Linksys WRT54G3G-VN User Manual

2,4

WIRELESS

GHz

802.11g

Wireless-G

Router for Mobile Broadband

User Guide

Model No.

WRT54G3G-VN

Wireless-G Router for Mobile Broadband

Copyright and Trademarks

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 © 2007 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 Router for Mobile
Broadband 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 Router
for Mobile Broadband.

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

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

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 numbers and descriptions can also be found in the “List of Figures” section in the “Table of Contents”.

WRT54G3G-VN-UG 70329 BW

Figure 0-1: Sample Figure Description

Wireless-G Router for Mobile Broadband

Table of Contents

Chapter 1: Introduction 1

Welcome 1
What’s in this User 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 Router for Mobile Broadband 6

The Router’s Ports 6
The Router’s LEDs 7
The Router’s Data Card Slot 8

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband 9

Overview 9
Hardware Installation for Use of the Mobile Broadband Service Only 9
Hardware Installation for Connection to Your Broadband Modem 11
Hardware Installation for Connection to Another Router 13
Placement Options 15

Chapter 5: Configuring the Wireless-G Router for Mobile Broadband 17

Overview 17
The Setup Tab - Basic Setup 18
The Setup Tab - Mobile Network 23
The Setup Tab - DDNS 24
The Setup Tab - MAC Address Clone 25
The Setup Tab - Advanced Routing 26
The Wireless Tab - Basic Wireless Settings 27
The Wireless Tab - Wireless Security 28
The Wireless Tab - Wireless MAC Filter 31
The Wireless Tab - Advanced Wireless Settings 32
The Security Tab - Firewall 34
The Security Tab - VPN Passthrough 35
The Access Restrictions Tab - Internet Access 35
The Applications and Gaming Tab - Port Range Forward 37

Wireless-G Router for Mobile Broadband

The Applications & Gaming Tab - Port Triggering 38
The Applications and Gaming Tab - DMZ 39
The Applications and Gaming Tab - QoS 39
The Administration Tab - Management 41
The Administration Tab - Log 42
The Administration Tab - Diagnostics 43
The Administration Tab - Factory Defaults 44
The Administration Tab - Firmware Upgrade 44
The Administration Tab - Config Management 44
The Status Tab - Mobile Network 45
The Status Tab - Router 46
The Status Tab - Local Network 47
The Status Tab - Wireless 48

Appendix A: Troubleshooting 49

Common Problems and Solutions 49
Frequently Asked Questions 56

Appendix B: Wireless Security 64

Security Precautions 64
Security Threats Facing Wireless Networks 64

Appendix C: Upgrading Firmware 67
Appendix D: Windows Help 68
Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter 69

Windows 2000 or XP Instructions 69
For the Router’s Web-based Utility 69

Appendix F: Glossary 71
Appendix G: Specifications 76
Appendix H: Warranty Information 78
Appendix I: Regulatory Information 79

Wireless-G Router for Mobile Broadband

List of Figures

Figure 3-1: The Router’s Ports 6
Figure 3-2: The Router’s Front Panel 6
Figure 3-3: The Router’s LEDs 7
Figure 3-4: The Router’s Data Card Slot 8
Figure 4-1: Connect Your Computer 10
Figure 4-2: Connect the Power 10
Figure 4-3: Connect the Broadband Modem 11
Figure 4-4: Connect Your Computer 12
Figure 4-5: Connect the Power 12
Figure 4-6: Diagram for Connection to Another Router 13
Figure 4-7: Connect Another Router 13
Figure 4-8: Connect Your Computer 14
Figure 4-9: Connect the Power 14
Figure 4-10: Stand Attached to the Router 15
Figure 4-11: Measurement between Wall-Mount Slots 16
Figure 5-1: Password Screen 17
Figure 5-2: Setup Tab - Basic Setup 18
Figure 5-3: DHCP Connection Type 18
Figure 5-4: Static IP Connection Type 19
Figure 5-5: PPPoE Connection Type 19
Figure 5-6: PPTP Connection Type 19
Figure 5-7: L2TP Connection Type 20
Figure 5-8: Optional Settings 20
Figure 5-9: Router IP 21
Figure 5-10: Network Address Server Settings 21
Figure 5-11: Time Setting 22
Figure 5-12: Setup Tab - Mobile Network 23
Figure 5-13: Setup Tab - DDNS (DynDNS.org) 24
Figure 5-14: Setup Tab - DDNS (TZO.org) 24
Figure 5-15: Setup Tab - MAC Address Clone 25
Figure 5-16: Setup Tab - Advanced Routing (Gateway) 26

