Linksys WRT54GX4 User Manual

A Division of Cisco Systems, Inc.

2.4

Model No.

GHz

802.11g

WIRELESS

WRT54GX4

Wireless-G

Broadband Router

with SRX400

User Guide

Wireless-G Broadband Router with SRX400

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 © 2005 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-G 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-G Broadband Router.

This exclamation point means there is a caution or warning and is something that could damage your property or the Wireless-G Broadband Router.

This question mark provides you with a reminder about something you might need to do while using the Wireless-G 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”.

WRT54GX4-UG-51018NC JL

Wireless-G Broadband Router with SRX400

Table of Contents

Chapter 1: Introduction 1

Welcome 1 What’s in this Guide? 2

Chapter 2: Planning Your Wireless Network 4

Network Topology 4 Ad-Hoc versus Infrastructure Mode 4 Network Layout 4

Chapter 3: Getting to Know the Wireless-G Broadband Router with SRX400 6

The Router’s Ports and Reset Button 6 The Router’s LEDs 7

Chapter 4: Connecting the Wireless-G Broadband Router with SRX400 8

Overview 8 Hardware Installation for Connection to Your Broadband Modem 8 Placement Options 9

Chapter 5: Configuring the Wireless-G Broadband Router 10

Overview 10 The Setup Tab - Basic Setup 11 The Setup Tab - DDNS 16 The Setup Tab - MAC Address Clone 17 The Setup Tab - Advanced Routing 18 The Wireless Tab - Basic Wireless Settings 20 The Wireless Tab - Wireless Security 21 The Wireless Tab - Wireless MAC Filter 23 The Wireless Tab - Advanced Wireless Settings 24 The Security Tab - Firewall 26 The Access Restrictions Tab - Internet Access 27 The Applications and Gaming Tab - Port Range Forward 29 The Applications and Gaming Tab - Port Triggering 30 The Applications and Gaming Tab - DMZ 30 The Applications and Gaming Tab - QoS 31 The Administration Tab - Management 34 The Administration Tab - Log 36

Wireless-G Broadband Router with SRX400

The Administration Tab - Diagnostics 37 The Administration Tab - Factory Defaults 38 The Administration Tab - Firmware Upgrade 38 The Administration Tab - Config Management 39 The Status Tab - Router 40 The Status Tab - Local Network 41 The Status Tab - Wireless 42 The Status Tab - System Performance 43

Appendix A: Troubleshooting 45

Common Problems and Solutions 45 Frequently Asked Questions 53

Appendix B: Wireless Security 60

Security Precautions 60 Security Threats Facing Wireless Networks 60

Appendix C: Upgrading Firmware 63 Appendix D: Windows Help 64 Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter 65

Windows 98SE or Me Instructions 65 Windows 2000 or XP Instructions 66 For the Router’s Web-based Utility 66

Appendix F: Glossary 67 Appendix G: Specifications 72 Appendix H: Warranty Information 74 Appendix I: Regulatory Information 75 Appendix J: Contact Information 81

Wireless-G Broadband Router with SRX400

List of Figures

Figure 3-1: The Router’s Side Panel 6 Figure 3-2: The Router’s LEDs 7 Figure 4-1: Connect a PC 8 Figure 4-2: Connect the Modem 8 Figure 4-3: Connect the Power 8 Figure 4-4: Router’s Stand 9 Figure 4-5: Wall-Mount Measurements 9 Figure 5-1: Password Screen 10 Figure 5-2: Setup Tab - Basic Setup 11 Figure 5-3: DHCP Connection Type 11 Figure 5-4: Static IP Connection Type 12 Figure 5-5: PPPoE Connection Type 12 Figure 5-6: PPTP Connection Type 13 Figure 5-7: Telstra BigPond Connection Type 13 Figure 5-8: Optional Settings 14 Figure 5-9: Router IP 14 Figure 5-10: Network Address Server Settings 15 Figure 5-11: Time Setting 15 Figure 5-12: Setup Tab - DDNS 16 Figure 5-13: Setup Tab - MAC Address Clone 17 Figure 5-14: Setup Tab - Advanced Routing 18 Figure 5-15: Setup Tab - Advanced Routing - NAT Mode 18 Figure 5-16: Setup Tab - Advanced Routing - NAT Mode - Routing Table 19 Figure 5-17: Wireless Tab - Basic Wireless Settings 20 Figure 5-18: Wireless Tab - Wireless Security (WPA/WPA Personal) 21 Figure 5-19: Wireless Tab - Wireless Security (WPA/WPA2 Enterprise) 21 Figure 5-20: Wireless Tab - Wireless Security (WEP) 22 Figure 5-21: Wireless Tab - Wireless MAC Filter 23 Figure 5-22: Wireless MAC Filter - Networked Computers 23 Figure 5-23: Wireless Tab - Advanced Wireless Settings 24

