LINKSYS WRT300NV11 Wireless-N Broadband Router User Manual

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2.4 GHz Wireless-N
Broadband Router
WIRELESS
Model No.
WRT300N
User Guide
Wireless-N Broadband Router
Copyright and Trademarks
Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco
Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2007 Cisco Systems, Inc. All
rights reserved. Other brands and product names are trademarks or registered trademarks of their respective
holders.
WARNING: This product contains chemicals, including lead, known
to the State of California to cause cancer, and birth defects or other
reproductive harm. Wash hands after handling.
How to Use This User Guide
This User Guide has been designed to make understanding networking with the Wireless-N Broadband Router
easier than ever. Look for the following items when reading this User Guide:
This checkmark means there is a note of interest and is
something you should pay special attention to while using
the Wireless-N Broadband Router.
This exclamation point means there is a caution or warning
and is something that could damage your property or the
Wireless-N Broadband Router.
This question mark provides you with a reminder about
something you might need to do while using the Wireless-N
Broadband Router.
In addition to these symbols, there are definitions for technical terms that are presented like this:
word: definition.
Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like
this:
Figure 0-1: Sample Figure Description
Figure numbers and descriptions can also be found in the “List of Figures” section in the “Table of Contents”.
WRT300N v1.1-UG-70118 NC DF
Wireless-N Broadband Router
Table of Contents
Chapter 1: Introduction
Welcome
What’s in this User Guide?
Chapter 2: Planning Your Wireless Network
Network Topology
Ad-Hoc versus Infrastructure Mode
Network Layout
Chapter 3: Getting to Know the Wireless-N Broadband Router
The Back Panel
The Front Panel
The Top Panel
Chapter 4: Connecting the Wireless-N Broadband Router
Hardware Installation
Chapter 5: Configuring the Wireless-N Broadband Router
Overview
How to Access the Web-based Utility
The Setup Tab - Basic Setup
The Setup Tab - DDNS
The Setup Tab - MAC Address Clone
The Setup Tab - Advanced Routing
The Wireless Tab - Basic Wireless Settings
The Wireless Tab - Wireless Security
The Wireless Tab - Wireless MAC Filter
The Wireless Tab - Advanced Wireless Settings
The Security Tab - Firewall
The Security Tab - VPN Passthrough
The Access Restrictions Tab - Internet Access Policy
The Applications & Gaming Tab - Single Port Forwarding
The Applications & Gaming Tab - Port Range Forwarding
The Applications & Gaming Tab - Port Range Triggering
The Applications & Gaming Tab - DMZ
The Applications and Gaming Tab - QoS
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Wireless-N Broadband Router
The Administration Tab - Management
The Administration Tab - Log
The Administration Tab - Diagnostics
The Administration Tab - Factory Defaults
The Administration Tab - Firmware Upgrade
The Status Tab - Router
The Status Tab - Local Network
The Status Tab - Wireless
Appendix A: Troubleshooting
Common Problems and Solutions
Frequently Asked Questions
Appendix B: Wireless Security
Security Precautions
Security Threats Facing Wireless Networks
Appendix C: Upgrading Firmware
Appendix D: Windows Help
Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter
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Windows 98SE or Me Instructions
Windows 2000 or XP Instructions
For the Router’s Web-based Utility
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Appendix F: Glossary
Appendix G: Specifications
Appendix H: Warranty Information
Appendix I: Regulatory Information
Appendix J: Contact Information
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Wireless-N Broadband Router
List of Figures
Figure 3-1: The Router’s Back Panel
Figure 3-2: The Router’s Front Panel
Figure 3-3: The Router’s Top Panel
Figure 4-1: Connect the Modem
Figure 4-2: Connect a PC
Figure 4-3: Connect the Power
Figure 5-1: Router Login
Figure 5-2: Setup Tab - Basic Setup
(Automatic Configuration - DHCP)
Figure 5-3: Static IP
Figure 5-4: PPPoE
Figure 5-5: PPTP
Figure 5-6: Telstra Cable
Figure 5-7: L2TP
Figure 5-8: DHCP Reservation
Figure 5-9: Setup Tab - DDNS (DynDNS.org)
Figure 5-10: Setup Tab - DDNS (TZO.com)
Figure 5-11: Setup Tab - MAC Clone
Figure 5-12: Setup Tab - Advanced Routing
Figure 5-13: Routing Table
Figure 5-14: Wireless Tab - Manual Wireless Settings
Figure 5-15: Wireless Tab - Wi-Fi Protected Setup
Figure 5-16: Wireless Tab - Wireless Security
(WPA-Personal)
Figure 5-17: Wireless Security - WPA2-Personal
Figure 5-18: Wireless Security - WPA-Enterprise
Figure 5-19: Wireless Security - WPA2-Enterprise
Figure 5-20: Wireless Security - RADIUS
Figure 5-21: Wireless Security - WEP
Figure 5-22: Wireless Tab - Wireless MAC Filter
Figure 5-23: Wireless Client List
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Wireless-N Broadband Router
Figure 5-24: Wireless Tab - Advanced Wireless Settings
Figure 5-25: Security Tab - Firewall
Figure 5-26: VPN Passthrough
Figure 5-27: Access Restrictions Tab - Internet Access Policy
Figure 5-28: Summary
Figure 5-29: List of PCs
Figure 5-30: Applications & Gaming Tab Single Port Forwarding
Figure 5-31: Applications & Gaming Tab Port Range Forwarding
Figure 5-32: Applications & Gaming Tab Port Range Triggering
Figure 5-33: Applications & Gaming Tab - DMZ
Figure 5-34: DHCP Client Table
Figure 5-35: Applications & Gaming Tab - QoS (Applications)
Figure 5-36: QoS - Applications (Add a New Application)
Figure 5-37: QoS - Online Games
Figure 5-38: QoS - MAC Address
Figure 5-39: QoS - MAC Address
Figure 5-40: QoS - Voice Device
Figure 5-41: Administration Tab - Management
Figure 5-42: Administration Tab - Log
Figure 5-43: View Log
Figure 5-44: Administration Tab - Diagnostics
Figure 5-45: Ping Test
Figure 5-46: Traceroute Test
Figure 5-47: Administration Tab - Factory Defaults
Figure 5-48: Administration Tab - Firmware Upgrade
Figure 5-49: Status Tab - Router
Figure 5-50: Status Tab - Local Network
Figure 5-51: Status Tab - Local Network
Figure 5-52: Status Tab - Wireless
Figure C-1: Firmware Upgrade
Figure E-1: IP Configuration Screen
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Wireless-N Broadband Router
Figure E-2: MAC Address/Adapter Address
Figure E-3: MAC Address/Physical Address
Figure E-4: Wireless MAC Filter
Figure E-5: MAC Address Cloning
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Wireless-N Broadband Router
Chapter 1: Introduction
Welcome
Thank you for choosing the Linksys Wireless-N Broadband Router. The Wireless-N Broadband Router will allow
you to network wirelessly better than ever, sharing Internet access, files and fun, easily and securely and with a
greater range of up to three times farther than standard Wireless-G.
How does the Wireless-N Broadband Router do all of this? A router is a device that allows access to an Internet
connection over a network. With the Wireless-N Broadband Router, this access can be shared over the four
switched ports or via the wireless broadcast.
Use the WPA2 standard to secure your wireless network while the whole network is protected through a Stateful
Packet Inspection (SPI) firewall and Network Address Translation (NAT) technology. The Router also offers VPN
passthrough and other features, which can be configured through the easy-to-use, browser-based utility.
The incredible speed of Wireless-N makes it ideal for media-centric applications like streaming video and Voice
over IP (VoIP) telephony, so your network can handle multiple data streams at the same time, with no degradation
in performance.
But what does all of this mean?
Networks are useful tools for sharing computer resources. You can access one printer from different computers
and access data located on another computer's hard drive. Networks are even used for playing multiplayer video
games. So, networks are not only useful in homes and offices, they can also be fun.
PCs on a wired network create a LAN, or Local Area Network. They are connected with Ethernet cables, which is
why the network is called “wired”.
PCs equipped with wireless cards or adapters can communicate without cumbersome cables. By sharing the
same wireless settings, within their transmission radius, they form a wireless network. This is sometimes called
a WLAN, or Wireless Local Area Network. The Wireless-N Broadband Router bridges wireless and wired networks,
allowing them to communicate with each other.
wpa (wi-fi protected access): a wireless security
protocol using TKIP (Temporal Key Integrity Protocol)
encryption, which can be used in conjunction with a
RADIUS server.
spi (stateful packet inspection) firewall: a technology
that inspects incoming packets of information before
allowing them to enter the network.
firewall: Security measures that protect the
resources of a local network from intruders.
nat (network address translation): NAT technology
translates IP addresses of a local area network to a
different IP address for the Internet.
lan (local area network): The computers and
networking products that make up the network in
your home or office.
Linksys recommends using the Setup Wizard on the Setup CD-ROM for first-time installation of the Router. If you
do not wish to run the Setup Wizard, then use the instructions in this Guide to help you connect the Router and
configure it. These instructions should be all you need to get the most out of the Wireless-N Broadband Router.
Chapter 1: Introduction
Welcome
Wireless-N Broadband Router
What’s in this User Guide?
This user guide covers the steps for setting up and using the Wireless-N Broadband Router.
• Chapter 1: Introduction
This chapter describes the Router’s applications and this User Guide.
• Chapter 2: Planning Your Wireless Network
This chapter describes the basics of wireless networking.
• Chapter 3: Getting to Know the Wireless-N Broadband Router
This chapter describes the physical features of the Router.
• Chapter 4: Connecting the Wireless-N Broadband Router
This chapter instructs you on how to connect the Router to your network.
• Chapter 5: Configuring the Wireless-N Broadband Router
This chapter explains how to use the Web-based Utility to configure the settings on the Wireless-N Broadband
Router.
• Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the Wireless-N Broadband Router.
• Appendix B: Wireless Security
This appendix explains the risks of wireless networking and some solutions to reduce the risks.
• Appendix C: Upgrading Firmware
This appendix instructs you on how to upgrade the firmware on the Router should you need to do so.
• Appendix D: Windows Help
This appendix describes how you can use Windows Help for instructions about networking, such as installing
the TCP/IP protocol.
• Appendix E: Finding the MAC Address and IP Address for your Ethernet Adapter
This appendix describes how to find the MAC address for your computer’s Ethernet adapter so you can use
the MAC filtering and/or MAC address cloning feature of the Router.
• Appendix F: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
Chapter 1: Introduction
What’s in this User Guide?
Wireless-N Broadband Router
• Appendix G: Specifications
This appendix provides the technical specifications for the Router.
• Appendix H: Warranty Information
This appendix supplies the warranty information for the Router.
• Appendix I: Regulatory Information
This appendix supplies the regulatory information regarding the Router.
• Appendix J: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.
Chapter 1: Introduction
What’s in this User Guide?
Wireless-N Broadband Router
Chapter 2: Planning Your Wireless Network
Network Topology
A wireless local area network (WLAN) is exactly like a regular local area network (LAN), except that each
computer in the WLAN uses a wireless device to connect to the network. Computers in a WLAN share the same
frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the
same wireless network.
ssid (service set identifier): your wireless network’s name.
Ad-Hoc versus Infrastructure Mode
Unlike wired networks, wireless networks have two different modes in which they may be set up: infrastructure
and ad-hoc. An infrastructure configuration is a WLAN and wired LAN communicating to each other through an
access point. An ad-hoc configuration is wireless-equipped computers communicating directly with each other.
Choosing between these two modes depends on whether or not the wireless network needs to share data or
peripherals with a wired network or not.
If the computers on the wireless network need to be accessible by a wired network or need to share a peripheral,
such as a printer, with the wired network computers, the wireless network should be set up in Infrastructure
mode. The basis of Infrastructure mode centers around a wireless router or an access point, such as the
Wireless-N Broadband Router, which serves as the main point of communications in a wireless network. The
Router transmits data to PCs equipped with wireless network adapters, which can roam within a certain radial
range of the Router. You can arrange the Router and multiple access points to work in succession to extend the
roaming range, and you can set up your wireless network to communicate with your Ethernet hardware as well.
infrastructure: a wireless network that is bridged
to a wired network via an access point.
ad-hoc: a group of wireless devices
communicating directly to each other (peer-topeer) without the use of an access point.
If the wireless network is relatively small and needs to share resources only with the other computers on the
wireless network, then the Ad-Hoc mode can be used. Ad-Hoc mode allows computers equipped with wireless
transmitters and receivers to communicate directly with each other, eliminating the need for a wireless router or
access point. The drawback of this mode is that in Ad-Hoc mode, wireless-equipped computers are not able to
communicate with computers on a wired network. And, of course, communication between the wirelessequipped computers is limited by the distance and interference directly between them.
Network Layout
The Wireless-N Broadband Router has been specifically designed for use with your Wireless-N, Wireless-G, and
Wireless-B products. It will work with notebook adapters for your laptop computers, PCI adapters for your
Chapter 2: Planning Your Wireless Network
Network Topology
Wireless-N Broadband Router
desktop computers, and USB adapters for your USB connectivity needs. The Router can also communicate with
other devices, such as wireless print servers and bridges.
When you wish to connect your wireless network to your wired network, you can use the Router’s four local
Ethernet ports. To add more ports, connect one of the Router's local ports to any Linksys switch.
With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at
www.linksys.com for more information about products that work with the Wireless-N Broadband Router.
Chapter 2: Planning Your Wireless Network
Network Layout
Wireless-N Broadband Router
Chapter3:GettingtoKnowtheWireless-NBroadbandRouter
The Back Panel
The Router's ports, where the cables are connected, and Reset button are located on the back panel.
Figure 3-1: The Router’s Back Panel
INTERNET
The Internet port is where you will connect your broadband modem.
ETHERNET 1, 2, 3, 4 These ports (1, 2, 3, 4) connect the Router to your wired PCs and other Ethernet network
devices.
Reset Button
There are two ways to reset the Router's factory defaults. Either press the Reset button,
for approximately five seconds, or restore the defaults from the Administration - Factory
Defaults tab of the Router's Web-based Utility.
Power
The Power port is where you will connect the power adapter.
Chapter 3: Getting to Know the Wireless-N Broadband Router
The Back Panel
IMPORTANT: Resetting the Router will erase all of
your settings (Internet connection, wireless
security, and other settings) and replace them
with the factory defaults. Do not reset the Router
if you want to retain these settings.
Wireless-N Broadband Router
The Front Panel
The Router’s LEDs are located on the front panel.
Figure 3-2: The Router’s Front Panel
POWER
Green. The POWER LED lights up and will stay on while the Router is powered on.
ETHERNET 1, 2, 3, 4 Green. These numbered LEDs, corresponding with the numbered ports on the Router’s
back panel, serve two purposes. The LED lights up when the Router is connected to a
device through the corresponding port. If the LED is flashing, the Router is sending or
receiving data over that port.
INTERNET
Green. The INTERNET LED lights up when there is a connection through the Internet port.
WIRELESS
Green. The WIRELESS LED lights up when there is a wireless connection. If the LED is
flashing, the Router is sending or receiving data over the wireless network.
