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Wireless-G Broadband Router with SRX
Figure 5-27: Port Services
25
Figure 5-28: Applications and Gaming Tab - Port Range Forward
26
Figure 5-29: Applications and Gaming Tab - Port Triggering
26
Figure 5-30: Applications and Gaming Tab - DMZ
27
Figure 5-31: Applications and Gaming Tab - UPnP Forwarding
27
Figure 5-32: Administration Tab - Management
28
Figure 5-33: Administration Tab - Log
29
Figure 5-34: Administration Tab - Diagnostics
29
Figure 5-35: Administration Tab - Factory Defaults
30
Figure 5-36: Administration Tab - Firmware Upgrade
30
Figure 5-37: Administration Tab - Config Management
31
Figure 5-38: Status Tab - Router
31
Figure 5-39: Status Tab - Local Network
32
Figure 5-40: Status Tab - Wireless
33
Figure 5-41: Status Tab - System Performance
34
Figure C-1: Upgrade Firmware
54
Figure E-1: IP Configuration Screen
56
Figure E-2: MAC Address/Adapter Address
56
Figure E-3: MAC Address/Physical Address
56
Figure E-4: MAC Address Filter List
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Figure E-5: MAC Address Clone
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Page 7 / 75
1
Chapter 1: Introduction
Welcome
Wireless-G Broadband Router with SRX
Chapter 1: Introduction
Welcome
Thank you for choosing the Linksys Wireless-G Broadband Router with SRX. The Wireless-G Broadband Router
with SRX will allow you to network wirelessly better than ever, sharing Internet access, files and fun, easily and
securely.
How does the Wireless-G Broadband Router with SRX do all of this? A router is a device that allows access to an
Internet connection over a network. With the Wireless-G Broadband Router with SRX, this access can be shared
over the four switched ports or via the wireless network, broadcast at either 11Mbps for Wireless-B or 54Mbps
for Wireless-G. In addition, WPA encryption provides greater security opportunities while the whole network is
protected through a Stateful Packet Inspection (SPI) firewall and NAT technology. All of these security features, as
well as full configurability, are accessed 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 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. The Wireless-G
Broadband Router with SRX bridges wireless networks of both 802.11b and 802.11g standards and wired
networks, allowing them to communicate with each other.
With your networks all connected, wired, wireless, and the Internet, you can now share files and Internet
access—and even play games. All the while, the Wireless-G Broadband Router with SRX protects your networks
from unauthorized and unwelcome users.
You should always use the Setup CD-ROM when you first install 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 Wireless-G
Broadband Router with SRX, 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 Wireless-G Broadband Router with SRX.
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.
802.11b
: 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
Page 8 / 75
2
Chapter 1: Introduction
What’s in this Guide?
Wireless-G Broadband Router with SRX
What’s in this Guide?
This user guide covers the steps for setting up and using the Wireless-G Broadband Router with SRX.
•
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-G Broadband Router
This chapter describes the Router’s physical features.
•
Chapter 4: Connecting the Wireless-G Broadband Router
This chapter instructs you on how to connect the Router to your network.
•
Chapter 5: Configuring the Wireless-G Broadband Router
This chapter explains how to use the Router’s Web-Based Utility.
•
Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the Wireless-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 Router’s firmware 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 Router’s MAC filtering and/or MAC address cloning feature.
•
Appendix F: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
•
Appendix G: Specifications
This appendix provides the Router’s technical specifications.
Page 9 / 75
3
Chapter 1: Introduction
What’s in this Guide?
Wireless-G Broadband Router with SRX
•
Appendix H: Warranty Information
This appendix supplies the Router’s warranty information.
•
Appendix I: Regulatory Information
This appendix supplies the Router’s regulatory information.
•
Appendix J: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.
Page 10 / 75
4
Chapter 2: Planning Your Wireless Network
Network Topology
Wireless-G Broadband Router with SRX
Chapter 2: Planning Your Wireless Network
Network Topology
A wireless local area network is exactly like a regular local area network (LAN), except that each computer in the
wireless network uses a wireless device to connect to the network. Computers in a wireless network 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 wireless and wired network 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, 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-G Broadband Router has been specifically designed for use with both your 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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