Wireless-G Router for Mobile Broadband

Figure 5-17: Setup Tab - Advanced Routing (Router) 26
Figure 5-18: Wireless Tab - Basic Wireless Settings 27
Figure 5-19: Wireless Tab - Wireless Security (WPA2 Personal) 28
Figure 5-20: Wireless Tab - Wireless Security (WPA Personal - TKIP) 28
Figure 5-21: Wireless Tab - Wireless Security (WPA Personal - AES) 28
Figure 5-22: Wireless Tab - Wireless Security (WPA2 Enterprise) 29
Figure 5-23: Wireless Tab - Wireless Security (WPA Enterprise - TKIP) 29
Figure 5-24: Wireless Tab - Wireless Security (WPA Enterprise - AES) 29
Figure 5-25: Wireless Tab - Wireless Security (RADIUS) 30
Figure 5-26: Wireless Tab - Wireless Security (WEP) 30
Figure 5-27: Wireless Tab - Wireless MAC Filter 31
Figure 5-28: MAC Address Filter List 31
Figure 5-29: Wireless Tab - Advanced Wireless Settings 32
Figure 5-30: Security Tab - Firewall 34
Figure 5-31: Security Tab - VPN Passthrough 35
Figure 5-32: Access Restrictions Tab - Internet Access 35
Figure 5-33: Internet Policy Summary 36
Figure 5-34: List of PCs 36
Figure 5-35: Port Services 36
Figure 5-36: Applications and Gaming Tab - Port Range Forward 37
Figure 5-37: Applications and Gaming Tab - Port Triggering 38
Figure 5-38: Applications and Gaming Tab - DMZ 39
Figure 5-39: Applications and Gaming Tab - QoS 39
Figure 5-40: Administration Tab - Management 41
Figure 5-41: Administration Tab - Log 42
Figure 5-42: Administration Tab - Diagnostics 43
Figure 5-43: The Ping Test 43
Figure 5-44: The Traceroute Test 43
Figure 5-45: Administration Tab - Factory Defaults 44
Figure 5-46: Administration Tab - Firmware Upgrade 44
Figure 5-47: Administration Tab - Config Management 44
Figure 5-48: Status Tab - Mobile Network 45
Figure 5-49: Status Tab - Router 46
Figure 5-50: Status Tab - Local Network 47

Wireless-G Router for Mobile Broadband

Figure 5-51: Status Tab - Wireless 48
Figure C-1: Upgrade Firmware 67
Figure E-1: IP Configuration Screen 69
Figure E-2: MAC Address/Adapter Address 69
Figure E-3: MAC Address/Physical Address 69
Figure E-4: MAC Address Filter List 70
Figure E-5: MAC Address Clone 70

Wireless-G Router for Mobile Broadband

Chapter 1: Introduction

Welcome

Thank you for choosing the Linksys Wireless-G Router for Mobile Broadband. The Wireless-G Router for
Mobile Broadband will allow you to network wirelessly better than ever, sharing Internet access, files and fun,
easily and securely.

How does the Wireless-G Router for Mobile Broadband do all of this? A router is a device that allows access to an
Internet connection over a network. With the Wireless-G Router for Mobile Broadband, you can access the
Internet through either your mobile broadband service (requires a mobile broadband data card, available
separately), or you can use a cable or DSL modem for broadband service. Plus, this access can be shared over
the four switched ports or via the wireless broadcast at up to 54Mbps for Wireless-G or up to 11Mbps for
Wireless-B.