SECURITY
Green. The SECURITY LED indicates when wireless security is enabled.
The Top Panel
The Router has a button reserved for a future function.
Button
Figure 3-3: The Router’s Top Panel
Chapter 3: Getting to Know the Wireless-N Broadband Router
The Front Panel
Wireless-N Broadband Router
Chapter 4: Connecting the Wireless-N Broadband Router
Hardware Installation
1. Make sure that all of your hardware is powered off, including the broadband modem and PCs.
2. Connect your broadband modem’s Ethernet cable to the Router’s Internet port.
3. Connect one end of an Ethernet network cable to one of the numbered ports on the back of the Router.
Connect the other end to an Ethernet port on a network device, e.g., a PC, print server, or switch.
Repeat this step to connect more PCs or other network devices to the Router.
4. Power on the broadband modem.
Figure 4-1: Connect the Modem
5. Connect the included power adapter to the Router’s Power port, and then plug the power adapter into an
electrical outlet. The Power LED on the front panel will light up when the adapter is connected properly.
6. Power on your PC(s).
7. Locate an optimum location for the Router. The best place for the Router is usually at the center of your
wireless network, with line of sight to all of your wireless devices.
Proceed to “Chapter 5: Configuring the Wireless-N Broadband Router”.
Figure 4-2: Connect a PC
Figure 4-3: Connect the Power
IMPORTANT: Make sure you use the power
adapter that is supplied with the Router. Use of a
different power adapter could damage the Router.
Chapter 4: Connecting the Wireless-N Broadband Router
Hardware Installation
Wireless-N Broadband Router
Chapter 5: Configuring the Wireless-N Broadband Router
Overview
Linksys recommends using the Setup CD-ROM for first-time installation of the Router. If you do not wish to run
the Setup Wizard on the Setup CD-ROM, then you can use the Web-based Utility to configure the Router. For
advanced users, you may configure the Router’s advanced settings through the Web-based Utility.
This chapter will describe each web page on the Utility and each page’s key functions. The Utility can be
accessed via your web browser through use of a computer connected to the Router. For a basic network setup,
most users only have to use the following screens of the Utility:
• Basic Setup. On the Basic Setup screen, enter the Internet connection settings provided by your Internet
Service Provider (ISP). If you do not have this information, you can call your ISP to request the settings. When
you have the setup information, then you can configure the Router.
• Management. Click the Administration tab and then the Management tab. The Router’s default password is
admin. To secure the Router, change the Password from its default.
• Wireless. On the Basic Wireless Settings screen, set the basic configuration for your wireless network.
There are seven main tabs: Setup, Wireless, Security, Access Restrictions, Applications & Gaming, Administration,
and Status. Additional tabs will be available after you click one of the main tabs.
Setup
• Basic Setup. Enter the Internet connection and network settings on this screen.
• DDNS. Enable the Router’s Dynamic Domain Name System (DDNS) feature on this screen.
• MAC Address Clone. If you need to clone a MAC address onto the Router, use this screen.
• Advanced Routing. Use this screen to alter dynamic and static routing configurations.
Wireless
• Basic Wireless Settings. Enter the basic settings for your wireless network on this screen.
• Wireless Security. Enable and configure the security settings for your wireless network.
Chapter 5: Configuring the Wireless-N Broadband Router
Overview
Wireless-N Broadband Router
• Wireless MAC Filter. Wireless access can be filtered by using the MAC addresses of the wireless devices
transmitting within your network’s radius.
• Advanced Wireless Settings. For advanced users, you can alter data transmission settings on this screen.
Security
• Firewall. You can enable or disable the Router’s firewall, as well as various filters.
• VPN Passthrough. To enable or disable IPSec, L2TP, and/or PPTP Passthrough, use this screen.
Access Restrictions
Internet Access Policy. Create policies to control Internet access for your local network users.
Applications & Gaming
• Single Port Forwarding. This allows you to do port mapping and forwarding for a single service port.
• Port Range Forwarding. Set up public services or other specialized Internet applications on your network.
• Port Range Triggering. Configure the Router to watch outgoing data for specific port numbers.
• DMZ. Click this tab to allow one local user to be exposed to the Internet for use of special-purpose services.
• QoS. Quality of Service (QoS) ensures better service to high-priority types of network traffic.
Administration
• Management. On this screen, alter the Router’s password, access privileges, and UPnP settings. You can also
use this screen to back up and restore the Router’s configuration file.
• Log. If you want to view activity logs, click this tab.
• Diagnostics. If you want to run a ping or traceroute test, then use this screen.
• Factory Defaults. If you want to restore the Router’s factory defaults, then use this screen.
• Firmware Upgrade. Click this tab if you want to upgrade the Router’s firmware.
Chapter 5: Configuring the Wireless-N Broadband Router
Overview
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Wireless-N Broadband Router
Status
• Router. This screen provides status information about the Router.
• Local Network. This provides status information about the local network.
• Wireless Network. This provides status information about the wireless network.
How to Access the Web-based Utility
To access the Web-based Utility of the Router, launch Internet Explorer or Netscape Navigator, and enter the
Router’s default IP address, 192.168.1.1, in the Address field. Press the Enter key.
A screen will appear asking you for your User name and Password. Leave the User Name field blank. Enter admin
in the Password field. Then click the OK button.
Figure 5-1: Router Login
Make the necessary changes through the Utility. When you have finished making changes to a screen, click the
Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. For
information on a tab, click Help.
The Setup Tab - Basic Setup
The Basic Setup screen is the first screen you see when you access the Web-based Utility.
Internet Setup
The Internet Setup section configures the Router for your Internet connection type. This information can be
obtained from your ISP.
Internet Connection Type
The Router supports six connection types: Automatic Configuration - DHCP, Static IP, PPPoE, PPTP, Telstra Cable,
and L2TP. Each Basic Setup screen and available features will differ depending on what kind of connection type
you select.
Automatic Configuration - DHCP
By default, the Router’s Internet Connection Type is set to Automatic Configuration - DHCP, and it should be
used only if your ISP supports DHCP or you are connecting through a dynamic IP address.
Chapter 5: Configuring the Wireless-N Broadband Router
How to Access the Web-based Utility
Figure 5-2: Setup Tab - Basic Setup
(Automatic Configuration - DHCP)
NOTE: Some of these connection types may not
be available in your area.
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Wireless-N Broadband Router
Static IP
If you are required to use a permanent IP address, then select Static IP.
Internet IP Address. This is the IP address that the Router has, when seen from the Internet. Your ISP will
provide you with the IP address you need to specify here.
Subnet Mask. This is the Router’s Subnet Mask, as seen by external users on the Internet (including your
ISP). Your ISP will provide you with the Subnet Mask.
Figure 5-3: Static IP
Default Gateway. Your ISP will provide you with the Default Gateway Address.
DNS 1-3. Your ISP will provide you with at least one DNS (Domain Name System) Server IP Address.
PPPoE
Some DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet connections for
end-users. If you use a DSL line, check with your ISP to see if they use PPPoE. If they do, you will have to
enable it.
User Name and Password. Enter the User Name and Password provided by your ISP.
Service Name. If provided by your ISP, enter the Service Name.
static ip address: a fixed address
assigned to a computer or device
connected to a network.
subnet mask: an address code that
determines the size of the network
default gateway: a device that forwards
Internet traffic from your local area network
Connect on Demand and Max Idle Time. You can configure the Router to cut the Internet connection after it
has been inactive for a specific period of time (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. To use Connect on Demand, click the radio
button. If you want your Internet connection to remain on 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 access disconnects.
Keep Alive and Redial Period. This option keeps your Internet access connected indefinitely, even when it
sits idle. If you select this option, the Router will periodically check your Internet connection. If the connection
is down, then the Router will automatically re-establish the connection. To use this option, click the radio
button next to Keep Alive. The default Redial Period is 30 seconds.
Figure 5-4: PPPoE
Click the Save Settings button. Then click the Status tab, and click the Connect button.
IMPORTANT: For DSL users, if you need to enable PPPoE support, remember to remove any
PPPoE applications that are installed on your PCs.
Chapter 5: Configuring the Wireless-N Broadband Router
The Setup Tab - Basic Setup
pppoe: a type of broadband connection that
provides authentication (username and
password) in addition to data transport
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PPTP
Point-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe and Israel only.
Server IP Address. This is the IP address that the Router has, when seen from the Internet. Your ISP will
provide you with the IP address you need to specify here.
Subnet Mask. This is the Router’s Subnet Mask, as seen by external users on the Internet (including your
ISP). Your ISP will provide you with the Subnet Mask.
Figure 5-5: PPTP
Default Gateway. Your ISP will provide you with the Default Gateway Address.
User Name and Password. Enter the User Name and Password provided by your ISP.
Connect on Demand and Max Idle Time. You can configure the Router to cut the Internet connection after it
has been inactive for a specific period of time (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. To use Connect on Demand, click the radio
button. If you want your Internet connection to remain on 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 access disconnects.
Keep Alive and Redial Period. This option keeps your Internet access connected indefinitely, even when it
sits idle. If you select this option, the Router will periodically check your Internet connection. If the connection
is down, then the Router will automatically re-establish the connection. To use this option, click the radio
button next to Keep Alive. The default Redial Period is 30 seconds.
Click the Save Settings button. Then click the Status tab, and click the Connect button.
Telstra Cable
Telstra Cable is a service used in Australia only. Check with your ISP for the necessary setup information.
Server IP Address. This is the IP address that the Router has, when seen from the Internet. Your ISP will
provide you with the IP address you need to specify here.
Figure 5-6: Telstra Cable
User Name and Password. Enter the User Name and Password provided by your ISP.
Click the Save Settings button. Then click the Status tab, and click the Connect button.
Chapter 5: Configuring the Wireless-N Broadband Router
The Setup Tab - Basic Setup
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L2TP
Layer 2 Tunneling Protocol (L2TP) is a service that tunnels Point-to-Point Protocol (PPP) across the Internet. It
is used mostly in European countries. Check with your ISP for the necessary setup information.
Server IP Address. This is the IP address that the Router has, when seen from the Internet. Your ISP will
provide you with the IP address you need to specify here.
Figure 5-7: L2TP
User Name and Password. Enter the User Name and Password provided by your ISP.
Connect on Demand and Max Idle Time. You can configure the Router to cut the Internet connection after it
has been inactive for a specific period of time (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. To use Connect on Demand, click the radio
button. If you want your Internet connection to remain on 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 access disconnects.
Keep Alive and Redial Period. This option keeps your Internet access connected indefinitely, even when it
sits idle. If you select this option, the Router will periodically check your Internet connection. If the connection
is down, then the Router will automatically re-establish the connection. To use this option, click the radio
button next to Keep Alive. The default Redial Period is 30 seconds.
Click the Save Settings button. Then click the Status tab, and click the Connect button.
Optional Settings
Some of these settings may be required by your ISP. Verify with your ISP before making any changes.
Host Name and Domain Name. Some ISPs require these names as identification. You may have to check with
your ISP to see if your broadband Internet service has been configured with a host and domain name. In most
cases, leaving these fields blank will work.
MTU. The MTU (Maximum Transmission Unit) setting specifies the largest packet size permitted for network
transmission. To manually set a value, select Manual and enter the value desired in the Size field. You should
leave this value in the 1200 to 1500 range. Most DSL users should use the value 1492. The default is Auto, which
allows the Router to select the best MTU for your Internet connection.
Chapter 5: Configuring the Wireless-N Broadband Router
The Setup Tab - Basic Setup
packet: a unit of data sent over a network.
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Wireless-N Broadband Router
Network Setup
The Network Setup section allows you to change the Router’s local network settings.
Router IP
The Router’s Local IP Address and Subnet Mask are shown here. In most cases, you should keep the defaults.
Local IP Address. The default value is 192.168.1.1.
Subnet Mask. The default value is 255.255.255.0.
DHCP Server Setting
The Router can be used as a Dynamic Host Configuration Protocol (DHCP) server for your network. A DHCP server
automatically assigns an IP address to each computer on your network. Unless you already have one, it is highly
recommended that you leave the Router enabled as a DHCP server.
DHCP Server. DHCP is enabled by factory default. If you already have a DHCP server on your network, set the
Router’s DHCP option to Disabled. If you disable DHCP, remember to assign a static IP address to the Router.
Start IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. Because the default
IP address for the Router is 192.168.1.1, the Start IP Address must be 192.168.1. 2 or greater, but smaller than
192.168.1.254. The default Start IP Address is 192.168.1.100.
Maximum Number of Users (Optional). Enter the maximum number of PCs that you want the DHCP server to
assign IP addresses to. This number cannot be greater than 253. The default is 50.
Client Lease Time. The Client Lease Time is the amount of time a network user will be allowed connection to the
Router with their current dynamic IP address. Enter the amount of time, in minutes, that the user will be “leased”
this dynamic IP address. After the dynamic IP address has expired, the user will be automatically assigned a new
dynamic IP address. The default is 0 minutes, which means one day.
dynamic ip address: a temporary IP
address assigned by a DHCP server.
Static DNS 1-3. The Domain Name System (DNS) is how the Internet translates domain or website names into
Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. You can enter up to
three DNS Server IP Addresses here. The Router will use these for quicker access to functioning DNS servers.
WINS. The Windows Internet Naming Service (WINS) converts NetBIOS names to IP addresses. If you use a WINS
server, enter that server’s IP address here. Otherwise, leave this field blank.
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DHCP Reservation. Click the DHCP Reservation button if you want to assign a fixed local IP address to a MAC
address. You will see a list of DHCP clients with the following information: Client Name, Interface, IP Address, and
MAC Address. Click the Select checkbox to reserve a client’s IP address. Then click the Add Clients button.
If you want to manually assign an IP address, enter the client’s name in the Enter Client Name field. Enter the IP
address you want it to have in the Assign IP Address field. Enter its MAC Address in the To This MAC Address field.
Click the Add button.
A list of DHCP clients and their fixed local IP addresses will be displayed at the bottom of the screen. If you want
to remove a client from this list, click the Remove button.
When you have finished your changes, click the Save Settings button to save your changes. Click the Cancel
Changes button to cancel your changes. To view the most up-to-date information, click the Refresh button. To
exit this screen, click the Close button.
Time Setting
Time Zone. Select the time zone in which your network functions. If you want the Router to automatically adjust
the clock for daylight savings, then select the checkbox.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Chapter 5: Configuring the Wireless-N Broadband Router
The Setup Tab - Basic Setup
Figure 5-8: DHCP Reservation
NOTE: To test your settings, connect to the
Internet now.
16
Wireless-N Broadband Router
The Setup Tab - 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 you can use this feature, you need to sign up for DDNS service at one of two DDNS service providers,
DynDNS.org or TZO.com. If you do not want to use this feature, keep the default setting, Disable.
DDNS
DDNS Service
If your DDNS service is provided by DynDNS.org, then select DynDNS.org from the drop-down menu. If your
DDNS service is provided by TZO, then select TZO.com. The features available on the DDNS screen will vary,
depending on which DDNS service provider you use.