Wireless-G Broadband Router with SRX400

Figure 5-24: Security Tab - Firewall 26 Figure 5-25: Access Restrictions Tab - Internet Access 27 Figure 5-26: Internet Policy Summary 27 Figure 5-27: List of PCs 28 Figure 5-28: Port Services 28 Figure 5-29: Applications and Gaming Tab - Port Range Forward 29 Figure 5-30: Applications and Gaming Tab - Port Triggering 30 Figure 5-31: Applications and Gaming Tab - DMZ 30 Figure 5-32: Applications and Gaming Tab - QoS (Add a New Application 31 Figure 5-33: QoS - Voice Device 32 Figure 5-34: QoS - Online Game 32 Figure 5-35: Administration Tab - Management 34 Figure 5-36: Administration Tab - Log 36 Figure 5-37: Administration Tab - Diagnostics 37 Figure 5-38: Administration Tab - Factory Defaults 38 Figure 5-39: Administration Tab - Firmware Upgrade 38 Figure 5-40: Administration Tab - Config Management 39 Figure 5-41: Status Tab - Router 40 Figure 5-42: Status Tab - Local Network 41 Figure 5-43: DHCP Active IP Table 41 Figure 5-44: Status Tab - Wireless 42 Figure 5-45: Status Tab - System Performance 43 Figure C-1: Upgrade Firmware 63 Figure E-1: IP Configuration Screen 65 Figure E-2: MAC Address/Adapter Address 65 Figure E-3: MAC Address/Physical Address 65 Figure E-4: MAC Address Clone 66 Figure E-5: Wireless MAC Filter List 66

Wireless-G Broadband Router with SRX400

Chapter 1: Introduction

Welcome

Thank you for choosing the Linksys Wireless-G Broadband Router with SRX400. 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 SRX400 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 3 times farther than standard Wireless-G.

mbps: one million bits per second; a unit of measurement for data transmission

browser: an application program that provides a way to look at and interact with all the information on the World Wide Web.

With SRX, the farther away you are, the more speed advantage you get, and SRX400 works great with standard Wireless-G and -B equipment, and other flavors of Linksys SRX. But when both ends of the wireless link are SRX400, the router can increase the throughput even more by using twice as much radio band, yielding speeds up to 10 times as fast as standard Wireless-G. But unlike other speed-enhanced technologies, SRX400 can dynamically enable this double-speed mode for SRX400 devices, while still connecting to non-SRX400 wireless devices at their respective fastest speeds. And SRX400 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-touse, 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.

Chapter 1: Introduction Welcome

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.

Wireless-G Broadband Router with SRX400

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 SRX400.

What’s in this Guide?

This user guide covers the steps for setting up and using the Wireless-G Broadband Router with SRX400.

• 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 SRX400 This chapter describes the Router’s physical features.

• Chapter 4: Connecting the Wireless-G Broadband Router with SRX400 This chapter instructs you on how to connect the Router to your network.

• Chapter 5: Configuring the Wireless-G Broadband Router with SRX400 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.

Chapter 1: Introduction What’s in this Guide?

Wireless-G Broadband Router with SRX400

• 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.

Chapter 1: Introduction What’s in this Guide?