Use the WPA or WPA2 standard to secure your wireless network while the whole network is protected through a
Stateful Packet Inspection (SPI) firewall and Network Address Translation (NAT) technology. Run the Setup Wizard
and it will guide you through the steps. You can also access the Router’s features 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 Wireless-G Router for Mobile Broadband bridges wireless networks
of both 802.11b and 802.11g standards and wired networks, allowing them to communicate with each other.

wpa (wi-fi protected access): a wireless security
protocol using TKIP (Temporal Key Integrity Protocol)
encryption, which can be used in conjunction with a
RADIUS server.

wpa2 (wi-fi protected access2: a wireless security protocol
using TKIP (Temporal Key Integrity Protocol) encryption and
AES (Advanced Encryption System) with dynamic encryption
keys, which can be used in conjunction with a RADIUS server.

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.

nat (network address translation): NAT technology
translates IP addresses of a local area network to a
different IP address for the Internet.

lan (local area network): The computers and
networking products that make up the network in
your home or office.

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 Router for Mobile Broadband protects your networks
from unauthorized and unwelcome users.

Chapter 1: Introduction
Welcome

1

Wireless-G Router for Mobile Broadband

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
Wireless-G Router for Mobile Broadband, 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 Router for Mobile Broadband.

What’s in this User Guide?

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

• 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 Router for Mobile Broadband
This chapter describes the physical features of the Router.

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

• Chapter 5: Configuring the Wireless-G Router for Mobile Broadband
This chapter explains how to use the Web-based Utility to configure the settings on the Wireless-G Router for
Mobile Broadband.

• Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the Wireless-G Router for Mobile Broadband.

• 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.

Chapter 1: Introduction
What’s in this User Guide?

2

Wireless-G Router for Mobile Broadband

• 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.

• 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.

Chapter 1: Introduction
What’s in this User Guide?

3

Wireless-G Router for Mobile Broadband

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

ssid (service set identifier): your wireless network’s name.

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-G Router for Mobile Broadband, 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 Layout

The Wireless-G Router for Mobile Broadband has been specifically designed for use with both your 802.11b and

802.11g products. It is compatible with all 802.11g and 802.11b adapters, such as the notebook adapters for your

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

ad-hoc: a group of wireless devices
communicating directly to each other (peer-to­peer) without the use of an access point.

Chapter 2: Planning Your Wireless Network
Network Topology

4

Wireless-G Router for Mobile Broadband

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 PrintServer and Wireless Ethernet Bridges.

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

Chapter 2: Planning Your Wireless Network
Network Layout

5

Wireless-G Router for Mobile Broadband

Chapter 3: Getting to Know the Wireless-G Router for Mobile Broadband

The Router’s Ports

The Router's ports and Reset button are located on the side panel with the antenna port.

Figure 3-1: The Router’s Ports

Antenna The antenna port is where you will attach the Router’s antenna.

Internet The Internet port is where you will connect your broadband Internet connection, if you are

using broadband WAN service.

Ethernet
1, 2, 3, 4 These ports (1, 2, 3, 4) connect the Router to your PCs and other Ethernet network devices.

Security Bracket The bracket labeled “RESET” clips onto the Router. It covers the Reset button and the security

slot on the Router’s front panel. You can remove the security bracket to access the Reset
button. To protect the Router from theft, you can attach a lock to the Router using the security
slot and bracket.

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

approximately five seconds, or restore the defaults from the Administration tab - Factory
Defaults tab in the Router's Web-based Utility.

Power The Power port is where you will connect the power adapter.

Chapter 3: Getting to Know the Wireless-G Router for Mobile Broadband
The Router’s Ports

Security
Bracket

Figure 3-2: The Router’s Front Panel

IMPORTANT: Resetting the Router will erase

all of your settings (Internet connection,
wireless security, and other settings) and
replace them with the factory defaults. Do not
reset the Router if you want to retain these
settings.

6

Wireless-G Router for Mobile Broadband

The Router’s LEDs

The Router’s LEDs are located on the Router’s other side panel.

Figure 3-3: The Router’s LEDs

Data Card Button This button allows you to connect to and disconnect from the mobile network (you can also

connect and disconnect using the Basic Setup tab of the Router’s Web-based Utility).

POWER Green. The POWER LED lights up and will stay on when 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. A flashing LED indicates network activity over that port.