DynDNS.org
Figure 5-9: Setup Tab - DDNS (DynDNS.org)
ddns: allows the hosting of a website, FTP server, or
e-mail server with a fixed domain name (e.g.,
www.xyz.com) and a dynamic IP address.
Username, Password, and Host Name. Enter the settings of the account you set up with DynDNS.org.
System. Select the DynDNS service you use: Dynamic, Static, or Custom.
Mail Exchange (Optional). Enter the address of your mail exchange server, so e-mails to your DynDNS
address go to your mail server.
Backup MX. This feature allows the mail exchange server to be a backup. To enable this feature, keep the
default, Enabled. To disable the feature, select Disabled. If you are not sure which setting to select, keep the
default, Enabled.
WildCard. This setting enables or disables wildcards for your host. For example, if your DDNS address is
myplace.dyndns.org and you enable wildcards, then x.myplace.dyndns.org will work as well (x is the
wildcard). To enable wildcards, keep the default, Enabled. To disable wildcards, select Disabled. If you are
not sure which setting to select, keep the default, Enabled.
Status. The status of the DDNS service connection is displayed here.
Update. To manually trigger an update, click this button.
Chapter 5: Configuring the Wireless-N Broadband Router
The Setup Tab - DDNS
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Wireless-N Broadband Router
TZO.com
E-mail Address, TZO Password, and Domain Name. Enter the settings of the account you set up with TZO.
Internet IP Address. The Router’s Internet IP address is displayed here. Because it is dynamic, it will change.
Status. The status of the DDNS service connection is displayed here.
Update. To manually trigger an update, click this button.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Figure 5-10: Setup Tab - DDNS (TZO.com)
Chapter 5: Configuring the Wireless-N Broadband Router
The Setup Tab - DDNS
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The Setup Tab - MAC Address Clone
A MAC address is a 12-digit code assigned to a unique piece of hardware for identification, like a social security
number. Some ISPs will require you to register a MAC address in order to access the Internet. If you do not wish
to re-register the MAC address with your ISP, you may assign the MAC address you have currently registered with
your ISP to the Router with the MAC Address Clone feature.
MAC Address Clone
To use MAC address cloning, select Enabled. Otherwise, keep the default, Disabled.
MAC Address. Enter the MAC Address registered with your ISP.
Figure 5-11: Setup Tab - MAC Clone
Clone My PC’s MAC. If you want to clone the MAC address of the PC you are currently using to configure the
Router, then click this button. The Router will automatically detect your PC’s MAC address, so you do NOT have to
call your ISP to change the registered MAC address to the Router’s MAC address. It is recommended that the PC
registered with the ISP is used to open the MAC Address Clone screen.
mac address: the unique address that a
manufacturer assigns to each networking device.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Chapter 5: Configuring the Wireless-N Broadband Router
The Setup Tab - MAC Address Clone
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The Setup Tab - Advanced Routing
The Advanced Routing screen allows you to configure the dynamic and static routing settings.
Advanced Routing
NAT
If this Router is hosting your network’s connection to the Internet, select Enabled. If another Router exists on your
network, select Disabled. When the NAT setting is disabled, dynamic routing will be enabled.
Dynamic Routing
This feature enables the Router to automatically adjust to physical changes in the network’s layout and exchange
routing tables with the other router(s). The Router determines the network packets’ route based on the fewest
number of hops between the source and the destination. To use dynamic routing, select Enabled. Otherwise, select
Disabled. When the NAT setting is disabled, dynamic routing will be enabled.
Figure 5-12: Setup Tab - Advanced Routing
Static Routing
A static route is a pre-determined pathway that network information must travel to reach a specific host or
network. Use this feature to set up a static route between the Router and another network (you can have up to 20
static routes). To create a static route, alter the following settings:
Route Entries. Select the number of the static route from the drop-down menu.
Enter Route Name. Enter a name for the static route, using a maximum of 25 alphanumeric characters.
Destination LAN IP. The Destination LAN IP Address is the address of the remote network or host to which
you want to assign a static route. Enter the IP address of the host for which you wish to create a static route.
Subnet Mask. The Subnet Mask determines which portion of a Destination IP address is the network portion,
and which portion is the host portion.
Default Gateway. This is the IP address of the gateway device that allows for contact between the Router and
the remote network or host.
Interface. Select LAN & Wireless or WAN (Internet), depending on the location of the final destination.
Delete This Entry. To delete a route, select its number from the drop-down menu, and click this button.
Chapter 5: Configuring the Wireless-N Broadband Router
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Show Routing Table. Click the Show Routing Table button to open a screen displaying how data is routed
through your local network. For each route, the Destination LAN IP address, Subnet Mask, Gateway, and Interface
are displayed. Click the Refresh button to update the information. Click the Close button to exit this screen.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Figure 5-13: Routing Table
Chapter 5: Configuring the Wireless-N Broadband Router
The Setup Tab - Advanced Routing
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The Wireless Tab - Basic Wireless Settings
The basic settings for Manual or Wi-Fi Protected Setup wireless networking are set on this screen.
Basic Wireless Settings
Manual Wireless Configuration. Select Manual to individually set the Basic Wireless Settings.
Network Mode. From this drop-down menu, you can select the wireless standards running on your network. If
you have Wireless-N, Wireless-G, and Wireless-B devices in your network, keep the default setting, Mixed. If you
have only Wireless-N devices, select Wireless-N Only. If you have only Wireless-G devices, select Wireless-G
Only. If you have only Wireless-B devices, select Wireless-B Only. If you do not have any wireless devices in your
network, select Disable.
Network Name (SSID). The SSID is the network name shared among all points in a wireless network. The SSID
must be identical for all devices in the wireless network. It is case-sensitive and must not exceed 32 characters
(use any of the characters on the keyboard). Make sure this setting is the same for all points in your wireless
network. For added security, you should change the default SSID (linksys) to a unique name.
Figure 5-14: Wireless Tab - Manual Wireless Settings
NOTE: Screen may vary from the one displayed
above.
Radio Band. For best performance in a network using Wireless-N, Wireless-G and Wireless-B devices, keep the
default, Wide - 40MHz Channel. For Wireless-G and Wireless-B networking only, select Standard - 20MHz
Channel. If you are not sure which radio band to select, keep the default, Auto.
Wide Channel. If you selected Wide - 40MHz Channel for the Radio Band setting, then this setting will be
available for your primary Wireless-N channel. Select any channel from the drop-down menu.
Standard Channel. Select the channel for Wireless-N, Wireless-G, and Wireless-B networking. If you selected
Wide – 40MHz Channel for the Radio Band setting, then the Standard Channel will be a secondary channel for
Wireless-N. If you are not sure which channel to select, keep the default, Auto.
SSID Broadcast. When wireless clients survey the local area for wireless networks to associate with, they will
detect the SSID broadcast by the Router. To broadcast the Router's SSID, keep the default setting, Enabled. If you
do not want to broadcast the Router's SSID, then select Disabled.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Chapter 5: Configuring the Wireless-N Broadband Router
The Wireless Tab - Basic Wireless Settings
NOTE: If you select Wide - 40MHz Channel for the
Radio Band setting, then Wireless-N can use two
channels: a primary one (Wide Channel) and a
secondary one (Standard Channel). This will
enhance Wireless-N performance.
22
Wireless-N Broadband Router
Wi-Fi Protected Wireless Configuration. Select Wi-Fi Protected Setup to enable this feature. There are three
options available:
If the client device has a Wi-Fi Protected Setup button, click or press that button. You can then select the WiFi Protected Setup button on this screen, or press the Wi-Fi Protected Setup button on the top of the Router.
You will need to follow the client device’s user’s guide for further information.
or
If the Client device has a Wi-WFi Protected Setup PIN number, enter the number in the blank field in Option 2
and then select Register.
or
If the client device requests the Router’s PIN number, enter the number displayed in Option 3. A new number
can be generated by
• Rebooting, or
• by selecting the Administration Tab, choosing Factory Defaults and then selecting Restore Wireless
Settings, or
Figure 5-15: Wireless Tab - Wi-Fi Protected Setup
• by selecting the Administration Tab, choosing Factory Defaults and then selecting Restore All Settings.
The new PIN number will display on this screen (Basic Wireless Settings), in Option 3.
Network Name (SSID). The SSID is the shared network name and must be identical for all points in a wireless
network. It is case-sensitive. Make sure this setting is the same for all points in your network.
Security. Displays the type of security setting being used for the wireless network. To change this setting, refer
to the Wireless Tab - Wireless Security section of this chapter.
NOTE: Wi-Fi Protected Setup will not work with
Wired Equivalent Privacy (WEP). If even one device
on your network supports only WEP, then you
cannot use Wi-Fi Protected Setup.
Encryption. Displays the current encryption method. To change this setting, refer to the Wireless Tab - Wireless
Security section of this chapter.
Passphrase. Displays the Passphrase shared by the Router and other network devices. To change this setting,
refer to the Wireless Tab - Wireless Security section of this chapter.
Chapter 5: Configuring the Wireless-N Broadband Router
The Wireless Tab - Basic Wireless Settings
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Wireless-N Broadband Router
The Wireless Tab - Wireless Security
These settings configure the security of your wireless network. There are six wireless security modes supported
by the Router: WPA-Personal, WPA2-Personal, WPA-Enterprise, WPA2-Enterprise, RADIUS, and WEP. (WPA stands
for Wi-Fi Protected Access, which is a security standard stronger than WEP encryption. WEP stands for Wired
Equivalent Privacy, while RADIUS stands for Remote Authentication Dial-In User Service.) For details on
configuring wireless security for the Router, turn to “Appendix B: Wireless Security.” If you do not want to use
wireless security, select Disabled.
Wireless Security
Security Mode. Select the mode you want to use: WPA-Personal, WPA2-Personal, WPA-Enterprise, WPA2Enterprise, RADIUS, or WEP. WPA2 is a more advanced, more secure version of WPA.
Figure 5-16: Wireless Tab - Wireless Security
(WPA-Personal)
Follow the instructions for the security method you want to use.
WPA-Personal
Encryption. Select the algorithm you want to use, TKIP or AES. (AES is a stronger encryption method than TKIP.)
Passphrase. Enter the Passphrase shared by the Router and your other network devices. It must have 8-63
characters.
Key Renewal. Enter the Key Renewal period, which tells the Router how often it should change encryption keys.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
WPA2-Personal
Encryption. Select the algorithm(s) you want to use, AES or TKIP or AES. (AES is a stronger encryption method
than TKIP.)
Passphrase. Enter the Passphrase shared by the Router and your other network devices. It must have 8-63
characters.
Key Renewal. Enter the Key Renewal period, which tells the Router how often it should change encryption keys.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Chapter 5: Configuring the Wireless-N Broadband Router
The Wireless Tab - Wireless Security
Figure 5-17: Wireless Security - WPA2-Personal
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Wireless-N Broadband Router
WPA-Enterprise
This option features WPA used in coordination with a RADIUS server. (This should only be used when a RADIUS
server is connected to the Router.)
Encryption. Select the algorithm(s) you want to use, TKIP or AES. (AES is a stronger encryption method than
TKIP.)
RADIUS Server. Enter the IP address of your RADIUS server.
RADIUS Port. Enter the port number of your RADIUS server.
Shared Secret. Enter the key shared by the Router and RADIUS server.
Figure 5-18: Wireless Security - WPA-Enterprise
Key Renewal. Enter the Key Renewal period, which tells the Router how often it should change encryption keys.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
WPA2-Enterprise
This option features WPA2 used in coordination with a RADIUS server. (This should only be used when a RADIUS
server is connected to the Router.)
Encryption. Select the algorithm(s) you want to use, AES or TKIP or AES. (AES is a stronger encryption method
than TKIP.)
RADIUS Server. Enter the IP address of your RADIUS server.
RADIUS Port. Enter the port number of your RADIUS server.
Shared Secret. Enter the key shared by the Router and RADIUS server.
Figure 5-19: Wireless Security - WPA2-Enterprise
Key Renewal. Enter the Key Renewal period, which tells the Router how often it should change encryption keys.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Chapter 5: Configuring the Wireless-N Broadband Router
The Wireless Tab - Wireless Security
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Wireless-N Broadband Router
RADIUS
This option features WEP used in coordination with a RADIUS server. (This should only be used when a RADIUS
server is connected to the Router.)
RADIUS Server. Enter the IP address of your RADIUS server.
RADIUS Port. Enter the port number of your RADIUS server.
Shared Key. Enter the key shared by the Router and RADIUS server.
Encryption. Select the appropriate level of encryption, 40/64-bit (10 hex digits) or 128-bit (26 hex digits),
which is stronger encryption than 40/64 bit encryption.
Passphrase. To automatically generate keys, enter your passphrase. Then click the Generate button.
Key 1-4. If you want to manually enter the WEP keys, then enter them in the Key 1-4 fields.
Figure 5-20: Wireless Security - RADIUS
TX Key. To indicate which WEP key to use, select a transmit key number.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
WEP
WEP is a basic encryption method offering two levels of encryption; 128-bit is stronger than 40/64-bit encryption.
WEP cannot be used with Wi-Fi Protected Setup.
Encryption. Select the appropriate level of encryption, 40/64-bit (10 hex digits) or 128-bit (26 hex digits).
Passphrase. To automatically generate keys, enter your passphrase. Then click the Generate button.
Key 1-4. If you want to manually enter the WEP keys, then enter them in the Key 1-4 fields.
TX Key. To indicate which WEP key to use, select a transmit key number.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Chapter 5: Configuring the Wireless-N Broadband Router
The Wireless Tab - Wireless Security
Figure 5-21: Wireless Security - WEP
26
Wireless-N Broadband Router
The Wireless Tab - Wireless MAC Filter
Wireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your
network’s radius.
Wireless MAC Filter
To filter wireless users by MAC Address, either permitting or blocking access, click Enabled. If you do not wish to
filter users by MAC Address, select Disabled.
Access Restrictions
Prevent. Click this button to block wireless access from the devices listed on this screen.
Permit. Click this button to allow wireless access by the devices listed on this screen.
MAC Address Filter List
Click the Wireless Client List button to display the Wireless Client List. It shows computers and other devices on
the wireless network. The list can be sorted by Client Name, Interface, IP Address, MAC Address, and Status. Click
the Save to MAC Address Filter List checkbox for any device you want to add to the MAC Address Filter List.
Then click the Add button. To retrieve the most up-to-date information, click the Refresh button. To exit this
screen and return to the Wireless MAC Filter screen, click the Close button.
Then click the Enable MAC Filter checkbox for any device you want to add to the MAC Address Filter List. To
update the information on this list, click the Refresh button. When you have finished making changes to the
Wireless Client MAC List screen, click the Update Filter List button to save the changes. Click the Close button
to return to the Wireless MAC Filter screen.
Figure 5-22: Wireless Tab - Wireless MAC Filter
When you have finished making changes to the MAC Address Filter List screen, click the Save Settings button to
save the changes, or click the Cancel Changes button to undo your changes.
MAC 01-50. Enter the MAC addresses of the devices whose wireless access you want to block or allow.