Wireless-G Broadband Router with SRX400

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 wirelessequipped computers is limited by the distance and interference directly between them.

network: a series of computers or devices connected for the purpose of data sharing, storage, and/or transmission between users.

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.

Infrastructure: a wireless network that is bridged to a wired network via an access point.

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

access point: a device that allows wirelessequipped computers and other devices to communicate with a wired network. Also used to expand the range of a wireless network.

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.

Chapter 2: Planning Your Wireless Network Network Topology

Wireless-G Broadband Router with SRX400

The Wireless-G Broadband Router is compatible with all 802.11b and 802.11g adapters, such as the notebook adapters for your laptop computers, PCI adapters for your desktop PCs, and USB adapters when you want to enjoy USB connectivity. The Router will also communicate with the Wireless-G PrintServer, as well as 802.11b and 802.11g wireless Ethernet bridges.

When you wish to connect your wireless network with your wired network, you can use the Wireless-G Broadband Router’s four Ethernet ports. To add more ports, any of the Wireless-G Broadband Router's Ethernet ports can be connected to any of Linksys's switches.

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-G Broadband Router with SRX400.

Chapter 2: Planning Your Wireless Network Network Layout

Wireless-G Broadband Router with SRX400

Chapter 3: Getting to Know the Wireless-G Broadband Router with SRX400

The Router’s Ports and Reset Button

The Router's ports and Reset button are located on one of the side panels.

Figure 3-1: The Router’s Side Panel

ETHERNET 1, 2, 3, 4 Color-coded yellow, these ports connect the Router to PCs and other Ethernet devices on your

network.

INTERNET Color-coded blue, the INTERNET port is where you will connect your broadband Internet

connection.

Reset There are two ways to reset the Router's factory defaults. Either press the Reset button, which

is color-coded red, for approximately five seconds, using a object with a sharp point, such as a ball-point pen, or restore the default settings from the Administration tab - Factory Defaults in the Router's Web-based Utility.

Power Color-coded black, the Power port is where you will connect the power adapter.

port: the connection point on a computer or networking device used for plugging in cables or adapters

broadband: an always-on, fast Internet connection

IMPORTANT: Resetting the Router will erase all of your settings (wireless security, network settings, etc.) and replace them with the factory defaults. Do not reset the Router if you want to retain these settings.

Chapter 3: Getting to Know the Wireless-G Broadband Router with SRX400 The Router’s Ports and Reset Button

Wireless-G Broadband Router with SRX400

The Router’s LEDs

The Router’s LEDs, which displays information about network activity, are located on another side panel.

Figure 3-2: The Router’s LEDs

POWER Green. The POWER LED lights up and will stay on while the Router is powered on. When the

Router goes through its self-diagnostic mode during every boot-up, this LED will flash. When the diagnostic is complete, the LED will be solidly lit.

ETHERNET 1, 2, 3, 4 Green. These numbered LEDs, corresponding with the numbered ports on the Router’s back

panel, serve two purposes. If the LED is continuously lit, the Router is successfully connected to a device through that port. If the LED is flashing, that port is actively transmitting or receiving data.

WIRELESS Green. The WIRELESS LED lights up whenever there is a successful wireless connection. If the

LED is flashing, the Router is actively sending or receiving data over the wireless network.

DMZ Green. The DMZ LED indicates when the DMZ function is being used. This LED will remain lit

as long as DMZ is enabled.

INTERNET Green. The INTERNET LED lights up when there is a connection made through the Internet

port. If the LED is flashing, that port is actively transmitting or receiving data.

Chapter 3: Getting to Know the Wireless-G Broadband Router with SRX400 The Router’s LEDs

dmz: removes the Router's firewall protection from one PC, allowing it to be “seen” from the Internet

Wireless-G Broadband Router with SRX400

Chapter 4: Connecting the Wireless-G Broadband Router with SRX400

Overview

Linksys recommends using the Setup Wizard on the Setup CD-ROM for first-time installation of the Router. For advanced users, you may follow the instructions in this chapter, and then configure the Router through its Webbased Utility (refer to “Chapter 5: Configuring the Wireless-G Broadband Router”).

