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Wireless-N Broadband Router
Figure 5-26: Access Restrictions Tab - Internet Access Policy
31
Figure 5-27: Summary
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Figure 5-28: List of PCs
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Figure 5-29: Applications & Gaming Tab - Single Port Forwarding
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Figure 5-30: Applications & Gaming Tab - Port Range Forwarding
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Figure 5-31: Applications & Gaming Tab - Port Range Triggering
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Figure 5-32: Applications & Gaming Tab - DMZ
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Figure 5-33: DHCP Client Table
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Figure 5-34: Applications & Gaming Tab - QoS (Applications)
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Figure 5-35: QoS - Applications (Add a New Application)
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Figure 5-36: QoS - Online Games
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Figure 5-37: QoS - MAC Address
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Figure 5-38: QoS - MAC Address
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Figure 5-39: QoS - Voice Device
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Figure 5-40: Administration Tab - Management
40
Figure 5-41: Administration Tab - Log
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Figure 5-42: View Log
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Figure 5-43: Administration Tab - Diagnostics
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Figure 5-44: Ping Test
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Figure 5-45: Traceroute Test
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Figure 5-46: Administration Tab - Factory Defaults
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Figure 5-47: Administration Tab - Firmware Upgrade
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Figure 5-48: Status Tab - Router
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Figure 5-49: Status Tab - Local Network
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Figure 5-50: Status Tab - Local Network
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Figure 5-51: Status Tab - Wireless
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Figure C-1: Firmware Upgrade
66
Figure E-1: IP Configuration Screen
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Figure E-2: MAC Address/Adapter Address
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Figure E-3: MAC Address/Physical Address
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Figure E-4: Wireless MAC Filter
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Figure E-5: MAC Address Cloning
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Page 7 / 90
1
Chapter 1: Introduction
Welcome
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 wireless security 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.
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.
lan
(local area network): The computers and
networking products that make up the network in
your home or office.
nat
(network address translation): NAT technology
translates IP addresses of a local area network to a
different IP address for the Internet.
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.
Page 8 / 90
2
Chapter 1: Introduction
What’s in this User Guide?
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.
Page 9 / 90
3
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.
Page 10 / 90
4
Chapter 2: Planning Your Wireless Network
Network Topology
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.
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.
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 wireless-
equipped 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
infrastructure
: a wireless network that is bridged
to a wired network via an access point.
ssid
(service set identifier): your wireless network’s name.
ad-hoc
: a group of wireless devices
communicating directly to each other (peer-to-
peer) without the use of an access point.

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