When you have finished making changes to the Wireless MAC Filter screen, click the Save Settings button to
save the changes, or click the Cancel Changes button to undo your changes. For more information, click Help.
Figure 5-23: Wireless Client List
Chapter 5: Configuring the Wireless-N Broadband Router
The Wireless Tab - Wireless MAC Filter
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Wireless-N Broadband Router
The Wireless Tab - Advanced Wireless Settings
This tab is used to set up the Router’s advanced wireless functions. These settings should only be adjusted by an
expert administrator as incorrect settings can reduce wireless performance.
Advanced Wireless
AP Isolation. This isolates all wireless clients and wireless devices on your network from each other. Wireless
devices will be able to communicate with the Router but not with each other. To use this function, click Enabled.
AP Isolation is disabled by default.
Frame Burst. This should provide your network with greater performance, depending on the manufacturer of
your wireless products. To use this function, keep the default, Enabled.
Authentication Type. The default is set to Auto, which allows either Open System or Shared Key authentication
to be used. Select Shared Key if you only want to use Shared Key authentication (the sender and recipient use a
WEP key for authentication).
Figure 5-24: Wireless Tab - Advanced Wireless Settings
Basic Rate. The Basic Rate setting is not actually one rate of transmission but a series of rates at which the
Router can transmit. The Router will advertise its Basic Rate to the other wireless devices in your network, so
they know which rates will be used. The Router will also advertise that it will automatically select the best rate
for transmission. The default setting is Default, when the Router can transmit at all standard wireless rates
(1-2Mbps, 5.5Mbps, 11Mbps, 18Mbps, and 24Mbps). Other options are 1-2Mbps, for use with older wireless
technology, and All, when the Router can transmit at all wireless rates.
Transmission Rate. The rate of data transmission should be set depending on the speed of your wireless
network. You can select from a range of transmission speeds, or you can select Auto to have the Router
automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will
negotiate the best possible connection speed between the Router and a wireless client. The default setting is
Auto.
N Transmission Rate. The rate of data transmission should be set depending on the speed of your Wireless-N
networking. You can select from a range of transmission speeds, or you can select Auto to have the Router
automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will
negotiate the best possible connection speed between the Router and a wireless client. The default setting is
Auto.
CTS Protection Mode. CTS (Clear-To-Send) Protection Mode’s default setting is Auto. The Router will
automatically use CTS Protection Mode when your Wireless-N and Wireless-G products are experiencing severe
problems and are not able to transmit to the Router in an environment with heavy 802.11b traffic. This function
Chapter 5: Configuring the Wireless-N Broadband Router
The Wireless Tab - Advanced Wireless Settings
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Wireless-N Broadband Router
boosts the Router’s ability to catch all Wireless-N and Wireless-G transmissions but will severely decrease
performance.
Beacon Interval. Enter a value between 20-1000 milliseconds. The Beacon Interval value indicates the
frequency interval of the beacon. A beacon is a packet broadcast by the Router to synchronize the wireless
network. The default value is 100.
DTIM Interval. This value, between 1 and 255, indicates the interval of the Delivery Traffic Indication Message
(DTIM). A DTIM field is a countdown field informing clients of the next window for listening to broadcast and
multicast messages. When the Router has buffered broadcast or multicast messages for associated clients, it
sends the next DTIM with a DTIM Interval value. Its clients hear the beacons and awaken to receive the broadcast
and multicast messages. The default value is 1.
Fragmentation Threshold. This value specifies the maximum size for a packet before data is fragmented into
multiple packets. If you experience a high packet error rate, you may slightly increase the Fragmentation
Threshold. Setting the Fragmentation Threshold too low may result in poor network performance. Only minor
reduction of the default value is recommended. In most cases, it should remain at its default value of 2346.
RTS Threshold. Should you encounter inconsistent data flow, only minor reduction of the default value, 2346, is
recommended. If a network packet is smaller than the preset RTS threshold size, the RTS/CTS mechanism will
not be enabled. The Router sends Request to Send (RTS) frames to a particular receiving station and negotiates
the sending of a data frame. After receiving an RTS, the wireless station responds with a Clear to Send (CTS)
frame to acknowledge the right to begin transmission. In most cases, keep its default value of 2346.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Chapter 5: Configuring the Wireless-N Broadband Router
The Wireless Tab - Advanced Wireless Settings
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Wireless-N Broadband Router
The Security Tab - Firewall
The Firewall screen offers a firewall and filters that block specific Internet data types.
Firewall
Firewall Protection. A firewall enhances network security and uses Stateful Packet Inspection (SPI) for more
detailed review of data packets entering your network. Select Enabled to use a firewall, or Disabled to disable it.
Internet Filter
Filter Anonymous Internet Requests. When enabled, this feature keeps your network from being “pinged,” or
detected, by other Internet users. It also hides your network ports. Both make it more difficult for outside users to
enter your network. This filter is enabled by default. Select Disabled to allow anonymous Internet requests.
Figure 5-25: Security Tab - Firewall
Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time. If
multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate
computers. Select Enabled to filter multicasting, or Disabled to disable this feature.
Filter Internet NAT Redirection. This feature uses port forwarding to block access to local servers from local
networked computers. Select Enabled to filter Internet NAT redirection, or Disabled to disable this feature.
Filter IDENT (Port 113). This feature keeps port 113 from being scanned by devices outside of your local
network. Select Enabled to filter port 113, or Disabled to disable this feature.
Web Filter
Proxy. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will disable
access to any WAN proxy servers. To enable proxy filtering, click the checkbox.
Java. Java is a programming language for websites. If you deny Java, you run the risk of not having access to
Internet sites created using this programming language. To enable Java filtering, click the checkbox.
ActiveX. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having
access to Internet sites created using this programming language. To enable ActiveX filtering, click the checkbox.
Cookies. A cookie is data stored on your computer and used by Internet sites when you interact with them. To
enable cookie filtering, click the checkbox.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
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The Security Tab - VPN Passthrough
The VPN Passthrough screen allows you to allow VPN tunnels using IPSec, L2TP, or PPTP protocols to pass
through the Router.
VPN Passthrough
IPSec Passthrough. IPSec (Internet Protocol Security) is a suite of protocols used to implement secure exchange
of packets at the IP layer. To allow IPSec Passthrough, click the Enabled button. To disable IPSec Passthrough,
click the Disabled button.
Figure 5-26: VPN Passthrough
L2TP Passthrough. Layer 2 Tunneling Protocol is the method used to enable Point-to-Point sessions via the
Internet on the Layer 2 level. To allow L2TP tunnels to pass through the Router, click the Enabled button. To
disable L2TP Passthrough, click the Disabled button.
PPTP Passthrough. PPTP (Point-to-Point Tunneling Protocol) Passthrough allows the Point-to-Point (PPP) to be
tunneled through an IP network. To allow PPTP Passthrough, click the Enabled button. To disable PPTP
Passthrough, click the Disabled button.
vpn: a security measure to protect data as it leaves
one network and goes to another over the Internet.
ipsec: a VPN protocol used to implement secure
exchange of packets at the IP layer.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
pptp: a VPN protocol that allows the Point to Point
Protocol (PPP) to be tunneled through an IP network.
This protocol is also used as a type of broadband
connection in Europe.
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The Access Restrictions Tab - Internet Access Policy
The Internet Access Policy screen allows you to block or allow specific kinds of Internet usage and traffic, such as
Internet access, designated services, websites, and inbound traffic during specific days and times.
Internet Access Policy
Access Policy. Access can be managed by a policy. Use the settings on this screen to establish an access policy
(after the Save Settings button is clicked). Selecting a policy from the drop-down menu will display that policy’s
settings. To delete a policy, select that policy’s number and click the Delete This Policy button. To view all the
policies, click the Summary button.
On the Summary screen, the policies are listed with the following information: No., Policy Name, Access, Days,
Time, and status (Enabled). To enable a policy, click the Enabled checkbox. To delete a policy, click its Delete
button. Click the Save Settings button to save your changes, or click the Cancel Changes button to cancel your
changes. To return to the Internet Access Policy screen, click the Close button.
Status. Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu,
and click the radio button beside Enabled.
To create a policy:
1. Select a number from the Access Policy drop-down menu.
2. Enter a Policy Name in the field provided.
Figure 5-27: Access Restrictions Tab - Internet Access
Policy
3. To enable this policy, click the radio button beside Enabled.
4. Click the Edit List button to select which PCs will be affected by the policy. The List of PCs screen will appear.
You can select a PC by MAC address or IP address. You can also enter a range of IP addresses if you want this
policy to affect a group of PCs. After making your changes, click the Save Settings button to apply your
changes or Cancel Changes to cancel your changes.
5. Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access
for the PCs you listed on the List of PCs screen.
6. Decide which days and what times you want this policy to be enforced. Select the individual days during
which the policy will be in effect, or select Everyday. Then enter a range of hours and minutes during which
the policy will be in effect, or select 24 Hours.
Figure 5-28: Summary
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7. You can block websites with specific URL addresses. Enter each URL in a separate field next to Website
Blocking by URL Address.
8. You can also block websites using specific keywords. Enter each keyword in a separate field next to Website
Blocking by Keyword.
9. You can filter access to various services accessed over the Internet, such as FTP or telnet. (You can block up
to three applications per policy.)
From the Applications list, select the application you want to block. Then click the >> button to move it to the
Blocked List. To remove an application from the Blocked List, select it and click the << button.
10. If the application you want to block is not listed or you want to edit a service’s settings, enter the application’s
name in the Application Name field. Enter its range in the Port Range fields. Select its protocol from the
Protocol drop-down menu. Then click the Add button.
Figure 5-29: List of PCs
To modify a service, select it from the Application list. Change its name, port range, and/or protocol setting.
Then click the Modify button.
To delete a service, select it from the Application list. Then click the Delete button.
11. Click the Save Settings button to save the policy’s settings. To cancel the policy’s settings, click the Cancel
Changes button.
For more information, click Help.
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The Applications & Gaming Tab - Single Port Forwarding
When you click the Applications & Gaming tab, you will see the Single Port Forwarding screen. You can customize
port services for common applications on this screen.
When users send these types of requests to your network via the Internet, the Router will forward those requests
to the appropriate servers (computers). Before using forwarding, you should assign static IP addresses to the
designated servers (use the DHCP Reservation feature on the Basic Setup screen).
Single Port Forwarding
Common applications are available for the first five entries. Select the appropriate application. Then enter the IP
address of the server that should receive these requests. Click the Enabled checkbox to activate this entry.
For additional applications, complete the following fields:
Application Name. Enter the name of the application.
External Port. Enter the external port number used by the server or Internet application. Check with the Internet
application documentation for more information.
Figure 5-30: Applications & Gaming Tab Single Port Forwarding
Internal Port. Enter the internal port number used by the server or Internet application. Check with the Internet
application documentation for more information.
Protocol. Select the protocol TCP or UDP, or select Both.
To IP Address. Enter the IP address of the server that should receive the requests. To find the IP address, go to
“Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter.” If you assigned a static IP
address to the server, then you can click the DHCP Reservation button on the Basic Setup screen to look up its
static IP address.
tcp: a network protocol for transmitting data that
requires acknowledgement from the recipient of
data sent.
udp: a network protocol for transmitting data
that does not require acknowledgement from
the recipient of the data that is sent.
Enabled. Click the Enabled checkbox to enable the applications you have defined. This is disabled (unchecked)
by default.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
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The Applications & Gaming Tab - Port Range Forwarding
Port range forwarding sets up public services on your network, such as web servers, ftp servers, e-mail servers,
or other specialized Internet applications. (Specialized Internet applications are any applications that use Internet
access to perform functions such as videoconferencing or online gaming. Some Internet applications may not
require any forwarding.)
When users send these types of requests to your network via the Internet, the Router will forward those requests
to the appropriate servers (computers). Before using forwarding, you should assign static IP addresses to the
designated servers (use the DHCP Reservation feature on the Basic Setup screen).
If you need to forward all ports to one PC, click the DMZ tab.
Port Range Forwarding
To add an application, complete the following fields:
Figure 5-31: Applications & Gaming Tab Port Range Forwarding
Application Name. Enter the name of the application.
Start ~ End Port. Enter the number or range of port(s) used by the server or Internet application. Check with the
Internet application documentation for more information.
Protocol. Select the protocol TCP or UDP, or select Both.
To IP Address. Enter the IP address of the server that you want the Internet users to be able to access. To find
the IP address, go to “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter.” If you
assigned a static IP address to the server, then you can click the DHCP Reservation button on the Basic Setup
screen to look up its static IP address.
Enabled. Click the Enabled checkbox to enable the applications you have defined. This is disabled (unchecked)
by default.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
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The Applications & Gaming Tab - Port Range Triggering
This screen instructs the Router to watch outgoing data for specific port numbers. The IP address of the computer
that sends the matching data is remembered by the Router, so that when the requested data returns through the
Router, the data is sent to the proper computer by way of IP address and port mapping rules.
Port Range Triggering
To add an application, complete the following fields:
Application Name. Enter the name of the application.
Triggered Range. Enter the starting and ending port numbers of the triggered port range. Check with the Internet
application documentation for the port number(s) needed.
Forwarded Range. Enter the starting and ending port numbers of the forwarded port range. Check with the
Internet application documentation for the port number(s) needed.
Figure 5-32: Applications & Gaming Tab Port Range Triggering
Enabled. Click the Enabled checkbox to enable the applications you have defined. This is disabled (unchecked)
by default.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
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The Applications & Gaming Tab - DMZ
The DMZ screen allows one local user to be exposed to the Internet for use of a special-purpose service such as
Internet gaming and videoconferencing. DMZ hosting forwards all the ports at the same time to one PC. The Port
Range Forwarding is more secure because it only opens the ports you want to have opened, while DMZ hosting
opens all the ports of one computer, exposing the computer to the Internet.
Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static
IP address assigned to it because its IP address may change when using the DHCP function.
DMZ
Figure 5-33: Applications & Gaming Tab - DMZ
To use this feature, select Enabled. To disable DMZ hosting, select Disabled.
Source IP Address. If you want any IP address to be the source, select Any IP Address. If you want to specify an
IP address or range of IP addresses as the designated source, click the second radio button, and enter the IP
address(es) in the fields provided.
Destination. If you want to specify the DMZ host by IP address, select IP Address and complete the IP address in
the field provided. If you want to specify the DMZ host by MAC address, select MAC Address and enter the MAC
address in the field provided. To retrieve this information, click the DHCP Client Table button.
The DHCP Client Table lists computers and other devices that have been assigned IP addresses by the Router. The
list can be sorted by Client Name, Interface, IP Address, MAC Address, and Expired Time (how much time is left
for the current IP address). To select a DHCP client, click the Select button. To retrieve the most up-to-date
information, click the Refresh button. To exit this screen and return to the DMZ screen, click the Close button.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Figure 5-34: DHCP Client Table
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The Applications and Gaming Tab - QoS
Quality of Service (QoS) ensures better service to high-priority types of network traffic, which may involve
demanding, real-time applications, such as videoconferencing.
