3COM WL-560 User Manual

Download

3Com 11a/b/g Wireless Workgroup Bridge User Guide

Model: WL-560 3CRWE675075

http://www.3com.com/

Part No. DUA6750-75AAA01 Published November 2004 Version 1.0.2

3Com Corporation 350 Campus Drive Marlborough MA USA 01752-3064

Copyright © 2004, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com and the 3Com logo are registered trademarks of 3Com Corporation. Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows

NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of Novell, Inc. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.

IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Inc. All other company and product names may be trademarks of the respective companies with which they are

associated.

ENVIRONMENTAL STATEMENT

It is the policy of 3Com Corporation to be environmentally-friendly in all operations. To uphold our policy, we are committed to:

Establishing environmental performance standards that comply with national legislation and regulations. Conserving energy, materials and natural resources in all operations. Reducing the waste generated by all operations. Ensuring that all waste conforms to recognized

environmental standards. Maximizing the recyclable and reusable content of all products. Ensuring that all products can be recycled, reused and disposed of safely. Ensuring that all products are labelled according to recognized environmental standards. Improving our environmental record on a continual basis.

End of Life Statement

3Com processes allow for the recovery, reclamation and safe disposal of all end-of-life electronic components.

Regulated Materials Statement

3Com products do not contain any hazardous or ozone-depleting material.

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from sustainable, managed forests; it is fully biodegradable and recyclable, and is completely chlorine-free. The varnish is environmentally-friendly, and the inks are vegetable-based with a low heavy-metal content.

CONTENTS

ABOUT THIS GUIDE

Conventions 2 Related Documentation 2 Accessing Online Documentation 3 Product Registration and Support 4

1 INTRODUCTION

Product Features 5

Security 5

Wireless Network Standards 6 Network Configuration and Planning 7 Example Configurations 8

2 INSTALLING THE BRIDGE

Unpacking the Bridge 9 Observing Safety Precautions 10 Deciding Where to Place the Bridge 11

Wall-Mounting the Bridge 11

Installing the Locking Bar 12

Placing the Bridge on a Flat Surface 13 Connecting the Bridge 14

Connecting to a Serial Device 14

Connecting to an Ethernet Device 15

About the Client List 15

Connecting to a Hub 15

Connecting to a Network Printer 16

Connecting to a Computer 16 Checking the LED Indicators 17 Attaching An External Antenna 18 Determining if you Need to Configure the Bridge 18 Using the 3Com Installation CD 21

3 CONFIGURING THE BRIDGE

Using Secure Web Server Connection 23 Using the 3Com Wireless Infrastructure Device Manager 24 Using the Configuration Management System 27

Clearing and Applying System Configuration Settings 28 Changing System Properties 29 Setting IP Network Properties 30 Setting Wireless Network Properties 31 Manually Select Radio Channels 33 Setting Up an Ad-Hoc Network 34 Changing Wireless Security Settings 35 Changing RADIUS Settings 37 Changing SNMP Settings 38 Using the Access Control List 39 Serial Port 40 Resetting the Bridge 42 Restoring the Bridge to Factory Defaults 43 Upgrading the System 44 Changing the Administration Login Name and Password 45 Backing up a Configuration 45 Restoring a Configuration 46 Logging Out 46 Clearing the Ethernet Client List 46 Viewing Connection Status 47 Viewing System Summary 47

4 TROUBLESHOOTING

Diagnosing Problems 49 Disconnecting the Bridge 51 Uninstalling Software and Documentation 51 Upgrading Bridge Firmware 52

A OBTAINING SUPPORT FOR YOUR 3COM PRODUCT

Register Your Product to Gain Service Benefits 53 Solve Problems Online 53 Purchase Extended Warranty and Professional Services 54 Access Software Downloads 54 Contact Us 54

Telephone Technical Support and Repair 55

END USER LICENSE AGREEMENT

REGULATORY INFORMATION

ABOUT THIS GUIDE

This guide provides all the information you need to install and use the 3Com 11a/b/g Wireless Workgroup Bridge in its default state.

The guide is intended for use by IT managers and experienced network installation and administration professionals who have a basic knowledge of current networking concepts.

If the information in the release notes that are shipped with your product differ from the information in this guide, follow the instructions in the release notes.

Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com World Wide Web site:

http://www.3com.com/

2 ABOUT THIS GUIDE

Conventions Table 1 and Table 2 list conventions that are used throughout this guide.

Tab le 1 Notice Icons

Icon Notice Type Description

Information note Information that describes important features or

instructions.