Hardware Installation for Connection to Your Broadband Modem

1. Power down your network devices.

2. 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 mobile stations.

3. Fix the direction of the antennas. Try to place the Router in a position that will best cover your wireless network. Normally, the higher you place the antennas, the better the performance will be.

Figure 4-1: Connect a PC

4. Connect your network PCs or Ethernet devices to the Router’s yellow Ethernet ports using standard Ethernet network cabling.

5. Connect a standard Ethernet network cable to the Router’s blue Internet port. Then, connect the other end of the Ethernet cable to your cable or DSL broadband modem.

6. Connect the AC power adapter to the Router's Power port and the other end to an electrical outlet.

IMPORTANT: Make sure that you use the power adapter that is supplied with the Router. Use of a different power adapter could damage the Router.

Proceed to the next section, “Placement Options.”

Chapter 4: Connecting the Wireless-G Broadband Router with SRX400 Overview

Figure 4-2: Connect the Modem

Figure 4-3: Connect the Power

Wireless-G Broadband Router with SRX400

Placement Options

There are three ways to place the Router. The first way is to place it horizontally on a surface, so it sits on its four rubber feet. The second way is to stand the Router vertically on a surface (this uses a stand). The third way is to mount it on a wall. The second and third options are explained in further detail below.

Stand Option

1. Line up the center of the Router’s stand with the center of the Router’s labeled edge.

2. Insert the Router into the stand.

Proceed to “Chapter 5: Configuring the Wireless-G Broadband Router.”

There are three ways to place the Router. The first way is to place it horizontally on a surface, so it sits on its four rubber feet. The second way is to stand the Router vertically on a surface (this uses an optional stand). The third way is to mount it on a wall. The second and third options are explained in further detail below.

Wall-Mount Option

The Router has two wall-mount slots on its back panel.

1. Determine where you want to mount the Router.

Figure 4-4: Router’s Stand

60 mm

(2.36 inches)

2. Drill two holes into the wall. Make sure the holes are 60 mm (2.36 inches) apart.

3. Insert a screw into each hole, and leave 5 mm (0.2 inches) of its head exposed.

4. Maneuver the Router so the wall-mount slots line up with the two screws.

5. Place the wall-mount slots over the screws and slide the Router down until the screws fit snugly into the wallmount slots.

Proceed to “Chapter 5: Configuring the Wireless-G Broadband Router.”

Chapter 4: Connecting the Wireless-G Broadband Router with SRX400 Placement Options

Figure 4-5: Wall-Mount Measurements

Wireless-G Broadband Router with SRX400

Chapter 5: Configuring the Wireless-G Broadband Router

Overview

You should always use the Setup CD-ROM when first installing the Router. If you do not wish to run the Setup Wizard on the Setup CD-ROM, 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 in 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 will use these two screens of the Utility:

• Basic Setup. On the Basic Setup screen, enter the settings provided by your ISP.

• 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.

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.

To access the Web-based Utility, launch Internet Explorer or Netscape Navigator, and enter the Router’s default IP address, 192.168.1.1, in the Address field. Then, press Enter.

A password request page will appear. (Non-Windows XP users will see a similar screen.) Leave the User Name field blank. The first time you open the Web-based Utility, use the default password admin. (You can set a new password from the Administration tab’s Management screen.) Click the OK button to continue.

NOTE: When first installing the Router, you should use the Setup Wizard on the Setup CD-ROM. If you want to configure advanced settings, use this chapter to learn about the Web-based Utility.

HAVE YOU: Enabled TCP/IP on your PCs? PCs communicate over the network with this protocol. Refer to “Appendix D: Windows Help” for more information on TCP/IP.

isp: your internet provider

Chapter 5: Configuring the Wireless-G Broadband Router Overview

Figure 5-1: Password Screen

Wireless-G Broadband Router with SRX400

The Setup Tab - Basic Setup

The first screen that appears displays the Setup tab. This allows you to change the Router's general settings. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Internet Setup

The Internet Setup section configures the Router to your Internet connection. Most of this information can be obtained through your ISP.

