Linksys WRT54G3G-AT Manual de usuario

Model No.

Router for Mobile Broadband

Wireless-G

WRT54G3G-AT

User Guide

WIRELESS

GHz

802.11g

2,4

Wireless-G Router for Mobile Broadband

Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco

rights reserved. Other brands and product names are trademarks or registered trademarks of their respective

holders.

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:

In addition to these symbols, there are definitions for technical terms that are presented like this:

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”.

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.

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 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 question mark provides you with a reminder about something

you might need to do while using the Wireless-G Router for Mobile

Broadband.

word: definition.

Figure 0-1: Sample Figure Description

WRT54G3G-AT-UG 70306 BW

Wireless-G Router for Mobile Broadband

TableofContents

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 25

The Setup Tab - MAC Address Clone 26

The Setup Tab - Advanced Routing 27

The Wireless Tab - Basic Wireless Settings 28

The Wireless Tab - Wireless Security 29

The Wireless Tab - Wireless MAC Filter 32

The Wireless Tab - Advanced Wireless Settings 33

The Security Tab - Firewall 35

The Security Tab - VPN Passthrough 36

The Access Restrictions Tab - Internet Access 36

The Applications and Gaming Tab - Port Range Forward 38

Wireless-G Router for Mobile Broadband

The Applications & Gaming Tab - Port Triggering 39

The Applications and Gaming Tab - DMZ 40

The Applications and Gaming Tab - QoS 40

The Administration Tab - Management 42

The Administration Tab - Log 43

The Administration Tab - Diagnostics 44

The Administration Tab - Factory Defaults 45

The Administration Tab - Firmware Upgrade 45

The Administration Tab - Config Management 45

The Status Tab - Mobile Network 46

The Status Tab - Router 47

The Status Tab - Local Network 48

The Status Tab - Wireless 49

Appendix A: Troubleshooting 50

Common Problems and Solutions 50

Frequently Asked Questions 57

Appendix B: Wireless Security 65

Security Precautions 65

Security Threats Facing Wireless Networks 65

Appendix C: Upgrading Firmware 68

Appendix D: Windows Help 69

Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter 70

Windows 2000 or XP Instructions 70

For the Router’s Web-based Utility 70

Appendix F: Glossary 72

Appendix G: Specifications 77

Appendix H: Warranty Information 79

Appendix I: Regulatory Information 80

Wireless-G Router for Mobile Broadband

ListofFigures

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: DHCP Server Setttings 21

Figure 5-11: Network Address Server Settings 21

Figure 5-12: Time Setting 22

Figure 5-13: Setup Tab - Mobile Network 23

Figure 5-14: Setup Tab - DDNS (DynDNS.org) 25

Figure 5-15: Setup Tab - DDNS (TZO.org) 25

Figure 5-16: Setup Tab - MAC Address Clone 26

Wireless-G Router for Mobile Broadband

Figure 5-17: Setup Tab - Advanced Routing (Gateway) 27

Figure 5-18: Setup Tab - Advanced Routing (Router) 27

Figure 5-19: Wireless Tab - Basic Wireless Settings 28

Figure 5-20: Wireless Tab - Wireless Security (WPA2 Personal) 29

Figure 5-21: Wireless Tab - Wireless Security (WPA Personal - TKIP) 29

Figure 5-22: Wireless Tab - Wireless Security (WPA Personal - AES) 29

Figure 5-23: Wireless Tab - Wireless Security (WPA2 Enterprise) 30

Figure 5-24: Wireless Tab - Wireless Security (WPA Enterprise - TKIP) 30

Figure 5-25: Wireless Tab - Wireless Security (WPA Enterprise - AES) 30

Figure 5-26: Wireless Tab - Wireless Security (RADIUS) 31

Figure 5-27: Wireless Tab - Wireless Security (WEP) 31

Figure 5-28: Wireless Tab - Wireless MAC Filter 32

Figure 5-29: MAC Address Filter List 32

Figure 5-30: Wireless Tab - Advanced Wireless Settings 33

Figure 5-31: Security Tab - Firewall 35

Figure 5-32: Security Tab - VPN Passthrough 36

Figure 5-33: Access Restrictions Tab - Internet Access 36

Figure 5-34: Internet Policy Summary 37

Figure 5-35: List of PCs 37

Figure 5-36: Port Services 37

Figure 5-37: Applications and Gaming Tab - Port Range Forward 38

Figure 5-38: Applications and Gaming Tab - Port Triggering 39

Figure 5-39: Applications and Gaming Tab - DMZ 40

Figure 5-40: Applications and Gaming Tab - QoS 40

Figure 5-41: Administration Tab - Management 42

Figure 5-42: Administration Tab - Log 43

Figure 5-43: Administration Tab - Diagnostics 44

Figure 5-44: The Ping Test 44

Figure 5-45: The Traceroute Test 44

Figure 5-46: Administration Tab - Factory Defaults 45

Figure 5-47: Administration Tab - Firmware Upgrade 45

Figure 5-48: Administration Tab - Config Management 45

Figure 5-49: Status Tab - Mobile Network 46

Figure 5-50: Status Tab - Router 47

Wireless-G Router for Mobile Broadband

Figure 5-51: Status Tab - Local Network 48

Figure 5-52: Status Tab - Wireless 49

Figure C-1: Upgrade Firmware 68

Figure E-1: IP Configuration Screen 70

Figure E-2: MAC Address/Adapter Address 70

Figure E-3: MAC Address/Physical Address 70

Figure E-4: MAC Address Filter List 71

Figure E-5: MAC Address Clone 71

Wireless-G Router for Mobile Broadband

Chapter 1: Introduction

Welcome

Wireless-G Router for Mobile Broadband

Chapter1: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.

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.

lan (local area network): The computers and

networking products that make up the network in

your home or office.

nat (network address translation): NAT technology

translates IP addresses of a local area network to a

different IP address for the Internet.

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.

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.

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.

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