Linksys EtherFast Instant Broadband BEFW11S4 Manuale utente
A Division of Cisco Systems, Inc.
®
Model No.
Broadband Router
Wireless-B
BEFW11S4
User Guide
WIRELESS
GHz
2.4
802.11b
Wireless-B Broadband Router
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 © 2004 Cisco Systems, Inc. All
rights reserved. Other brands and product names are trademarks or registered trademarks of their respective
holders.
How to Use this User Guide
This User Gudie has been designed to make understanding networking with the Wireless-B Broadband Router
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”.
This exclamation point means there is a caution or warning and is something that
could damage your property or the Wireless-B Broadband Router.
This checkmark means there is a note of interest and is something you should pay
special attention to while using the Wireless-B Broadband Router.
This question mark provides you with a reminder about something you might need to do
while using the Wireless-B Broadband Router.
Figure 0-1: Sample Figure Description
BEFW11S4-v4-UG-41011E KL
word: definition.
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.
Wireless-B Broadband Router
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
Roaming 4
Network Layout 5
Chapter 3: Getting to Know the Wireless-B Broadband Router 6
The Back Panel 6
The Front Panel 7
Chapter 4: Connecting the Wireless-B Broadband Router 8
Hardware Installation 8
Chapter 5: Configuring the Wireless-B Broadband Router 9
Overview 9
The Setup Tab - Basic Setup 10
The Setup Tab - MAC Address Clone 14
The Setup Tab - Advanced Routing 15
The Wireless Tab - Basic Wireless Settings 16
The Wireless Tab - Wireless Security 17
The Wireless Tab - Wireless Network Access 19
The Wireless Tab - Advanced Wireless Settings 20
The Security Tab - VPN Passthrough 22
The Applications and Gaming Tab - Port Range Forwarding 23
The Applications and Gaming Tab - Port Triggering 24
The Applications and Gaming Tab - UPnP Forwarding 24
The Applications and Gaming Tab - DMZ 25
The Administration Tab - Management 25
The Administration Tab - Log 26
The Administration Tab - Firmware Upgrade 27
The Administration Tab - Factory Defaults 28
The Status Tab - Router 29
The Status Tab - Local Network 30
Wireless-B Broadband Router
Appendix A:Troubleshooting 31
Common Problems and Solutions 31
Frequently Asked Questions 38
Appendix B: Wireless Security 45
Security Precautions 45
Security Threats Facing Wireless Networks 45
Appendix C: Upgrading Firmware 48
Appendix D: Windows Help 49
Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter 50
Windows 98 or Me Instructions 50
Windows 2000 or XP Instructions 50
For the Router’s Web-based Utility 51
Appendix F: Glossary 52
Appendix G: Specifications 58
Appendix H: Warranty Information 59
Appendix I: Regulatory Information 60
Appendix J: Contact Information 62
Wireless-B Broadband Router
List of Figures
Figure 3-1: The Broadband Router’s Back Panel 6
Figure 3-2: The Broadband Router’s Front Panel 7
Figure 4-1: Connecting Your Internet Connection 8
Figure 4-2: Connecting Your Network Devices 8
Figure 4-3: Connecting the Power 8
Figure 5-1: Password Screen 9
Figure 5-2: Setup Tab - Basic Setup 10
Figure 5-3: DHCP Connection Type 10
Figure 5-4: Static IP Connection Type 10
Figure 5-5: PPPoE Connection Type 11
Figure 5-6: RAS Connection Type 11
Figure 5-7: PPTP Connection Type 11
Figure 5-8: Heart Beat Signal Connection Type 12
Figure 5-9: Optional Settings 12
Figure 5-10: Setup Tab - MAC Address Clone 14
Figure 5-11: Setup Tab - Advanced Routing 15
Figure 5-12: Setup Tab - Routing Table 15
Figure 5-13: Wireless Tab - Basic Wireless Settings 16
Figure 5-14: WPA Pre-Shared Key 17
Figure 5-15: WPA Radius 17
Figure 5-16: Wireless Tab - Radius 17
Figure 5-17: Wireless Tab - WEP 18
Figure 5-18: Wireless Tab - Wireless Network Access 19
Figure 5-19: Wireless Tab - Wireless Client MAC List 19
Figure 5-20: Wireless Tab - Advanced Wireless Settings 20
Figure 5-21: Security Tab - Filter 21
Figure 5-22: Security Tab - MAC Filter 21
Figure 5-23: Security Tab - VPN Passthrough 22
Figure 5-24: Applications and Gaming Tab - Port Range Forwarding 23
Figure 5-25: Applications and Gaming - Port Triggering 24
Wireless-B Broadband Router
Figure 5-26: Applications and Gaming - UPnP Forwarding 24
Figure 5-27: Applications and Gaming - DMZ 25
Figure 5-28: Administration Tab - Management 25
Figure 5-29: Backup & Restore 26
Figure 5-30: Administration Tab - Log 26
Figure 5-31: Log Table 26
Figure 5-32: Administration Tab - Firmware Upgrade 27
Figure 5-33: Administration Tab - Factory Defaults 28
Figure 5-34: Status Tab - Router 29
Figure 5-35: Status Tab - Local Network 30
Figure 5-36: Status Tab - DHCP Active IP Table 30
Figure C-1: Upgrade Firmware 48
Figure E-1: IP Configuration Screen 50
Figure E-2: MAC Address/Adapter Address 50
Figure E-3: MAC Address/Physical Address 51
Figure E-4: MAC Address Clone 51
1
Chapter 1: Introduction
Welcome
Wireless-B Broadband Router
Chapter 1: Introduction
Welcome
Thank you for choosing the Linksys Wireless-B Broadband Router. Think of the Linksys Wireless-B Broadband
Router as a kind of "splitter" for your Internet connection. Just connect your DSL or Cable Modem to the Router,
and all the computers in your household can share the Internet -- all at the same time. You can connect your
home computers directly to the Router with Ethernet cables, or put wireless network adapters in them and
communicate over radio waves, saving the trouble and expense of running cables through your house.
