Wireless-G Broadband Router with SRX200

Figure 5-24: Security Tab - Firewall

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Figure 5-25: Access Restrictions Tab - Internet Access

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Figure 5-26: Internet Policy Summary

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Figure 5-27: List of PCs

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Figure 5-28: Port Services

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Figure 5-29: Applications and Gaming Tab - Port Range Forward

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Figure 5-30: Applications and Gaming Tab - Port Triggering

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Figure 5-31: Applications and Gaming Tab - DMZ

30

Figure 5-32: Applications and Gaming Tab - QoS (Add a New Application

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Figure 5-33: QoS - Voice Device

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Figure 5-34: QoS - Online Game

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Figure 5-35: Administration Tab - Management

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Figure 5-36: Administration Tab - Log

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Figure 5-37: Administration Tab - Diagnostics

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Figure 5-38: Administration Tab - Factory Defaults

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Figure 5-39: Administration Tab - Firmware Upgrade

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Figure 5-40: Administration Tab - Config Management

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Figure 5-41: Status Tab - Router

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Figure 5-42: Status Tab - Local Network

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Figure 5-43: DHCP Active IP Table

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Figure 5-44: Status Tab - Wireless

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Figure 5-45: Status Tab - System Performance

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Figure C-1: Upgrade Firmware

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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: MAC Address Clone

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Figure E-5: Wireless MAC Filter List

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Chapter 1: Introduction

Welcome

Wireless-G Broadband Router with SRX200

Chapter 1: Introduction

Welcome

Thank you for choosing the Linksys Wireless-G Broadband Router with SRX200. The Router will allow you to

network wirelessly better than ever, sharing Internet access, files and fun, easily and securely.

How does the Router do all of this? A router is a device that allows access to an Internet connection over a

network. When you use the Router, this access can be shared over the four switched ports or via the wireless

network.

The Wireless-G Broadband Router with SRX200 combines smart antenna technology with standards-based

Wireless-G (802.11g) networking.

By overlaying the signals of two Wireless-G compatible radios, the “Multiple In,

Multiple Out” (MIMO) technology effectively doubles the data rate.

Unlike ordinary wireless networking

technologies that are confused by signal reflections, MIMO actually uses these reflections to increase the range

and reduce “dead spots” in the wireless coverage area.

The robust signal travels farther, maintaining wireless

connections up to

two

times farther than standard Wireless-G.

With SRX, the farther away you are, the more speed advantage you get, and SRX200 works great with standard

Wireless-G and -B equipment, and other flavors of Linksys SRX.

But when both ends of the wireless link are

SRX200, the router can increase the throughput even more by using twice as much radio band, yielding speeds

up to

six

times as fast as standard Wireless-G.

But unlike other speed-enhanced technologies, SRX200 can

dynamically enable this double-speed mode for SRX200 devices, while still connecting to non-SRX200 wireless

devices at their respective fastest speeds.

And SRX200 is a “good neighbor”, always checking for other wireless

devices in the area before gobbling up the radio band.

In addition, the Router can encode all wireless transmissions with industrial-strength WPA encryption to help

protect your data and privacy. The whole network is protected by 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.

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

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Chapter 1: Introduction

What’s in this Guide?

Wireless-G Broadband Router with SRX200

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 Router 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 Router 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 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

Wireless-G Broadband Router with SRX200.

What’s in this Guide?

This user guide covers the steps for setting up and using the Wireless-G Broadband Router with SRX200.

•

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 with SRX200

This chapter describes the Router’s physical features.

•

Chapter 4: Connecting the Wireless-G Broadband Router with SRX200

This chapter instructs you on how to connect the Router to your network.

•

Chapter 5: Configuring the Wireless-G Broadband Router with SRX200

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.

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Chapter 1: Introduction

What’s in this Guide?

Wireless-G Broadband Router with SRX200

•

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.

•

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.

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Chapter 2: Planning Your Wireless Network

Network Topology

Wireless-G Broadband Router with SRX200

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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