Internet Connection Type

Choose the type of Internet connection your ISP provides from the drop-down menu.

• Automatic Configuration - DHCP. By default, the Router’s Internet Connection Type is set to Automatic Configuration - DHCP, which should be kept only if your ISP supports DHCP or you are connecting through a dynamic IP address.

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup

Figure 5-2: Setup Tab - Basic Setup

Figure 5-3: DHCP Connection Type

Wireless-G Broadband Router with SRX400

• Static IP. If you are required to use a permanent IP address to connect to the Internet, select Static IP.

Internet IP Address. This is the Router’s IP address, 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 users on the Internet (including your ISP). Your ISP will provide you with the Subnet Mask.

Gateway. Your ISP will provide you with the Gateway Address, which is the ISP server’s IP address.

Static 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. If you are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoE. If they do, you will have to enable PPPoE.

User Name and Password. Enter the User Name and Password provided by your ISP.

Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has

been inactive for a specified 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. If you wish to activate Connect on Demand, click the radio button. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates.

Keep Alive Option: Redial Period. If you select this option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish your connection. To use this option, click the radio button next to Keep Alive. In the Redial Period field, you specify how often you want the Router to check the Internet connection. The default Redial Period is 30 seconds.

Figure 5-4: Static IP Connection Type

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

Figure 5-5: PPPoE Connection Type

pppoe: a type of broadband connection that provides authentication (username and password) in addition to data transport

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup

Wireless-G Broadband Router with SRX400

• PPTP. Point-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe only.

Specify Internet IP Address. This is the Router’s IP address, as 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 users on the Internet (including your ISP). Your ISP will provide you with the Subnet Mask.

Gateway. Your ISP will provide you with the Gateway Address.

User Name and Password. Enter the User Name and Password provided by your ISP.

Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has

Figure 5-6: PPTP Connection Type

• Telstra BigPond. Telstra BigPond is a service that applies to connections in Australia only.

User Name and Password. Enter the User Name and Password provided by your ISP.

Heart Beat Server. 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.

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup

Figure 5-7: Telstra BigPond Connection Type

Wireless-G Broadband Router with SRX400

Optional Settings

Some of these settings may be required by your ISP. Verify with your ISP before making any changes.

Router Name. In this field, you can type a name of up to 39 characters to represent the Router.

Host Name and Domain Name. These fields allow you to supply a host and domain name for the Router. Some

ISPs, usually cable 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. MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet transmission. The default setting, Manual, allows you to enter the largest packet size that will be transmitted. The recommended size, entered in the Size field, is 1492. You should leave this value in the 1200 to 1500 range. To have the Router select the best MTU for your Internet connection, select Auto.

Network Setup

The Network Setup section changes the settings on the network connected to the Router’s Ethernet ports. Wireless setup is performed through the Wireless tab.

Router IP

This presents both the Router’s IP Address and Subnet Mask as seen by your local network.

Figure 5-8: Optional Settings

packet: a unit of data sent over a network

Figure 5-9: Router IP

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup

Wireless-G Broadband Router with SRX400

Network Address Server Settings (DHCP)

The settings allow you to configure the Router’s Dynamic Host Configuration Protocol (DHCP) server function. The Router can be used as a DHCP server for your network. A DHCP server automatically assigns an IP address to each computer on your network. If you choose to enable the Router’s DHCP server option, you must configure all of your network PCs to connect to a DHCP server (the Router), and make sure there is no other DHCP server on your network.

DHCP Server. DHCP is enabled by factory default. If you already have a DHCP server on your network, or you don’t want a DHCP server, then click the Disable radio button (no other DHCP features will be available).

Starting IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. Because the Router’s default IP address is 192.168.1.1, the Starting IP Address must be 192.168.1.2 or greater, but smaller than 192.168.1.253. The default Starting IP Address is 192.168.1.100.

Maximum Number of DHCP Users. 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 time is up, the user will be automatically assigned a new dynamic IP address. The default is 0 minutes, which means one day.

