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Dual-Band Wireless A+G Broadband Router
Figure 5-22: Applications and Gaming Tab - Port Triggering
31
Figure 5-23: Applications and Gaming Tab - DMZ
32
Figure 5-24: Applications and Gaming Tab - QOS
33
Figure 5-25: Administration Tab - Management
36
Figure 5-26: Administration Tab - Log
38
Figure 5-27: Incoming Log
38
Figure 5-28: Outgoing Log
38
Figure 5-29: Administration Tab - Diagnostics
39
Figure 5-30: Ping
39
Figure 5-31: Administration Tab - Factory Defaults
40
Figure 5-32: Administration Tab - Firmware Upgrade
40
Figure 5-33: Status Tab - Router
41
Figure 5-34: Status Tab - Local Network
42
Figure 5-35: DHCP Client Table
42
Figure 5-36: Status Tab - Wireless
43
Figure C-1: Administration Tab - Firmware Upgrade
62
Figure E-1: IP Configuration Screen
64
Figure E-2: MAC Address/Adapter Address
64
Figure E-3: MAC Address/Physical Address
64
Figure E-4: Wireless MAC Filter List
65
Figure E-5: MAC Address Clone
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Page 7 / 83
1
Chapter 1: Introduction
Welcome
Dual-Band Wireless A+G Broadband Router
Chapter 1: Introduction
Welcome
Thank you for choosing the Linksys Dual-Band Wireless A+G Broadband Router. The Dual-Band Wireless A+G
Broadband Router will allow you to network wirelessly better than ever, sharing Internet access, files and fun,
easily and securely.
How does the Dual-Band Wireless A+G Broadband Router do all of this? A router is a device that allows access to
an Internet connection over a network. With the Dual-Band Wireless A+G Broadband Router, this access can be
shared over the four switched ports or via the wireless broadcast at either up to 11Mbps for Wireless-B or up to
54Mbps for Wireless-A and/or Wireless-G. In addition, the whole network is protected by NAT technology. For
wireless networking, you also have a choice of wireless security methods. Additional security features, as well as
configuration options, are accessible through the easy-to-use, browser-based utility.
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 Dual-Band Wireless A+G Broadband Router bridges wireless
networks of 802.11a, 802.11b, and 802.11g standards and wired networks, allowing them to communicate with
each other.
With your wired and wireless networks connected to each other and the Internet, you can now share files and
Internet access—and even play games. All the while, the Dual-Band Wireless A+G Broadband Router protects
your networks from unauthorized and unwelcome users.
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 use the instructions in this Guide to help you connect the
Dual-Band Wireless A+G Broadband Router, set it up, and configure it to bridge your different networks. These
instructions should be all you need to get the most out of the Dual-Band Wireless A+G Broadband Router.
ethernet
: an IEEE standard network protocol that
specifies how data is placed on and retrieved from
a common transmission medium.
lan
(local area network): the computers and
networking products that make up the network
in your home or office.
802.11b
: an IEEE wireless networking standard
that specifies a maximum data transfer rate of
11Mbps and an operating frequency of 2.4GHz.
802.11g
: an IEEE wireless networking standard
that specifies a maximum data transfer rate of
54Mbps, an operating frequency of 2.4GHz, and
backward compatibility with 802.11b devices.
browser
: an application program that
provides a way to look at and interact with all
the information on the World Wide Web.
mbps
: one million bits per second; a unit of
measurement for data transmission.
nat
(network address translation): NAT
technology translated IP addresses of a
local area network to a different IP address
for the Internet.
802.11a
: an IEEE wireless networking standard
that specifies a maximum data transfer rate of
54Mbps and an operating frequency of 5GHz.
Page 8 / 83
2
Chapter 1: Introduction
What’s in this Guide?
Dual-Band Wireless A+G Broadband Router
What’s in this Guide?
This user guide covers the steps for setting up and using the Dual-Band Wireless A+G 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 Dual-Band Wireless A+G Broadband Router
This chapter describes the physical features of the Router.
•
Chapter 4: Connecting the Dual-Band Wireless A+G Broadband Router
This chapter instructs you on how to connect the Router to your network.
•
Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router
This chapter explains how to use the Web-Based Utility to configure the settings on the Dual-Band Wireless
A+G Broadband Router.
•
Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the Dual-Band Wireless A+G 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 / 83
3
Chapter 1: Introduction
What’s in this Guide?
Dual-Band Wireless A+G 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 / 83
4
Chapter 2: Planning Your Wireless Network
Network Topology
Dual-Band Wireless A+G 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 Dual-
Band Wireless A+G 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 Dual-Band Wireless A+G Broadband Router has been specifically designed for use with your 802.11a,
802.11b, and 802.11g products. Now, products using these standards can communicate with each other.
infrastructure
: a wireless network
that is bridged to a wired network via
an access point.
ssid
: 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.
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.
adapter
: a device that adds
network functionality to your PC.
ethernet
: IEEE standard network protocol that
specifies how data is placed on and retrieved
from a common transmission medium.
network
: a series of computers or devices
connected for the purpose of data sharing,
storage, and/or transmission between users.

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