DMZ Green. The DMZ LED lights up and will remain lit while the Router uses its DMZ function.

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.

DATA CARD Blue.The DATA CARD LED flashes as the Router connects to the mobile network. It is solidly lit

when the connection is established.

The LED quickly flashes if the Router does not have a connection to the mobile network. A data
card must be inserted into the Router when you press the Data Card Connect/Disconnect
button.

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

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

7

Wireless-G Router for Mobile Broadband

The Router’s Data Card Slot

The Router’s Data Card slot is located on the Router’s top panel.

Figure 3-4: The Router’s Data Card Slot

Data Card Slot Insert the mobile broadband data card (available separately) into this slot if the Router will

connect to a mobile broadband service.

Chapter 3: Getting to Know the Wireless-G Router for Mobile Broadband
The Router’s Data Card Slot

8

Wireless-G Router for Mobile Broadband

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband

Overview

This chapter includes three sets of instructions. Follow the instructions for your configuration.

• If the Router will use the mobile broadband service only, follow the instructions in “Hardware Installation for
Use of the Mobile Broadband Service.”

• If the Router will be the only router in your network and you have a broadband modem, follow the instructions
in “Hardware Installation for Connection to Your Broadband Modem.”

• If you want to install the Wireless-G Router for Mobile Broadband behind another router in your network, then
follow the instructions in “Hardware Installation for Connection to Another Router.”

Hardware Installation for Use of the Mobile Broadband Service Only

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. Attach the antenna and fix its direction. Try to place the Router in a position that will best cover your wireless
network. Normally, the higher you place the antenna, the better the performance will be.

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband
Overview

9

Wireless-G Router for Mobile Broadband

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

Figure 4-1: Connect Your Computer

5. Connect the power adapter to the Router's Power port, and plug the other end into an electrical outlet. Only
use the power adapter supplied with the Router. Use of a different adapter may result in product damage.

Figure 4-2: Connect the Power

Proceed to the section at the end of this chapter, “Placement Options.”

IMPORTANT: Make sure you use the power

adapter that is supplied with the Router. Use of a
different power adapter could damage the Router.

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband
Hardware Installation for Use of the Mobile Broadband Service Only

10

Wireless-G Router for Mobile Broadband

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. Attach the antenna and fix its direction. Try to place the Router in a position that will best cover your wireless
network. Normally, the higher you place the antenna, the better the performance will be.

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

Figure 4-3: Connect the Broadband Modem

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband
Hardware Installation for Connection to Your Broadband Modem

11

Wireless-G Router for Mobile Broadband

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

6. Connect the power adapter to the Router's Power port, and plug the other end into an electrical outlet. Only
use the power adapter supplied with the Router. Use of a different adapter may result in product damage.

Proceed to the section at the end of this chapter, “Placement Options.”

Figure 4-4: Connect Your Computer

IMPORTANT: Make sure you use the power

adapter that is supplied with the Router. Use of a
different power adapter could damage the Router.

Figure 4-5: Connect the Power

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband
Hardware Installation for Connection to Your Broadband Modem

12

Wireless-G Router for Mobile Broadband

Hardware Installation for Connection to Another Router

Before you install the Wireless-G Router for Mobile Broadband, you will need to check if the default IP address of
the other Router is 192.168.1.1. If so, there will be an IP address conflict with the new Router. Follow the
instructions below to change the default IP address of the existing Router to 192.168.2.1.

NOTE: Steps 1-4 are instructions for a typical Linksys router; however, if you are using
a non-Linksys router, refer to the other router’s documentation for instructions on how
to change its local IP address to 192.168.2.1.

Internet

Broadband

Modem

First, make sure the Router is NOT connected to your network. Then follow these instructions:

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

2. A password request page will appear. Leave the User Name field blank. In the Password field, enter the
password you have set (the default password is admin). Then click the OK button.

3. The first screen that appears will display the Setup tab. In the Network Setup section, there is a setting
called Local IP Address, which is set to 192.168.1.1. Change this to 192.168.2.1.