QoS (Quality of Service)
Wireless
The Router features Wi-Fi Multimedia (WMM™) Support. The No Acknowledgement feature is available only
when the WMM Support feature is enabled.
WMM Support. If you have other devices on your network that support WMM, keep the default, Enabled.
Otherwise, select Disabled.
No Acknowledgement. If you want to disable the Router’s Acknowledgement feature, so the Router will not resend data if an error occurs, then keep the default, Enabled. Otherwise, select Disabled.
Internet Access Priority
Figure 5-35: Applications & Gaming Tab - QoS
(Applications)
In this section, you can set the bandwidth priority for a variety of applications and devices. There are four levels
priority: High, Medium, Normal, or Low. When you set priority, do not set all applications to High, because this will
defeat the purpose of allocating the available bandwidth. If you want to select below normal bandwidth, select
Low. Depending on the application, a few attempts may be needed to set the appropriate bandwidth priority.
Enabled/Disabled. To use the QoS policies you have set, select Enabled. Otherwise, select Disabled.
Category
There are four categories available. Select one of the following: Applications, Online Games, MAC Address,
Ethernet Port, or Voice Device. Proceed to the instructions for your selection.
Applications
Applications. Select the appropriate application. If you select Add a New Application, follow the Add a New
Application instructions.
Priority. Select the appropriate priority: High, Medium, Normal, or Low.
Click the Add button to save your changes. Your new entry will appear in the Summary list.
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Add a New Application
Enter a Name
Enter any name to indicate the name of the entry.
Port Range
Enter the port range that the application will be using. For example, if you want to allocate
bandwidth for FTP, you can enter 21-21. If you need services for an application that uses from
1000 to 1250, you enter 1000-1250 as your settings. You can have up to three ranges to define
for this bandwidth allocation. Port numbers can range from 1 to 65535. Check your
application's documentation for details on the service ports used.
Figure 5-36: QoS - Applications (Add a New Application)
Select the protocol TCP or UDP, or select Both.
Priority
Select the appropriate priority: High, Medium, Normal, or Low.
Click the Add button to save your changes. Your new entry will appear in the Summary list.
Online Games
Games. Select the appropriate game.
Priority. Select the appropriate priority: High, Medium, Normal, or Low.
Figure 5-37: QoS - Online Games
Click the Add button to save your changes. Your new entry will appear in the Summary list.
MAC Address
Enter a Name. Enter a name for your device.
MAC Address. Enter the MAC address of your device.
Priority. Select the appropriate priority: High, Medium, Normal, or Low.
Figure 5-38: QoS - MAC Address
Click the Add button to save your changes. Your new entry will appear in the Summary list.
Ethernet Port
Ethernet. Select the appropriate Ethernet port.
Priority. Select the appropriate priority: High, Medium, Normal, or Low.
Figure 5-39: QoS - MAC Address
Click the Add button to save your changes. Your new entry will appear in the Summary list.
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Voice Device
Enter a Name. Enter a name for your voice device.
MAC Address. Enter the MAC address of your voice device.
Priority. Select the appropriate priority: High, Medium, Normal, or Low.
Figure 5-40: QoS - Voice Device
Click the Add button to save your changes. Your new entry will appear in the Summary list.
Summary
This lists the QoS entries you have created for your applications and devices.
Priority
This displays the bandwidth priority of High, Medium, Normal, or Low.
Name
This displays the application, device, or port name.
Information
This displays the port range or MAC address entered for your entry. If a pre-configured
application or game was selected, there will be no valid entry shown in this section.
Remove
Click this button to remove an entry.
Edit
Click this button to make changes.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
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The Administration Tab - Management
When you click the Administration tab, you will see the Management screen. This screen allows you to change
the Router’s access settings and configure the UPnP (Universal Plug and Play) features. You can also back up and
restore the Router’s configuration file.
Management
Router Access
To ensure the Router’s security, you will be asked for your password when you access the Router’s Web-based
Utility. The default password is admin.
Router Password.
Router Password and Re-enter to Confirm. It is recommended that you change the default password to one of
your choice. Enter a new Router password and then enter it again in the Re-enter to Confirm field.
Figure 5-41: Administration Tab - Management
Web Access
Web Utility Access. HTTP (HyperText Transport Protocol) is the communications protocol used to connect to
servers on the World Wide Web. HTTPS uses SSL (Secured Socket Layer) to encrypt data transmitted for higher
security. Select HTTP or HTTPS.
Web Utility Access via Wireless. If you are using the Router in a public domain where you are giving wireless
access to your guests, you can disable wireless access to the Router’s Web-based Utility. You will only be able to
access the Utility via a wired connection if you disable the setting. Select Enabled to allow wireless access to the
Utility, or select Disabled to block wireless access to the Utility.
Remote Access
Remote Management. To permit remote access of the Router, from outside the local network, select Enabled.
Otherwise, keep the default setting, Disabled.
Web Utility Access. HTTP (HyperText Transport Protocol) is the communications protocol used to connect to
servers on the World Wide Web. HTTPS uses SSL (Secured Socket Layer) to encrypt data transmitted for higher
security. Select HTTP or HTTPS.
Remote Upgrade. If you want to be able to upgrade the Router remotely, from outside the local network, select
Enabled. (You must have the Remote Management feature enabled as well.) Otherwise, keep the default setting,
Disabled.
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Allowed Remote IP Address. If you want to be able to access the Router from any external IP address, select
Any IP Address. If you want to specify an external IP address or range of IP addresses, then select the second
option and complete the fields provided.
Remote Management Port. Enter the port number that will be open to outside access.
NOTE: When you are in a remote location and wish to manage the Router, enter http://: port or https://: port, depending on whether you use HTTP or
HTTPS. Enter the Router’s specific Internet IP address in place of , and enter
the Administration Port number in place of the word port.
UPnP
Universal Plug and Play (UPnP) allows Windows Me and XP to automatically configure the Router for various
Internet applications, such as gaming and videoconferencing.
UPnP. If you want to use UPnP, keep the default setting, Enabled. Otherwise, select Disabled.
Allow Users to Configure. Select Enabled, if you want to be able to make manual changes to the Router while
using the UPnP feature. Otherwise, keep the default setting, Disabled.
Allow Users to Disable Internet Access. Select Enabled, if you want to be able to prohibit any and all Internet
connections. Otherwise, keep the default setting, Disabled.
Backup and Restore
Backup Configurations. To back up the Router’s configuration settings, click this button and follow the onscreen instructions.
Restore Configurations. To restore the Router’s configuration settings, click this button and follow the onscreen instructions. (You must have previously backed up the Router’s configuration settings.)
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
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The Administration Tab - Log
When you click the Administration tab, you will see the Log screen. It provides you with a log of all incoming and
outgoing URLs or IP addresses for your Internet connection.
Log
Log. To access activity logs, select the Enabled radio button. With logging enabled, you can choose to view
temporary logs. Click the Disabled button to disable this function.
Figure 5-42: Administration Tab - Log
View Log. When you wish to view the logs, click View Log. A new screen will appear. Select Incoming Log,
Outgoing Log, Security Log, or DHCP Client Log. from the Type drop-down menu. The Incoming Log will display
a temporary log of the source IP addresses and destination port numbers for the incoming Internet traffic. The
Outgoing Log will display a temporary log of the local IP addresses, destination URLs/IP addresses, and
service/port numbers for the outgoing Internet traffic. The Security log will display the login information for the
Web-based Utility. The DHCP Client Log will display the LAN DHCP server status information.
Click the Save the Log button to save this information to a file on your PC’s hard drive. Click the Refresh button
to update the log. Click the Clear button to clear all the information that is displayed.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes. For more information, click Help.
Figure 5-43: View Log
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The Administration Tab - Diagnostics
The diagnostic tests (Ping and Traceroute) allow you to check the connections of your network devices, including
the connection to the Internet.
Ping Test. The Ping test will check the status of a connection. Enter the IP address or URL of the PC whose
connection you wish to test, the packet size (default is 32 bytes), and how many times you wish to test it. Then,
click the Start to Ping button. The Ping screen will then display the test results. Click the Close button to return
to the Diagnostics screen.
Traceroute Test. To test the performance of a connect, enter the IP address or URL of the PC whose connection
you wish to test and click the Start to Traceroute button. The Traceroute screen will then display the test results.
Click the Close button to return to the Diagnostics screen.
Figure 5-44: Administration Tab - Diagnostics
For more information, click Help.
Figure 5-45: Ping Test
Figure 5-46: Traceroute Test
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The Administration Tab - Factory Defaults
The Factory Defaults screen allows you to restore the Router’s configuration to its factory default settings.
NOTE: Do not restore the factory defaults unless you are having difficulties with the Router and
have exhausted all other troubleshooting measures. Once the Router is reset, you will have to reenter all of your configuration settings.
Factory Defaults
Restore All Settings. To clear all of the Router’s settings and reset them to their factory defaults, click the
Restore All Settings button.
Figure 5-47: Administration Tab - Factory Defaults
Restore Wireless Settings. To clear all of the Router’s Wireless settings and reset them to their factory defaults,
click the Restore Wireless Settings button.
Help information is shown on the right-hand side of the screen.
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The Administration Tab - Firmware Upgrade
The Firmware Upgrade screen allows you to upgrade the Router’s firmware. Do not upgrade the firmware unless
you are experiencing problems with the Router or the new firmware has a feature you want to use.
Before upgrading the firmware, download the Router’s firmware upgrade file from the Linksys website,
www.linksys.com. Then extract the file.
Upgrade Firmware
NOTE: The Router may lose the settings you have customized. Before you upgrade its firmware,
write down all of your custom settings. After you upgrade its firmware, you will have to re-enter all
of your configuration settings.
Figure 5-48: Administration Tab - Firmware Upgrade
Please Select a File to Upgrade. In the field provided, enter the name of the extracted firmware upgrade file, or
click the Browse button to find this file.
firmware: the programming code
that runs a networking device.
Start to Upgrade. After you have selected the appropriate file, click this button, and follow the on-screen
instructions.
download: to receive a file transmitted over a network.
Help information is shown on the right-hand side of the screen.
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upgrade: to replace existing software or
firmware with a newer version.
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The Status Tab - Router
The Router screen displays information about the Router and its current settings. The on-screen information will
vary depending on the Internet Connection Type selected on the Setup screen.
Router Information
Firmware Version. This is the version number of the Router’s current firmware.
Current Time. This shows the time set on the Router.
Internet MAC Address. This is the Router’s MAC address, as seen by your ISP.
Host Name. If required by your ISP, this was entered on the Basic Setup screen.
Domain Name. If required by your ISP, this was entered on the Basic Setup screen.
Internet Connection
Figure 5-49: Status Tab - Router
Connection Type. This indicates the type of Internet connection you are using.
For dial-up style connections such as PPPoE or PPTP, there is a Connect button to click if there is no connection
and you want to establish an Internet connection.
Internet IP Address. The Router’s Internet IP address is displayed here.
Subnet Mask and Default Gateway. The Router’s Subnet Mask and Default Gateway address are displayed here
for DHCP and static IP connections.
DNS1-3. Shown here are the DNS (Domain Name System) IP addresses currently used by the Router.
MTU. Shown here is the MTU (Maximum Transmission Unit) setting for the Router.
IP Address Release. Available for a DHCP connection, click this button to release the current IP address of the
device connected to the Router’s Internet port.
IP Address Renew. Available for a DHCP connection, click this button to replace the current IP address—of the
device connected to the Router’s Internet port—with a new IP address.
Click the Refresh button to update the on-screen information. For more information, click Help.
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The Status Tab - Local Network
The Local Network screen displays information about the local network.
Local Network
MAC Address. The MAC Address of the Router’s local interface is displayed here.
Router IP Address. This shows the Router’s IP address, as it appears on your local network.
Subnet Mask. The Router’s Subnet Mask is shown here.
DHCP Server. The status of the Router’s DHCP server function is displayed here.
Figure 5-50: Status Tab - Local Network
Start IP Address. For the range of IP addresses used by devices on your local network, the beginning IP address
is shown here.
End IP Address. For the range of IP addresses used by devices on your local network, the ending IP address is
shown here.
DHCP Client Table. Click the DHCP Clients Table button to view the DHCP Client Table. It lists computers and
other devices that have been assigned IP addresses by the Router. The list can be sorted by Client Name,
Interface, IP Address, MAC Address, and Expired Time (how much time is left for the current IP address). To
remove a DHCP client, click the Delete button. To retrieve the most up-to-date information, click the Refresh
button. To exit this screen and return to the Local Network screen, click the Close button.
For more information, click Help.
Figure 5-51: Status Tab - Local Network
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The Status Tab - Wireless
The Wireless screen displays the status information of your wireless network.
Wireless
MAC Address. The MAC Address of the Router’s wireless interface is displayed here.
Mode. Displayed here is the wireless mode (Mixed, Wireless-N Only, Wireless-G Only, Wireless-B Only, or
Disabled) used by the network.
Network Name (SSID). Displayed here is the name of the wireless network or SSID.
Radio Band. Displayed here is the Radio Band setting selected on the Basic Wireless Settings screen.
Figure 5-52: Status Tab - Wireless
Wide Channel. Displayed here is the Wide Channel setting selected on the Basic Wireless Settings screen.
Standard Channel. Shown here is the Standard Channel setting selected on the Basic Wireless Settings screen.
Security. Displayed here is the wireless security method used by the Router.
SSID Broadcast. Displayed here is the status of the SSID Broadcast feature.
For more information, click Help.
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Appendix A: Troubleshooting
This appendix consists of two parts: “Common Problems and Solutions” and “Frequently Asked Questions.”
Provided are possible solutions to problems that may occur during the installation and operation of the Router.
Read the descriptions below to help you solve your problems. If you can’t find an answer here, check the Linksys
website at www.linksys.com.
Common Problems and Solutions
1. I’m trying to access the Router’s Web-based Utility, but I do not see the login screen. Instead, I see a
screen saying, “404 Forbidden.”
If you are using Windows Explorer, perform the following steps until you see the Web-based Utility’s login
screen (Netscape Navigator will require similar steps):
1. Click File. Make sure Work Offline is NOT checked.
2. Press CTRL + F5. This is a hard refresh, which will force Windows Explorer to load new webpages,
not cached ones.
3. Click Tools. Click Internet Options. Click the Security tab. Click the Default level button. Make sure
the security level is Medium or lower. Then click the OK button.
2. I need to set a static IP address on a PC.
You can assign a static IP address to a PC by performing the following steps:
• For Windows 98SE and Me:
1. Click Start, Settings, and Control Panel. Double-click Network.
2. In The following network components are installed box, select the TCP/IP-> associated with your
Ethernet adapter. If you only have one Ethernet adapter installed, you will only see one TCP/IP line
with no association to an Ethernet adapter. Highlight it and click the Properties button.
3. In the TCP/IP properties window, select the IP address tab, and select Specify an IP address. Enter
a unique IP address that is not used by any other computer on the network connected to the Router.
Make sure that each IP address is unique for each PC or network device.