IP Address Range. The range of available IP addresses is displayed here.

Static DNS 1-2. 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. If you wish to use another, type that IP Address in one of these fields.

Time Setting

Change the time zone in which your network functions from this pull-down menu. (You can even automatically adjust for daylight savings time.) Then, check Automatically adjust clock for daylight saving changes.

Figure 5-10: Network Address Server Settings

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup

Figure 5-11: Time Setting

Wireless-G Broadband Router with SRX400

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 www.dyndns.org, a DDNS service provider.

DDNS

DDNS Service. To use DDNS, select DynDNS.org. If you do not want to use DDNS, keep the default, Disable.

User Name. Enter the User Name for your DDNS account

Password. Enter the Password for your DDNS account.

Host Name. This is the DDNS URL assigned by the DDNS service.

Internet IP Address. This displays the Router’s current IP Address as seen on the Internet.

Status. This displays the status of the DDNS connection.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Figure 5-12: Setup Tab - DDNS

ddns: allows the hosting of a website, FTP server, or e-mail server with a fixed domain name (e.g., www.xyz.com) on a dynamic IP address connection type.

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - DDNS

Wireless-G Broadband Router with SRX400

The Setup Tab - MAC Address Clone

A MAC address is a 12-digit code assigned to a unique piece of hardware for identification. 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

Enable/Disable. To have the MAC Address cloned, click the radio button beside Enable.

User Defined Entry. Enter the MAC Address registered with your ISP here.

Clone Your PC’s MAC. Clicking this button will clone the MAC address of your registered PC.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Figure 5-13: Setup Tab - MAC Address Clone

mac address: the unique address that a manufacturer assigns to each networking device.

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - MAC Address Clone

Wireless-G Broadband Router with SRX400

The Setup Tab - Advanced Routing

This tab is used to set up the Router’s advanced functions. NAT Mode allows you to select the type(s) of advanced functions you use. Static Routing sets up a fixed route to another network destination.

Advanced Routing

NAT Mode

Select the mode in which this Router will function. If this Router is hosting your network’s connection to the Internet, select Enable. If another Router exists on your network, select Disable, which will disable the DHCP server on this Router.

Dynamic Routing

With Dynamic Routing you can enable the Router to automatically adjust to physical changes in the network’s layout. The Router, using the RIP protocol, determines the network packets’ route based on the fewest number of hops between the source and the destination. The RIP protocol regularly broadcasts routing information to other routers on the network.

RIP. To use dynamic routing, click the Enable radio button.

Receive RIP Version. To use dynamic routing for reception of network data, select the protocol you want: Both RIP v1 and v2, RIPv1, or RIPv2. If you do not want to use this feature, select None.

Figure 5-14: Setup Tab - Advanced Routing

default gateway: a device that forwards Internet traffic from your local area network

Transmit RIP Version. To use dynamic routing for transmission of network data, select the protocol you want: Both RIP v1 and v2, RIPv1, or RIPv2. If you do not want to use this feature, select None.

Static Routing

To set up a static route between the Router and another network, select a number from the Select set number drop-down list. (A static route is a pre-determined pathway that network information must travel to reach a specific host or network.) Enter the information described below to set up a new static route. (Click the Delete

This Entry button to delete a static route.)

Enter Route Name. Enter a name for the Route here, using a maximum of 25 alphanumeric characters.

Destination LAN IP. The Destination LAN IP is the address of the remote network or host to which you want to

assign a static route.

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Advanced Routing

Figure 5-15: Setup Tab - Advanced Routing - NAT Mode

Wireless-G Broadband Router with SRX400

Subnet Mask. The Subnet Mask determines which portion of a Destination LAN 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. This interface tells you whether the Destination IP Address is on the LAN & Wireless (Ethernet and wireless networks), the WAN (Internet), or Loopback (a dummy network in which one PC acts like a network— necessary for certain software programs).

Click the Show Routing Table button to view the Static Routes you’ve already set up.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel

Changes to cancel your changes.

