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 3-7:
Figure 3-7 Quick Setup - PPPoE
¾User 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 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 3-8:

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Figure 3-8 Quick Setup - Static IP
Note - The IP parameters should have been provided by your ISP.
¾IP 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.
¾Subnet Mask - The Subnet Mask is used for the WAN IP address, it is usually 255.255.255.0
¾Default Gateway - Enter the gateway IP address into the box if required.
¾Primary DNS - Enter the DNS Server IP address into the boxes if required.
¾Secondary 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 3-9.
Figure 3-9 Quick Setup - Wireless settings
In this page, you can configure the following wireless parameters:
¾Wireless 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.
¾SSID - Enter a value of up to 32 characters. The same SSID must be assigned to 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.

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¾Region - 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 field.
¾Channel -The current channel in use. This field determines which operating frequency will be
used.
¾Mode - 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 5.11.5: "Rebooting the
Router"
Click the Next button. You will then see the Finish page:
Figure 3-10 Quick Setup - Finish
After finishing all configurations of basic network parameters, please click Finish button to exit this
Quick Setup.
Chapter 4. Configuring the Router
This chapter describes each Web page's key functions.
4.1 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
eleven main menus are: Status, Quick Setup, Network, Wireless, DHCP, Forwarding, Security, IP &
MAC Binding Setting, 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.
The detailed explanations for each Web page key’s function are listed below.

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4.2 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, just click Connect to establish the connection.
Traffic Statistics
This field displays the router's traffic statistics.
4. System Up Time
Here displayed the total up time of the router from when it was switched on or reset.
Required field

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Figure 4-1 Router Status