4. Click the Gateway tab, and in the New Gateway prompt, enter 192.168.1.1, which is the default IP
address of the Router. Click the Add button to accept the entry.
5. Click the DNS tab, and make sure the DNS Enabled option is selected. Enter the Host and Domain
names (e.g., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your
ISP has not provided the DNS IP address, contact your ISP to get that information or go to its website
for the information.
6. Click the OK button in the TCP/IP properties window, and click Close or the OK button for the Network
window.
7. Restart the computer when asked.
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• For Windows 2000:
1. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.
2. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and
select the Properties option.
3. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP),
and click the Properties button. Select Use the following IP address option.
4. Enter a unique IP address that is not used by any other computer on the network connected to the
Router.
5. Enter the Subnet Mask, 255.255.255.0.
6. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).
7. Toward the bottom of the window, select Use the following DNS server addresses, and enter the
Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its
website to find the information.
8. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the
Local Area Connection Properties window.
9. Restart the computer if asked.
• For Windows XP:
The following instructions assume you are running Windows XP with the default interface. If you are using
the Classic interface (where the icons and menus look like previous Windows versions), please follow the
instructions for Windows 2000.
1. Click Start and Control Panel.
2. Click the Network and Internet Connections icon and then the Network Connections icon.
3. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using,
and select the Properties option.
4. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the
Properties button.
5. Enter a unique IP address that is not used by any other computer on the network connected to the
Router.
6. Enter the Subnet Mask, 255.255.255.0.
7. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).
8. Toward the bottom of the window, select Use the following DNS server addresses, and enter the
Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its
website to find the information.
9. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the
Local Area Connection Properties window.
3. I want to test my Internet connection.
A Check your TCP/IP settings.
For Windows 98SE, Me, 2000, and XP:
• Refer to Windows Help for details. Make sure Obtain IP address automatically is selected in the settings.
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B Open a command prompt.
For Windows 98SE and Me:
• Click Start and Run. In the Open field, type command. Press the Enter key or click the OK button.
For Windows 2000 and XP:
• Click Start and Run. In the Open field, type cmd. Press the Enter key or click the OK button. In the
command prompt, type ping 192.168.1.1 and press the Enter key.
• If you get a reply, the computer is communicating with the Router.
• If you do NOT get a reply, please check the cable, and make sure Obtain an IP address automatically is
selected in the TCP/IP settings for your Ethernet adapter.
C In the command prompt, type ping followed by your Internet or WAN IP address and press the Enter key.
The Internet or WAN IP Address can be found on the Status screen of the Router’s web-based utility. For
example, if your Internet or WAN IP address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key.
• If you get a reply, the computer is connected to the Router.
• If you do NOT get a reply, try the ping command from a different computer to verify that your original
computer is not the cause of the problem.
D In the command prompt, type ping www.yahoo.com and press the Enter key.
• If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the ping
command from a different computer to verify that your original computer is not the cause of the problem.
• If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a
different computer to verify that your original computer is not the cause of the problem.
4. I am not getting an IP address on the Internet with my Internet connection.
• Refer to “Problem #3, I want to test my Internet connection” to verify that you have connectivity.
• If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix E:
Finding the MAC address and IP Address for Your Ethernet Adapter.” If you need to clone the MAC address
of your Ethernet adapter onto the Router, see the System section of “Chapter 5: Configuring the
Wireless-N Broadband Router” for details.
• Make sure you are using the right Internet connection settings. Contact your ISP to see if your Internet
connection type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to
the Setup section of “Chapter 5: Configuring the Wireless-N Broadband Router” for details on Internet
connection settings.
• Make sure you have the right cable. Check to see if the Internet column has a solidly lit Link/Act LED.
• Make sure the cable connecting from your cable or DSL modem is connected to the Router’s Internet port.
Verify that the Status page of the Router’s web-based utility shows a valid IP address from your ISP.
• Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router,
cable/DSL modem, and computer. Check the Status tab of the Router’s web-based utility to see if you get
an IP address.
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5. I am not able to access the Setup page of the Router’s web-based utility.
• Refer to “Problem #3, I want to test my Internet connection” to verify that your computer is properly
connected to the Router.
• Refer to “Appendix E: Finding the MAC Address and IP address for Your Ethernet Adapter” to verify that
your computer has an IP Address, Subnet Mask, Gateway, and DNS.
• Set a static IP address on your system; refer to “Problem #2: I need to set a static IP address.”
• Refer to “Problem #10: I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up
window.”
6. I need to set up a server behind my Router and make it available to the public.
To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using.
For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and
port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the
documentation provided with the server you installed.
Follow these steps to set up port forwarding through the Router’s web-based utility. We will be setting up
web, ftp, and mail servers.
1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router.
Go to the Applications & Gaming => Port Range Forwarding tab.
2. Enter any name you want to use for the Application Name.
3. Enter the Start and End Port range of the service you are using. For example, if you have a web server,
you would enter the range 80 to 80.
4. Select the protocol(s) you will be using, TCP and/or UDP.
5. Enter the IP address of the PC or network device that you want the port server to go to. For example,
if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field
provided. Check “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for
details on getting an IP address.
6. Check the Enabled option for the port services you want to use. Consider the example below:
Application Name
Start and End Port Protocol
To IP Address
Enabled
Web server
80 to 80
Both
192.168.1.100
FTP server
21 to 21
TCP
192.168.1.101
SMTP (outgoing)
25 to 25
Both
192.168.1.102
POP3 (incoming)
110 to 110
Both
192.168.1.102
When you have completed the configuration, click the Save Settings button.
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7. I need to set up online game hosting or use other Internet applications.
If you want to play online games or use Internet applications, most will work without doing any port
forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet
application. This would require you to set up the Router to deliver incoming packets or data to a specific
computer. This also applies to the Internet applications you are using. The best way to get the information on
what port services to use is to go to the website of the online game or application you want to use. Follow
these steps to set up online game hosting or use a certain Internet application:
1. Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router. Go to
the Applications & Gaming => Port Range Forwarding tab.
2. Enter any name you want to use for the Application Name.
3. Enter the Start and End Port range of the service you are using. For example, if you want to host
Unreal Tournament (UT), you would enter the range 7777 to 27900.
4. Select the protocol(s) you will be using, TCP and/or UDP.
5. Enter the IP address of the PC or network device that you want the port server to go to. For example,
if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field
provided. Check “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for
details on getting an IP address.
6. Check the Enabled option for the port services you want to use. Consider the example below:
Application Name Start and End Port
Protocol
To IP Address
Enabled
UT
7777 to 27900
Both
192.168.1.100
Halflife
27015 to 27015
Both
192.168.1.105
PC Anywhere
5631 to 5631
UDP
192.168.1.102
VPN IPSEC
500 to 500
UDP
192.168.1.100
When you have completed the configuration, click the Save Settings button.
8. I can’t get the Internet game, server, or application to work.
If you are having difficulties getting any Internet game, server, or application to function properly, consider
exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an
application requires too many ports or when you are not sure which port services to use. Make sure you
disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority
over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding
settings. If the port number that the data enters from does not have port forwarding, then the Router will send
the data to whichever PC or network device you set for DMZ hosting.)
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Follow these steps to set DMZ hosting:
1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router.
Go to the Applications & Gaming => Port Range Forwarding tab.
2. Disable or remove the entries you have entered for forwarding. Keep this information in case you
want to use it at a later time.
3. Go to the Applications & Gaming => DMZ tab.
4. Select Enabled next to DMZ. For the computer you want exposed to the Internet, specify it by IP
address or MAC address. If you use its IP address, select Destination IP Address, and enter its IP
address the Destination IP Address field. If you use its MAC address, select Destination MAC
Address, and enter its MAC address in the Destination MAC Address field. Please refer to “Appendix
E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP
address. If you assigned a static IP address to the computer, then you can click the DHCP
Reservation button on the Basic Setup screen to look up its static IP address.
5. Once completed with the configuration, click the Save Settings button.
9. I forgot my password, or the password prompt always appears when I am saving settings to the
Router.
Reset the Router to factory default by pressing the Reset button for five seconds and then releasing it. If you
are still getting prompted for a password when saving settings, then perform the following steps:
1. Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router.
Enter the default password admin, and click the Administration => Management tab.
2. Enter a different password in the Router Password field, and enter the same password in the second
field to confirm the password.
3. Click the Save Settings button.
10. I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.
If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for
the Internet connection, the computer does not need any proxy settings to gain access. Please follow these
directions to verify that you do not have any proxy settings and that the browser you use is set to connect
directly to the LAN.
• For Microsoft Internet Explorer 5.0 or higher:
1. Click Start, Settings, and Control Panel. Double-click Internet Options.
2. Click the Connections tab.
3. Click the LAN settings button and remove anything that is checked.
4. Click the OK button to go back to the previous screen.
5. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.
• For Netscape 4.7 or higher:
1. Start Netscape Navigator, and click Edit, Preferences, Advanced, and Proxies.
2. Make sure you have Direct connection to the Internet selected on this screen.
3. Close all the windows to finish.
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11. To start over, I need to set the Router to factory defaults.
Hold the Reset button for five seconds and then release it. This will return the password, forwarding, and
other settings on the Router to the factory default settings. In other words, the Router will revert to its original
factory configuration.
12. I need to upgrade the firmware.
In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download
the latest firmware at www.linksys.com.
Follow these steps:
1. Go to the Linksys website at http://www.linksys.com and download the latest firmware.
2. To upgrade the firmware, follow the steps in “Appendix C: Upgrading Firmware.”
13. The firmware upgrade failed, and/or the Power LED is flashing.
The upgrade could have failed for a number of reasons. Follow these steps to upgrade the firmware and/or
make the Power LED stop flashing:
• If the firmware upgrade failed, use the TFTP program (it was downloaded along with the firmware). Open
the pdf that was downloaded along with the firmware and TFTP program, and follow the pdf’s
instructions.
• Set a static IP address on the PC; refer to “Problem #2, I need to set a static IP address.” Use the following
IP address settings for the computer you are using:
IP Address: 192.168.1.50
Subnet Mask: 255.255.255.0
Gateway: 192.168.1.1
• Perform the upgrade using the TFTP program or the Administration tab of the Router’s web-based utility.
14. My DSL service’s PPPoE is always disconnecting.
PPPoE is not actually a dedicated or always-on connection. The DSL ISP can disconnect the service after a
period of inactivity, just like a normal phone dial-up connection to the Internet.
• There is a setup option to “keep alive” the connection. This may not always work, so you may need to reestablish connection periodically.
1. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the
Router.
2. Enter the password, if asked. (The default password is admin.)
3. On the Setup screen, select the option Keep Alive, and set the Redial Period option at 20 (seconds).
4. Click the Save Settings button.
5. Click the Status tab, and click the Connect button.
6. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you
see the login status display as Connected.
• Click the Save Settings button to continue.
• If the connection is lost again, follow steps 1- 6 to re-establish connection.
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15. I can’t access my e-mail, web or I am getting corrupted data from the Internet.
The Maximum Transmission Unit (MTU) setting may need to be adjusted. By default, the MTU is set at 1500.
For most DSL users, it is strongly recommended to use MTU 1492.
• If you are having some difficulties, perform the following steps:
1. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the
Router.
2. Enter the password, if asked. (The default password is admin.)
3. On the Basic Setup screen, look for the MTU option, and select Manual. In the Size field, enter 1492.
4. Click the Save Settings button to continue.
• If your difficulties continue, change the Size to different values. Try this list of values, one value at a time,
in this order, until your problem is solved:
1462
1400
1362
1300
16. The Power LED keeps flashing.
The Power LED flashes when the Router is first powered up. Meantime, the Router will boot up itself and
check for proper operation. After finishing the checking procedure, the LED stays solid to show that the
Router is working fine. If the LED keeps flashing after this time, the Router is not working properly. Try to flash
the firmware by assigning a static IP address to the computer, and then upgrade the firmware. Try using the
following settings, IP Address: 192.168.1.50 and Subnet Mask: 255.255.255.0.
17. When I enter a URL or IP address, I get a time-out error or am prompted to retry.
• Check if other PCs work. If they do, ensure that your workstation’s IP settings are correct (IP Address,
Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem.
• If the PCs are configured correctly, but still not working, check the Router. Ensure that it is connected and
powered on. Connect to it and check its settings. (If you cannot connect to it, check the LAN and power
connections.)
• If the Router is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is
working correctly. You can remove the Router to verify a direct connection.
• Manually configure the TCP/IP settings with a DNS address provided by your ISP.
• Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet
Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is
set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy.
Make sure that Netscape Navigator is set to Direct connection to the Internet.
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Frequently Asked Questions
What is the maximum number of IP addresses that the Router will support?
The Router will support up to 253 IP addresses.
Is IPSec Pass-Through supported by the Router?
Yes, it is a built-in feature that the Router automatically enables.
Where is the Router installed on the network?
In a typical environment, the Router is installed between the cable/DSL modem and the LAN. Plug the Router into
the cable/DSL modem’s Ethernet port.
Does the Router support IPX or AppleTalk?
No. TCP/IP is the only protocol standard for the Internet and has become the global standard for communications.
IPX, a NetWare communications protocol used only to route messages from one node to another, and AppleTalk, a
communications protocol used on Apple and Macintosh networks, can be used for LAN to LAN connections, but
those protocols cannot connect from the Internet to a LAN.
Does the Internet connection of the Router support 100Mbps Ethernet?
The Router’s current hardware design supports up to 100Mbps Ethernet on its Internet port; however, the Internet
connection speed will vary depending on the speed of your broadband connection. The Router also supports
100Mbps over the auto-sensing Fast Ethernet 10/100 switch on the LAN side of the Router.
What is Network Address Translation and what is it used for?
Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that
is sent out to the Internet. This adds a level of security since the address of a PC connected to the private LAN is
never transmitted on the Internet. Furthermore, NAT allows the Router to be used with low cost Internet
accounts, such as DSL or cable modems, when only one TCP/IP address is provided by the ISP. The user may
have many private addresses behind this single address provided by the ISP.
Does the Router support any operating system other than Windows 98SE, Windows Millennium,
Windows 2000, or Windows XP?
Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of
any non-Windows operating systems.
Does the Router support ICQ send file?
Yes, with the following fix: click ICQ menu -> preference -> connections tab->, and check I am behind a firewall
or proxy. Then set the firewall time-out to 80 seconds in the firewall setting. The Internet user can then send a file
to a user behind the Router.
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Wireless-N Broadband Router
I set up an Unreal Tournament Server, but others on the LAN cannot join. What do I need to do?
If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN
computers and forward ports 7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of the server. You can
also use a port forwarding range of 7777 ~ 27900. If you want to use the UT Server Admin, forward another port.
(Port 8080 usually works well but is used for remote admin. You may have to disable this.) Then in the
[UWeb.WebServer] section of the server.ini file, set the ListenPort to 8080 (to match the mapped port above) and
ServerName to the IP assigned to the Router from your ISP.
Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP
address?
It depends on which network game or what kind of game server you are using. For example, Unreal Tournament
supports multi-login with one public IP.
How do I get Half-Life: Team Fortress to work with the Router?