Once your computers are connected to the Router, they can communicate with each other too, sharing resources
and files. All your computers can print on a shared printer connected anywhere in the house. And your
computers can share all kinds of files -- music, digital pictures, and documents. Keep all your digital music on
one computer, and listen to it anywhere in the house. Organize all of your family's digital pictures in one place, to
simplify finding the ones you want, and easing backup to CD-R. Play head-to-head computer games within the
household, or against Internet opponents. Utilize extra free space on one computer when another's hard drive
starts to fill up.
Your home network is secure, too. All wireless communications are protected by 128-bit encryption. The Router
helps keep intruders out of your computers.
It's all easier than you think -- the included Setup Wizard takes you through configuring your network, step by
step. With the Linksys Wireless-B Broadband Router at the heart of your home network, you don't need to be a
networking genius to share printers, files, and your Internet connection -- with or without wires.
LAN (Local Area Network): The
computers and networking products
that make up the network in your home
or office
2
Chapter 1: Introduction
What’s in this Guide?
Wireless-B Broadband Router
What’s in this Guide?
This user guide covers the steps for setting up and using the Wireless-B Media Adapter.
• Chapter 1: Introduction
This chapter describes the Adapter’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-B Broadband Router
This chapter describes the physical features of the Router.
• Chapter 4: Connecting the Wireless-B Broadband Router
This chapter instructs you on how to connect the Router to your network.
• Chapter 5: Configuring the Wireless-B Broadband Router
This chapter explains how to use the Web-Based Utility to configure the settings on the Wireless-B Broadband
Router.
• Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the Wireless-B Broadband Router.
• Appendix B: Wireless Security
This appendix explains the risks of wireless networking and some solutions to reduce the risks.
• Appendix C: Upgrading Firmware
This appendix instructs you on how to upgrade the firmware on your Router if you should 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 Ethenet 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.
3
Chapter 1: Introduction
What’s in this Guide?
Wireless-B Broadband Router
• 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.
4
Chapter 2: Planning your Wireless Network
Network Topology
Wireless-B Broadband Router
Chapter 2: Planning your Wireless Network
Network Topology
A wireless LAN is a group of computers, each equipped with one Linksys wireless adapter. Computers in a
wireless LAN must be configured to share the same radio channel.
The Linksys wireless adapters provide access to a wired LAN for wireless workstations. An integrated wireless
and wired LAN is called an infrastructure configuration. A group of Linksys wireless adapter users and a
Wireless-B Broadband Router compose a Basic Service Set (BSS). Each Linksys wireless adapter PC in a BSS can
talk to any computer in a wired LAN infrastructure via the Wireless-B Broadband Router.
An infrastructure configuration extends the accessibility of a Linksys wireless adapter PC to a wired LAN, and
doubles the effective wireless transmission range for two Linksys wireless adapter PCs. Since the Wireless-B
Broadband Router is able to forward data within its BSS, the effective transmission range in an infrastructure LAN
is doubled.
Roaming
Infrastructure mode also supports roaming capabilities for mobile users. More than one BSS can be configured
as an Extended Service Set (ESS). This continuous network allows users to roam freely within an ESS. All PCs
equipped with a Linksys wireless adapter within one ESS must be configured with the same ESS ID and use the
same radio channel.
Before enabling an ESS with roaming capability, choosing a feasible radio channel and optimum Wireless-B
Broadband Router position is recommended. Proper router positioning combined with a clear radio signal will
greatly enhance performance.
Infrastructure: a wireless network
that is bridged to a wired network via
an access point.
LAN: the computers and networking
products that make up your local
network
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