Figure 5-16: Setup Tab - Advanced Routing - NAT

Mode - Routing Table

Chapter 5: Configuring the Wireless-G Broadband Router The Setup Tab - Advanced Routing

Wireless-G Broadband Router with SRX400

The Wireless Tab - Basic Wireless Settings

The basic settings for wireless networking are set on this screen.

Wireless Network

Wireless Network Mode. From this drop-down menu, you can select the wireless standards running on your network. If you have both 802.11g and 802.11b devices in your network, keep the default setting, Mixed. If you have only 802.11g devices, select G-Only. If you do not have any 802.11g and 802.11b devices in your network, select Disable. SRX400 works automatically with Mixed or G-Only mode, providing the added bonus of increased speed across your entire network and even greater speed when using SRX-enabled products only.

Wireless 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.

Wireless Channel. Select the appropriate channel from the list provided to correspond with your network settings. All devices in your wireless network must be broadcast on the same channel in order to function correctly and to avoid interference with other wireless items in your home. In most cases, you should keep the default, Auto, so the Router will automatically use the channel that has the least activity.

Adaptive Channel Expansion. This feature increases the RF (radio frequency) bandwidth, so data rates are increased. The existing 20 MHz bandwidth is increased to up to 40 MHz by combining adjacent channels. In most cases, keep the default setting, Auto, so the Router automatically adjusts the increase depending on the channels available.

Figure 5-17: Wireless Tab - Basic Wireless Settings

Wireless 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, Enable. To be more secure and not broadcast the Router's SSID, then select Disable.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Chapter 5: Configuring the Wireless-G Broadband Router The Wireless Tab - Basic Wireless Settings

Wireless-G Broadband Router with SRX400

The Wireless Tab - Wireless Security

The Wireless Security settings configure the security of your wireless network. There are five wireless security mode options supported by the Router: WPA-Personal, WPA2 Personal, WPA Enterprise, WPA2 Enterprise, and WEP. (WPA stands for Wi-Fi Protected Access, WEP stands for Wired Equivalent Privacy, and WPA Enterprise uses a RADIUS (Remote Authentication Dial-In User Service) server. WPA is a security standard stronger than WEP encryption. WPA2 is stronger than WPA. These options are briefly discussed here. For detailed instructions on configuring wireless security for the Router, turn to “Appendix B: Wireless Security.”

Wireless Security

Select WPA/WPA2 Personal, WPA/WPA2 Enterprise, or WEP from the Security Mode drop-down menu. Then proceed to the appropriate instructions. If you do not want to enable wireless security, select Disable.

IMPORTANT: If you are using wireless security, always remember that each device in your wireless network MUST use the same wireless security method and shared key, or else the network will not function correctly. You may mix between WPA and WPA2 Personal or WPA and WPA2 Enterprise, but not between Personal and Enterprise, Personal and WEP, or Enterprise and WEP.

WPA/WPA2 Personal. Two WPA Personal options are available. To select WPA or WPA2 Personal, select Enable from the drop-down menu next to the desired option. WPA/WPA2 Personal gives you two encryption methods, TKIP and AES, with dynamic encryption keys. Select the type of algorithm, TKIP or AES. Enter a Personal Key of 8-63 characters. Then enter a Group Key Renewal period, which instructs the Router how often it should change the encryption keys.

WPA/WPA2 Enterprise. This option features WPA/WPA2 used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) Two WPA Enterprise options are available. To select WPA or WPA2 Enterprise, select Enable from the drop-down menu next to the desired option. Then, select the type of WPA algorithm you want to use, TKIP or AES. Enter the RADIUS server’s IP Address and port number, along with an Enterprise Key shared between the Router and the server. Last, enter a Key Renewal Timeout, which instructs the Router how often it should change the encryption keys.

Figure 5-18: Wireless Tab - Wireless Security (WPA/WPA

Personal)

encryption: encoding data transmitted in a network

Figure 5-19: Wireless Tab - Wireless Security

(WPA/WPA2 Enterprise)

Chapter 5: Configuring the Wireless-G Broadband Router The Wireless Tab - Wireless Security

+ 60 hidden pages