The default client port for Half-Life is 27005. The computers on your LAN need to have “+clientport 2700x”
added to the HL shortcut command line; the x would be 6, 7, 8, and on up. This lets multiple computers connect
to the same server. One problem: Version 1.0.1.6 won’t let multiple computers with the same CD key connect at
the same time, even if on the same LAN (not a problem with 1.0.1.3). As far as hosting games, the HL server does
not need to be in the DMZ. Just forward port 27015 to the local IP address of the server computer.
How can I block corrupted FTP downloads?
If you are get corrupted files when you download a file with your FTP client, try using another FTP program.
The web page hangs; downloads are corrupt, or nothing but junk characters are being displayed on the
screen. What do I need to do?
Force your Ethernet adapter to 10Mbps or half duplex mode, and turn off the “Auto-negotiate” feature of your
Ethernet adapter as a temporary measure. (Please look at the Network Control Panel in your Ethernet adapter’s
Advanced Properties tab.) Make sure that your proxy setting is disabled in the browser. Check our website at
www.linksys.com for more information.
If all else fails in the installation, what can I do?
Reset the Router by holding down the Reset button until the Power LED fully turns on and off. Reset your cable or
DSL modem by powering the unit off and then on. Obtain and flash the latest firmware release that is available on
the Linksys website, www.linksys.com.
How will I be notified of new Router firmware upgrades?
All Linksys firmware upgrades are posted on the Linksys website at www.linksys.com, where they can be
downloaded for free. To upgrade the Router’s firmware, use the Administration - Firmware Upgrade tab of the
Router’s web-based utility. If the Router’s Internet connection is working well, there is no need to download a
newer firmware version, unless that version contains new features that you would like to use. Downloading a
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more current version of Router firmware will not enhance the quality or speed of your Internet connection, and
may disrupt your current connection stability.
Will the Router function in a Macintosh environment?
Yes, but the Router’s setup pages are accessible only through Internet Explorer 4.0 or Netscape Navigator 4.0 or
higher for Macintosh.
I am not able to get the web configuration screen for the Router. What can I do?
You may have to remove the proxy settings on your Internet browser, e.g., Netscape Navigator or Internet
Explorer. Or remove the dial-up settings on your browser. Check with your browser documentation, and make
sure that your browser is set to connect directly and that any dial-up is disabled. Make sure that your browser is
set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and
then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape
Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct
connection to the Internet.
What is DMZ Hosting?
Demilitarized Zone (DMZ) allows one IP address (computer) to be exposed to the Internet. Some applications
require multiple TCP/IP ports to be open. It is recommended that you set your computer with a static IP if you
want to use DMZ Hosting. To get the LAN IP address, see “Appendix E: Finding the MAC Address and IP Address
for Your Ethernet Adapter.”
If DMZ Hosting is used, does the exposed user share the public IP with the Router?
No.
Does the Router pass PPTP packets or actively route PPTP sessions?
The Router allows PPTP packets to pass through.
Is the Router cross-platform compatible?
Any platform that supports Ethernet and TCP/IP is compatible with the Router.
How many ports can be simultaneously forwarded?
Theoretically, the Router can establish 520 sessions at the same time, but it can only forward 10 ranges of ports.
What are the advanced features of the Router?
The Router’s advanced features include advanced wireless settings, filters, access restriction policies, port
forwarding, advanced routing, and DDNS.
How do I get mIRC to work with the Router?
Under the Port Forwarding tab, set port forwarding to 113 for the PC on which you are using mIRC.
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Can the Router act as my DHCP server?
Yes. The Router has DHCP server software built-in.
Can I run an application from a remote computer over the wireless network?
This will depend on whether or not the application is designed to be used over a network. Consult the
application’s documentation to determine if it supports operation over a network.
What is the IEEE 802.11g standard?
It is one of the IEEE standards for wireless networks. The 802.11g standard allows wireless networking hardware
from different manufacturers to communicate, provided that the hardware complies with the 802.11g standard.
The 802.11g standard states a maximum data transfer rate of 54Mbps and an operating frequency of 2.4GHz.
What is the IEEE 802.11b standard?
It is one of the IEEE standards for wireless networks. The 802.11b standard allows wireless networking hardware
from different manufacturers to communicate, provided that the hardware complies with the 802.11b standard.
The 802.11b standard states a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.
What IEEE 802.11g features are supported?
The product supports the following IEEE 802.11g functions:
• CSMA/CA plus Acknowledge protocol
• OFDM protocol
• Multi-Channel Roaming
• Automatic Rate Selection
• RTS/CTS feature
• Fragmentation
• Power Management
What IEEE 802.11b features are supported?
The product supports the following IEEE 802.11b functions:
• CSMA/CA plus Acknowledge protocol
• Multi-Channel Roaming
• Automatic Rate Selection
• RTS/CTS feature
• Fragmentation
• Power Management
What is ad-hoc mode?
When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to
communicate directly with each other. The ad-hoc network will not communicate with any wired network.
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What is infrastructure mode?
When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with
a wired network through a wireless access point.
What is roaming?
Roaming is the ability of a portable computer to communicate continuously while the user and computer are
moving freely throughout an area greater than that covered by a single access point. Before using the roaming
function, the workstation must make sure that it is the same channel number with the access point of dedicated
coverage area.
To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each
node and access point, for example, must always acknowledge receipt of each message. Each node must
maintain contact with the wireless network even when not actually transmitting data. Achieving these functions
simultaneously requires a dynamic RF networking technology that links access points and nodes. In such a
system, the user’s end node undertakes a search for the best possible access to the system. First, it evaluates
such factors as signal strength and quality, as well as the message load currently being carried by each access
point and the distance of each access point to the wired backbone. Based on that information, the node next
selects the right access point and registers its address. Communications between end node and host computer
can then be transmitted up and down the backbone.
As the user moves on, the end node’s RF transmitter regularly checks the system to determine whether it is in
touch with the original access point or whether it should seek a new one. When a node no longer receives
acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it
then re-registers, and the communication process continues.
What is ISM band?
The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the ISM
(Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available
worldwide. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in
the hands of users around the globe.
What is Spread Spectrum?
Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in
reliable, secure, mission-critical communications systems. It is designed to trade off bandwidth efficiency for
reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband
transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that
the receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not tuned to
the right frequency, a spread-spectrum signal looks like background noise. There are two main alternatives,
Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).
Appendix A: Troubleshooting
Frequently Asked Questions
62
Wireless-N Broadband Router
What is DSSS? What is FHSS? And what are their differences?
Frequency-Hopping Spread-Spectrum (FHSS) uses a narrowband carrier that changes frequency in a pattern that
is known to both transmitter and receiver. Properly synchronized, the net effect is to maintain a single logical
channel. To an unintended receiver, FHSS appears to be short-duration impulse noise. Direct-Sequence SpreadSpectrum (DSSS) generates a redundant bit pattern for each bit to be transmitted. This bit pattern is called a chip
(or chipping code). The longer the chip, the greater the probability that the original data can be recovered. Even if
one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can
recover the original data without the need for retransmission. To an unintended receiver, DSSS appears as low
power wideband noise and is rejected (ignored) by most narrowband receivers.
What is a MAC Address?
The Media Access Control (MAC) address is a unique number assigned by the manufacturer to any Ethernet
networking device, such as a network adapter, that allows the network to identify it at the hardware level. For all
practical purposes, this number is usually permanent. Unlike IP addresses, which can change every time a
computer logs onto the network, the MAC address of a device stays the same, making it a valuable identifier for
the network.
How do I reset the Router?
Press the Reset button on the back panel for about five seconds. This will reset the Router to its default settings.
How do I resolve issues with signal loss?
There is no way to know the exact range of your wireless network without testing. Every obstacle placed between
the Router and a wireless PC will create signal loss. Lead glass, metal, concrete floors, water and walls will
inhibit the signal and reduce range. Start with the Router and your wireless PC in the same room and move it
away in small increments to determine the maximum range in your environment.
You may also try using different channels, as this may eliminate interference affecting only one channel.
I have excellent signal strength, but I cannot see my network.
Wireless security is probably enabled on the Router, but not on your wireless adapter (or vice versa). Verify that
the same wireless security method and passphrase/keys are being used on all devices of your wireless network.
How many channels/frequencies are available with the Router?
There are eleven available channels, ranging from 1 to 11, in North America. There may be additional channels
available in other regions, subject to the regulations of your region and/or country.
If your questions are not addressed here, refer to the Linksys website, www.linksys.com.
Appendix A: Troubleshooting
Frequently Asked Questions
63
Wireless-N Broadband Router
Appendix B: Wireless Security
Linksys wants to make wireless networking as safe and easy for you as possible. The current generation of
Linksys products provide several network security features, but they require specific action on your part for
implementation. So, keep the following in mind whenever you are setting up or using your wireless network.
Security Precautions
The following is a complete list of security precautions to take (at least steps 1 through 5 should be followed):
1. Change the default SSID.
2. Disable SSID Broadcast.
3. Change the default password for the Administrator account.
4. Enable MAC Address Filtering.
5. Change the SSID periodically.
6. Use the highest encryption algorithm possible. Use WPA if it is available. Please note that this may reduce
your network performance.
7. Change the WEP encryption keys periodically.
For information on implementing these security features, refer to “Chapter 5: Configuring the Wireless-N
Broadband Router.”
Security Threats Facing Wireless Networks
Wireless networks are easy to find. Hackers know that in order to join a wireless network, wireless networking
products first listen for “beacon messages”. These messages can be easily decrypted and contain much of the
network’s information, such as the network’s SSID (Service Set Identifier). Here are the steps you can take:
Change the administrator’s password regularly. With every wireless networking device you use, keep in
mind that network settings (SSID, WEP keys, etc.) are stored in its firmware. Your network administrator is the
only person who can change network settings. If a hacker gets a hold of the administrator’s password, he, too,
can change those settings. So, make it harder for a hacker to get that information. Change the administrator’s
password regularly.
Appendix B: Wireless Security
Security Precautions
64
Wireless-N Broadband Router
SSID. There are several things to keep in mind about the SSID:
1. Disable Broadcast
2. Make it unique
3. Change it often
Most wireless networking devices will give you the option of broadcasting the SSID. While this option may be
more convenient, it allows anyone to log into your wireless network. This includes hackers. So, don’t broadcast
the SSID.
Wireless networking products come with a default SSID set by the factory. (The Linksys default SSID is “linksys”.)
Hackers know these defaults and can check these against your network. Change your SSID to something unique
and not something related to your company or the networking products you use.
Change your SSID regularly so that any hackers who have gained access to your wireless network will have to
start from the beginning in trying to break in.
MAC Addresses. Enable MAC Address filtering. MAC Address filtering will allow you to provide access to only
those wireless nodes with certain MAC Addresses. This makes it harder for a hacker to access your network with
a random MAC Address.
WEP Encryption. Wired Equivalent Privacy (WEP) is often looked upon as a cure-all for wireless security
concerns. This is overstating WEP’s ability. Again, this can only provide enough security to make a hacker’s job
more difficult.
There are several ways that WEP can be maximized:
IMPORTANT: Always remember that each device
in your wireless network MUST use the same
security method and key, or else your wireless
network will not function properly.
1. Use the highest level of encryption possible
2. Use “Shared Key” authentication
3. Change your WEP key regularly
WPA. Wi-Fi Protected Access (WPA) is the newest and best available standard in Wi-Fi security. WPA2 is the
newer version of Wi-Fi Protected Access with stronger encryption than WPA. WPA and WPA2 gives you a choice of
two encryption methods: TKIP (Temporal Key Integrity Protocol), which incorporates Message Integrity Code (MIC)
to provide protection against hackers, and AES (Advanced Encryption System), which utilizes a symmetric 128Bit block data encryption. (AES is stronger than TKIP.)
Appendix B: Wireless Security
Security Threats Facing Wireless Networks
65
Wireless-N Broadband Router
WPA-Enterprise and WPA2-Enterprise use a RADIUS (Remote Authentication Dial-In User Service) server for
authentication. RADIUS uses a RADIUS server and WEP encryption.
WPA/WPA2-Personal. Select the type of algorithm, TKIP or AES, and enter a password in the Pre-shared Key
field of 8-63 characters. Enter a Key Renewal period time between 0 and 99,999 seconds, which instructs the
Router or other device how often it should change the encryption keys.
WPA/WPA2-Enterprise. This method is WPA or WPA2 used in coordination with a RADIUS server. Enter the IP
address and port number of the RADIUS server. Then enter the key shared between the Router and its RADIUS
server. Then enter a Key Renewal period, which instructs the Router or other device how often it should
change the encryption keys.
RADIUS. This method is WEP used in coordination with a RADIUS server. Enter the IP address and port
number of the RADIUS server. Then enter the key shared between the Router and its RADIUS server. Enter the
WEP settings.
Implementing encryption may have a negative impact on your network’s performance, but if you are transmitting
sensitive data over your network, encryption should be used.
These security recommendations should help keep your mind at ease while you are enjoying the most flexible
and convenient technology Linksys has to offer.
Appendix B: Wireless Security
Security Threats Facing Wireless Networks
66
Wireless-N Broadband Router
Appendix C: Upgrading Firmware
The Router's firmware is upgraded through the Web-based Utility's Administration tab. Follow these instructions:
1. Download the firmware from Linksys's website at www.linksys.com.
2. Extract the firmware file on your computer.
3. Open the Router’s Web-based Utility, and click the Administration tab.
4. Click the Firmware Upgrade tab, and the Firmware Upgrade screen will appear.
5. Enter the location of the firmware's file, or click the Browse button to find the file.
6. Click the Start to Upgrade button, and follow the on-screen instructions.
Appendix C: Upgrading Firmware
Figure C-1: Firmware Upgrade
67
Wireless-N Broadband Router
Appendix D: Windows Help
Almost all Linksys wireless products require Microsoft Windows. Windows is the most used operating system in
the world and comes with many features that help make networking easier. These features can be accessed
through Windows Help and are described in this appendix.
TCP/IP
Before a computer can communicate with the Router, TCP/IP must be enabled. TCP/IP is a set of instructions, or
protocol, all PCs follow to communicate over a network. This is true for wireless networks as well. Your PCs will
not be able to utilize wireless networking without having TCP/IP enabled. Windows Help provides complete
instructions on enabling TCP/IP.
Shared Resources
If you wish to share printers, folder, or files over your network, Windows Help provides complete instructions on
utilizing shared resources.
Network Neighborhood/My Network Places
Other PCs on your network will appear under Network Neighborhood or My Network Places (depending upon the
version of Windows you're running). Windows Help provides complete instructions on adding PCs to your
network.
Appendix D: Windows Help
68
Wireless-N Broadband Router
AppendixE:FindingtheMACAddressandIPAddressforYour
Ethernet Adapter
This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC
filtering and/or MAC address cloning feature of the Router. You can also find the IP address of your computer’s
Ethernet adapter. This IP address is used for the Router’s filtering, forwarding, and/or DMZ features. Follow the
steps in this appendix to find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.