Caution Information that alerts you to potential loss of data or

potential damage to an application, system, or device.

Warning Information that alerts you to potential personal

injury.

Tab le 2 Text Conventions

Convention Description

Screen displays This typeface represents information as it appears on the

Syntax The word “syntax” means that you must evaluate the syntax

The words “enter” and “type”

Keyboard key names If you must press two or more keys simultaneously, the key

Words in italics Italics are used to:

screen.

provided and then supply the appropriate values for the placeholders that appear in angle brackets. Example:

To change your password, use the following syntax:

system password <password>

In this example, you must supply a password for <password>. When you see the word “enter” in this guide, you must type

something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says “type.”

names are linked with a plus sign (+). Example:

Press Ctrl+Alt+Del

■ Emphasize a point.

■ Denote a new term at the place where it is defined in the

text.

■ Identify menu names, menu commands, and software

button names. Examples: From the Help menu, select Contents. Click OK.

INTRODUCTION

3Com wireless technology has all of the benefits of a local area network (LAN) without the constraints and expense of network wiring.

3Com 11a/b/g Wireless LAN products provide easy, affordable, flexible ways to extend wireless networks to more users. This guide shows how you can use the 3Com 11a/b/g Wireless Workgroup Bridge in your office or classroom to connect groups of wired Ethernet client devices to your wireless LAN.

Product Features The 3Com 11a/b/g Wireless Workgroup Bridge includes a robust suite of

standards-based security features, and supports wireless network standards including 802.11a and 802.11g.

Security To protect sensitive data broadcast over the radio, 3Com supports

Wireless Equivalent Privacy (WEP) RC4 64-bit, 128-bit and 152-bit shared-key encryption. 3Com strengthens this basic security mechanism with additional security features, including:

■ MAC address access control lists

■ IEEE 802.1x per-port user authentication with RADIUS server

authentication support

■ Temporal Key Integrity Protocol (TKIP)

■ Advanced Encryption Standard (AES)

■ WiFi Protected Access (WPA)

■ Extensible Authentication Protocol (EAP) support: EAP-TTLS and PEAP

6 CHAPTER 1: INTRODUCTION

Wireless Network

Standards

Understanding the characteristics of the 802.11a and 802.11g standards can help you

make the best choice for your wireless implementation plans.

802.11a

Ratified in 2002, 802.11a is IEEE’s more recent wireless standard. It operates at the 5

GHz band and supports data rates at up to 54 Mbps. Because there are fewer devices in the 5 GHz band, there’s less potential for RF interference. However, because it is at an entirely different radio spectrum, it is not compatible with 802.11g.

The higher spectrum provides about 50 m (164 ft) of coverage—about

what 802.11g offers.

half

Consider 802.11a when you need high throughput in a confined space and you are:

■ Running high-bandwidth applications like voice, video, or multimedia

over a wireless network that can benefit from a five-fold increase in data throughput.

■ Transferring large files like computer-aided design files, preprint

publishing documents or graphics files, such as MRI scans for medical applications, that demand additional bandwidth.

■ Supporting a dense user base confined to a small coverage area.

Because 802.11a has a greater number of non-overlapping channels, you can pack more wireless devices in a tighter space.

802.11g

802.11g operates in the 2.4 GHz band at up to 54 Mbps. Ratified in 2003, it supports

the widest coverage—up to 100 m (328 ft). However, is subject to a greater risk of radio interference because it operates in the more popular 2.4 GHz band.

802.11b operates at up to 11 Mbps and supports coverage up to 100 m (328 ft).

Network Configuration and Planning 7

Consider 802.11g when you need wider coverage and vendor compatibility and you are:

■ Maintaining support for existing 802.11b users and the existing

wireless investment while providing for expansion into 802.11g.

■ Implementing a complete wireless LAN solution, including bridges,

gateways, access points and clients; Wi-Fi certification guarantees compatibility among vendors.

■ Providing access to hot spots in public spaces such as coffee shops or

university cafeterias.

Network Configuration and Planning

The Bridge can operate in either infrastructure or ad-hoc mode, and can support a stand-alone wireless network configuration or an integrated configuration with 10/100 Mbps Ethernet LANs.

Operating in infrastructure mode and connected to an Ethernet hub, a single Bridge can combine up to 16 client devices—such as computers with network adapters and printers—into a multiclient workgroup. The workgroup associates with the wired network through a wireless LAN access point such as the 3Com 11a/b/g Wireless LAN Access Point. Infrastructure configurations extend your wireless LAN to devices that would otherwise have to be connected to the wired network.