Wireless-G Router

4. Click the Save Settings button to save your change, and then exit the Web-based Utility.

5. Power down your network devices. Now you will begin the hardware installation of Router.

6. 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.

7. Attach the antenna and fix its direction. Try to place the Router in a position that will best cover your
wireless network. Normally, the higher you place the antenna, the better the performance will be.

8. Connect a standard Ethernet network cable to the Router’s Internet port. Then, connect the other end of the
Ethernet cable to one of the numbered Ethernet ports on your other router.

Router

for Mobile

Broadband

Multiple PCs

Figure 4-6: Diagram for Connection to Another Router

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband
Hardware Installation for Connection to Another Router

Figure 4-7: Connect Another Router

13

Wireless-G Router for Mobile Broadband

9. Decide which network computers or Ethernet devices you want to connect to the Router.

Disconnect the selected computers or devices from the other router, and then connect them to the Router’s
numbered ports using standard Ethernet network cabling.

Figure 4-8: Connect Your Computer

10. Connect the power adapter to the Router's Power port, and plug the other end into an electrical outlet. Only
use the power adapter supplied with the Router. Use of a different adapter may result in product damage.

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.

Figure 4-9: Connect the Power

Proceed to the next section, “Placement Options.”

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband
Hardware Installation for Connection to Another Router

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Wireless-G Router for Mobile Broadband

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. 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.

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband
Placement Options

Figure 4-10: Stand Attached to the Router

15

Wireless-G Router for Mobile Broadband

Wall-Mount Option

The Router has four wall-mount slots on its bottom panel. The distance between two adjacent slots is
68 mm (2.68 inches).

Before you begin, make sure you have two screws that are size #4—this indicates a diameter measurement of

2.845 mm (0.112 inches).

1. Determine where you want to mount the Router.

2. Drill two holes into the wall. Make sure adjacent holes are 68 mm (2.68 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 top 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.

68 mm

(2,68 inches)

Figure 4-11: Measurement between Wall-Mount Slots

Chapter 4: Connecting the Wireless-G Router for Mobile Broadband
Placement Options

16

Wireless-G Router for Mobile Broadband

Chapter 5: Configuring the Wireless-G Router for Mobile Broadband

NOTE: For first-time installation, Linksys

Overview

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 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 Internet Service Provider (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.

recommends using 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.

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. 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.) Then click the OK button.

Chapter 5: Configuring the Wireless-G Router for Mobile Broadband
Overview

Figure 5-1: Password Screen

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Wireless-G Router for Mobile Broadband

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.

Mobile Network Setup

Configure the mobile network settings for the Router in this section.

Mobile Connection. This button enables you to connect to and disconnect from the mobile network through the
Web-based Utility (you can also connect and disconnect using the hardware button on the Router). It will also
indicate the status of the Router’s mobile broadband data card connection.

Status

Network Name. Displayed here is the name of the mobile network the Router is using.

Signal Strength. This indicates the strength of the mobile broadband signal that the Router is receiving.

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.

• 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 Router for Mobile Broadband
The Setup Tab - Basic Setup

Figure 5-2: Setup Tab - Basic Setup

Figure 5-3: DHCP Connection Type

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Wireless-G Router for Mobile Broadband

• 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.

DNS. 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.

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

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.

Figure 5-4: Static IP Connection Type

Static IP address: a fixed address
assigned to a computer or device
connected to a network.

Figure 5-5: PPPoE Connection Type

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.

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

Figure 5-6: PPTP Connection Type

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Wireless-G Router for Mobile Broadband

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.

• L2TP. Layer 2 Tunneling Protocol (L2TP) is a service that tunnels Point-to-Point Protocol (PPP) across the

Internet. It is used mostly in European countries.

Server IP Address. Enter the IP address of your ISP’s server. This is provided by your ISP.

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.

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.

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

Figure 5-7: L2TP Connection Type

Figure 5-8: Optional Settings

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Wireless-G Router for Mobile Broadband

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 network.

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).

Figure 5-9: Router IP

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.

Static DNS (1-3). 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. You can type up to three DNS Server IP Addresses here. The
Router will use these for quicker access to functioning DNS servers.

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

Figure 5-10: Network Address Server Settings

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