Windows 98SE or Me Instructions
1. Click Start and Run. In the Open field, enter winipcfg. Then press the Enter key or the OK button.
Figure E-1: IP Configuration Screen
2. When the IP Configuration screen appears, select the Ethernet adapter you have connected to the Router via a
CAT 5 Ethernet network cable. See Figure E-1.
3. Write down the Adapter Address as shown on your computer screen (see Figure E-2). This is the MAC address
for your Ethernet adapter and is shown as a series of numbers and letters.
The MAC address/Adapter Address is what you will use for MAC address cloning or MAC filtering.
The example in Figure E-3 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
Figure E-2: MAC Address/Adapter Address
NOTE: The MAC address is also called the Adapter Address.
Figure E-3: MAC Address/Physical Address
Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter
Windows 98SE or Me Instructions
69
Wireless-N Broadband Router
Windows 2000 or XP Instructions
1. Click Start and Run. In the Open field, enter cmd. Press the Enter key or click the OK button.
2. At the command prompt, enter ipconfig /all. Then press the Enter key.
3. Write down the Physical Address as shown on your computer screen (Figure E-3); it is the MAC address for
your Ethernet adapter. This appears as a series of numbers and letters.
The MAC address/Physical Address is what you will use for MAC address cloning or MAC filtering.
NOTE: The MAC address is also called the Physical Address.
The example in Figure E-3 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
For the Router’s Web-based Utility
For MAC filtering, enter the 12-digit MAC address in the appropriate MAC field on the Wireless MAC Filter screen.
For MAC address cloning, enter the MAC address in the MAC Address fields on the MAC Address Clone screen.
For more information, refer to “Chapter 5: Configuring the Wireless-N Broadband Router.”
Figure E-4: Wireless MAC Filter
Figure E-5: MAC Address Cloning
Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter
Windows 2000 or XP Instructions
70
Wireless-N Broadband Router
Appendix F: Glossary
This glossary contains some basic networking terms you may come across when using this product. For more
advanced terms, see the complete Linksys glossary at http://www.linksys.com/glossary.
Access Point - A device that allows wireless-equipped computers and other devices to communicate with a
wired network. Also used to expand the range of a wireless network.
Ad-hoc - A group of wireless devices communicating directly with each other (peer-to-peer) without the use of
an access point.
AES (Advanced Encryption Standard) - A security method that uses symmetric 128-bit block data encryption.
Bandwidth - The transmission capacity of a given device or network.
Bit - A binary digit.
Boot - To start a device and cause it to start executing instructions.
Broadband - An always-on, fast Internet connection.
Browser - An application program that provides a way to look at and interact with all the information on the
World Wide Web.
Byte - A unit of data that is usually eight bits long
Cable Modem - A device that connects a computer to the cable television network, which in turn connects to the
Internet.
Daisy Chain - A method used to connect devices in a series, one after the other.
DDNS (Dynamic Domain Name System) - Allows the hosting of a website, FTP server, or e-mail server with a
fixed domain name (e.g., www.xyz.com) and a dynamic IP address.
Default Gateway - A device that forwards Internet traffic from your local area network.
DHCP (Dynamic Host Configuration Protocol) - A networking protocol that allows administrators to assign
temporary IP addresses to network computers by “leasing” an IP address to a user for a limited amount of time,
instead of assigning permanent IP addresses.
Appendix F: Glossary
71
Wireless-N Broadband Router
DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it to be “seen” from
the Internet.
DNS (Domain Name Server) - The IP address of your ISP's server, which translates the names of websites into IP
addresses.
Domain - A specific name for a network of computers.
Download - To receive a file transmitted over a network.
DSL (Digital Subscriber Line) - An always-on broadband connection over traditional phone lines.
Dynamic IP Address - A temporary IP address assigned by a DHCP server.
EAP (Extensible Authentication Protocol) - A general authentication protocol used to control network access.
Many specific authentication methods work within this framework.
Encryption - Encoding data transmitted in a network.
Ethernet - IEEE standard network protocol that specifies how data is placed on and retrieved from a common
transmission medium.
Firewall - A set of related programs located at a network gateway server that protects the resources of a
network from users from other networks.
Firmware - The programming code that runs a networking device.
FTP (File Transfer Protocol) - A protocol used to transfer files over a TCP/IP network.
Full Duplex - The ability of a networking device to receive and transmit data simultaneously.
Gateway - A device that interconnects networks with different, incompatible communications protocols.
Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a
time.
HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the World
Wide Web.
Infrastructure - A wireless network that is bridged to a wired network via an access point.
IP (Internet Protocol) - A protocol used to send data over a network.
Appendix F: Glossary
72
Wireless-N Broadband Router
IP Address - The address used to identify a computer or device on a network.
IPCONFIG - A Windows 2000 and XP utility that displays the IP address for a particular networking device.
IPSec (Internet Protocol Security) - A VPN protocol used to implement secure exchange of packets at the IP layer.
ISP (Internet Service Provider) - A company that provides access to the Internet.
LAN - The computers and networking products that make up your local network.
MAC (Media Access Control) Address - The unique address that a manufacturer assigns to each networking
device.
Mbps (MegaBits Per Second) - One million bits per second; a unit of measurement for data transmission.
NAT (Network Address Translation) - NAT technology translates IP addresses of a local area network to a different
IP address for the Internet.
Network - A series of computers or devices connected for the purpose of data sharing, storage, and/or
transmission between users.
Packet - A unit of data sent over a network.
Passphrase - Used much like a password, a passphrase simplifies the WEP encryption process by automatically
generating the WEP encryption keys for Linksys products.
Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.
POP3 (Post Office Protocol 3) - A standard mail server commonly used on the Internet.
Port - The connection point on a computer or networking device used for plugging in cables or adapters.
Power over Ethernet (PoE) - A technology enabling an Ethernet network cable to deliver both data and power.
PPPoE (Point to Point Protocol over Ethernet) - A type of broadband connection that provides authentication
(username and password) in addition to data transport.
PPTP (Point-to-Point Tunneling Protocol) - A VPN protocol that allows the Point to Point Protocol (PPP) to be
tunneled through an IP network. This protocol is also used as a type of broadband connection in Europe.
RADIUS (Remote Authentication Dial-In User Service) - A protocol that uses an authentication server to control
network access.
Appendix F: Glossary
73
Wireless-N Broadband Router
RJ-45 (Registered Jack-45) - An Ethernet connector that holds up to eight wires.
Roaming - The ability to take a wireless device from one access point's range to another without losing the
connection.
Router - A networking device that connects multiple networks together.
Server - Any computer whose function in a network is to provide user access to files, printing, communications,
and other services.
SMTP (Simple Mail Transfer Protocol) - The standard e-mail protocol on the Internet.
SNMP (Simple Network Management Protocol) - A widely used network monitoring and control protocol.
SPI (Stateful Packet Inspection) Firewall - A technology that inspects incoming packets of information before
allowing them to enter the network.
SSID (Service Set IDentifier) - Your wireless network's name.
Static IP Address - A fixed address assigned to a computer or device that is connected to a network.
Static Routing - Forwarding data in a network via a fixed path.
Subnet Mask - An address code that determines the size of the network.
Switch - 1. A data switch that connects computing devices to host computers, allowing a large number of
devices to share a limited number of ports. 2. A device for making, breaking, or changing the connections in an
electrical circuit.
TCP (Transmission Control Protocol) - A network protocol for transmitting data that requires acknowledgement
from the recipient of data sent.
TCP/IP (Transmission Control Protocol/Internet Protocol) - A set of instructions PCs use to communicate over a
network.
Telnet - A user command and TCP/IP protocol used for accessing remote PCs.
TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that has no directory or password
capability.
Throughput - The amount of data moved successfully from one node to another in a given time period.
Appendix F: Glossary
74
Wireless-N Broadband Router
TKIP (Temporal Key Integrity Protocol) - a wireless encryption protocol that provides dynamic encryption keys for
each packet transmitted.
Topology - The physical layout of a network.
TX Rate - Transmission Rate.
Upgrade - To replace existing software or firmware with a newer version.
Upload - To transmit a file over a network.
URL (Uniform Resource Locator) - The address of a file located on the Internet.
VPN (Virtual Private Network) - A security measure to protect data as it leaves one network and goes to another
over the Internet.
WAN (Wide Area Network)- The Internet.
WEP (Wired Equivalent Privacy) - A method of encrypting network data transmitted on a wireless network for
greater security.
WLAN (Wireless Local Area Network) - A group of computers and associated devices that communicate with
each other wirelessly.
WPA (Wi-Fi Protected Access) - a wireless security protocol using TKIP (Temporal Key Integrity Protocol)
encryption, which can be used in conjunction with a RADIUS server.
Appendix F: Glossary
75
Wireless-N Broadband Router
Appendix G: Specifications
Model
WRT300N
Standards
802.11g, 802.11b, 802.3, 802.3u
Ports
Power, Internet, Ethernet
Button
Reset, Security
Cabling Type
CAT 5
LEDs
Power, Internet, Ethernet (1-4), Wireless, Security
# of Antennas
RF Pwr (EIRP) in dBm
17
Antenna Gain in dBi
UPnP able/cert
able
Security Features
WEP, WPA, WPA2, RADIUS
WEP Key Bits
64, 128
Dimensions
(W x H x D)
7.40" x 1.57" x 6.93"
(188 mm x 40 mm x 176 mm)
Unit Weight
18.60 oz. (0.527 kg)
Power
12V, 1A
Certifications
FCC, CE, IC-03
Appendix G: Specifications
76
Wireless-N Broadband Router
Operating Temp.
0° C to 40° C (32° F to 104° F)
Storage Temp.
-20° C to 70° C (-4° F to 158° F)
Operating Humidity
10% to 85%, Non-Condensing
Storage Humidity
5% to 90% Non-Condensing
The maximum performance for wireless is derived from IEEE Standard 802.11 specifications.
Actual performance can vary, including lower wireless network capacity, data throughput rate,
range and coverage. Performance depends on many factors, conditions and variables,
including distance from the access point, volume of network traffic, building materials and
construction, operating system used, mix of wireless products used, interference and other
adverse conditions.
Appendix G: Specifications
77
Wireless-N Broadband Router
Appendix H: Warranty Information
LIMITED WARRANTY
Linksys warrants to You that, for a period of three years (the “Warranty Period”), your Linksys Product will be substantially
free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys' entire liability under
this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any
rebates. This limited warranty extends only to the original purchaser.
If the Product proves defective during the Warranty Period call Linksys Technical Support in order to obtain a Return
Authorization Number, if applicable. BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING. If You are
requested to return the Product, mark the Return Authorization Number clearly on the outside of the package and include a
copy of your original proof of purchase. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. You
are responsible for shipping defective Products to Linksys. Linksys pays for UPS Ground shipping from Linksys back to You
only. Customers located outside of the United States of America and Canada are responsible for all shipping and handling
charges.
ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED
TO THE DURATION OF THE WARRANTY PERIOD. ALL OTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Some jurisdictions do not
allow limitations on how long an implied warranty lasts, so the above limitation may not apply to You. This warranty gives
You specific legal rights, and You may also have other rights which vary by jurisdiction.
This warranty does not apply if the Product (a) has been altered, except by Linksys, (b) has not been installed, operated,
repaired, or maintained in accordance with instructions supplied by Linksys, or (c) has been subjected to abnormal
physical or electrical stress, misuse, negligence, or accident. In addition, due to the continual development of new
techniques for intruding upon and attacking networks, Linksys does not warrant that the Product will be free of
vulnerability to intrusion or attack.
TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA, REVENUE OR
PROFIT, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, REGARDLESS OF THE THEORY
OF LIABILITY (INCLUDING NEGLIGENCE), ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT
(INCLUDING ANY SOFTWARE), EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT
WILL LINKSYS’ LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT. The foregoing limitations will apply even
if any warranty or remedy provided under this Agreement fails of its essential purpose. Some jurisdictions do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to You.
Please direct all inquiries to: Linksys, P.O. Box 18558, Irvine, CA 92623 USA.
78
Appendix H: Warranty Information
Wireless-N Broadband Router
Appendix I: Regulatory Information
FCC Statement
This product has been tested and complies with the specifications 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
according to 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 is found 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:
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void
• Reorient or relocate the receiving antenna
the user's authority to operate this equipment.
• Connect the equipment to an outlet other than the receiver's
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference that
may cause undesired operation.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
• Consult a dealer or an experienced radio/TV technician for assistance
The availability of some specific channels and/or operational frequency bands are country dependent and are firmware
programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user.
• Increase the separation between the equipment or devices
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment
should be installed and operated with minimum distance 20cm between the radiator and your body.
Safety Notices
Caution: To reduce the risk of fire, use only No.26 AWG or larger telecommunication line cord.
Do not use this product near water, for example, in a wet basement or near a swimming pool.
Avoid using this product during an electrical storm. There may be a remote risk of electric shock from lightning.
Industry Canada (Canada)
This Class B digital apparatus complies with Canadian ICES-003.
This
device numérique
complies with
ICES-003
and RSS210
rules.
Cet appareil
de laIndustry
classe BCanada
est conforme
à la norme
NMB-003
du Canada.
Thisappareil
device complies
with RSS-210
of the NMB003
Industry Canada
Rules.
OperationCanada.
is subject to the following two conditions:
Cet
est conforme
aux normes
et RSS210
d'Industrie
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Règlement d'Industry Canada
Les conditions de fonctionnement sont sujettes à deux conditions:
1) Ce périphérique ne doit pas causer d'interférence et.
Appendix
I: Regulatory
79
2) Ce périphérique
doitInformation
accepter toute interférence, y compris les interférences pouvant perturber le bon fonctionnement de ce périphérique.
IMPORTANT NOTE:
Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator &
your body.
Wireless-N Broadband Router
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste Electric and Electronic
Equipment (WEEE)
This document contains important information for users with regards to the proper disposal and recycling of Linksys
products. Consumers are required to comply with this notice for all electronic products bearing the following symbol:
Appendix I: Regulatory Information
80
Wireless-N Broadband Router
Appendix I: Regulatory Information
81
Wireless-N Broadband Router
Appendix I: Regulatory Information
82
Wireless-N Broadband Router
Appendix I: Regulatory Information
83
Wireless-G Broadband Router with RangeBooster
For more information, visit www.linksys.com.
Appendix I: Regulatory Information
84
Wireless-N Broadband Router
Appendix J: Contact Information
Need to contact Linksys?
Visit us online for information on the latest products and updates
to your existing products at:
http://www.linksys.com or
ftp.linksys.com
Can’t find information about a product you want to buy
on the web? Do you want to know more about networking
with Linksys products? Give our advice line a call at:
Or fax your request in to:
800-546-5797 (LINKSYS)
949-823-3002
If you experience problems with any Linksys product,
you can call us at:
Don’t wish to call? You can e-mail us at:
800-326-7114
support@linksys.com
If any Linksys product proves defective during its warranty period,
you can call the Linksys Return Merchandise Authorization
department for obtaining a Return Authorization Number at:
(Details on Warranty and RMA issues can be found in the Warranty
Information section in this Guide.)
949-823-3000
85
Appendix J: Contact Information

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