Operating in ad-hoc mode, two or more Bridges can associate among themselves and communicate with one another at close range without an access point. You may wish to set up an ad-hoc network, for example, if a group is working away from the office, or if a group in the office needs to share files apart from the wired LAN.

8 CHAPTER 1: INTRODUCTION

POWER

ETHERN

RELESS PO

ETHERN

IRE

Example Configurations

The following examples illustrate ways you can use the Bridge to configure Ethernet client devices into workgroups. (Details for setting up specific configurations are in “Installing the Bridge” on page 9.)

Wireless Infrastructure Network

You can connect several computers, including those with non-Windows operating systems, and network printers, as shown in Figure 1.

Figure 1 Wireless Infrastructure Network

oup

irele

idg

1 1 .

0 0 1

0 1 .

ccess

oint

11a/b/g W

ET N

N R

R E

E S

LES

ET W

E O

IR P

orkgr

Workgroup Ad-Hoc Network

You can provide flexible wireless network association for small groups in areas that cannot be wired, as shown in Figure 2.

Figure 2 Workgroup Ad-Hoc Network

11a/b/g W

orkgr

oup

irele

id g

1 1 .

00 1 .

0 1 .

id g

1 1 .

0 0 1

INSTALLING THE BRIDGE

This chapter contains the information you need to install and set up the Bridge. It covers the following topics:

■ Unpacking the Bridge

■ Observing Safety Precautions

■ Deciding Where to Place the Bridge

■ Connecting the Bridge

■ Checking the LED Indicators

■ Attaching An External Antenna

■ Determining if you Need to Configure the Bridge

■ Using the 3Com Installation CD

Unpacking the Bridge

Make sure that you have the following items, which are included with the Bridge:

■ Power adapter and power cord.

■ Standard Category 5 unshielded twisted pair (UTP) Ethernet cable.

■ Locking bar (used for securing a wall-mounted installation).

■ Rubber feet (four; used for a flat-surface installation).

■ 3Com Installation CD.

For wall-mounting installations, you need the following items, which are not included with the Bridge:

■ Mounting screws.

■ Plastic anchors (for drywall mounting).

To secure the Bridge using the locking bar, you need a lock (not supplied).

10 CHAPTER 2: INSTALLING THE BRIDGE

Figure 3 shows the front view of the Bridge, including the LEDs and connecting ports. It also shows the cradle, which is used to mount the Bridge to a wall or to install the Bridge on a flat surface.

Figure 3 Bridge

Observing Safety Precautions

11a/b/g W

orkgr

ower

erial

oup

ort

therne

irele

idg

ort

radl

This equipment must be installed in compliance with local and national building codes,

regulatory restrictions, and FCC rules. For the safety of

people and equipment, only professional network personnel should install the Bridge.

WARNING: To comply with FCC radio frequency (RF) exposure limits, a minimum body-to-antenna distance of 20 cm (8 in.) must be maintained when the Bridge is operational.

WARNING: To avoid possible injury or damage to equipment, you must use either the provided power supply or power supply equipment that is safety certified according to UL, CSA, IEC, or other applicable national or international safety requirements for the country of use. All references to power supply in this document refer to equipment meeting these requirements.

CAUTION: The 3Com power supply (part number 61-0107-000) input relies on a 16A rated building fuse or circuit protector for short circuit protection of the line to neutral conductors.

Deciding Where to Place the Bridge 11

Deciding Where to Place the Bridge

Wall-Mounting the

Bridge

Place the Bridge in a dry, clean location near the hub, computer, or printer that will be connected to the Bridge. The location must have a power source and be within the following distance of a Wi-Fi compliant wireless LAN access point or ad-hoc wireless station:

■ For 802.11a compatibility, place the Bridge within 50 m (164 ft) of a

Wi-Fi compliant wireless LAN access point.

■ For 802.11b/g compatibility, place the Bridge within 100 m (328 ft) of

a Wi-Fi compliant wireless LAN access point.

The location should be away from transformers, heavy-duty motors, fluorescent lights, microwave ovens, refrigerators, or other equipment that could cause radio signal interference.

The Bridge comes with a cradle for mounting on a wall. For additional security, the Bridge also comes with a locking bar, which can be used with a security lock (not provided) to lock the Bridge to the cradle after the Bridge is mounted to a wall.

To wall-mount the bridge:

1 Screw the cradle to a wall,

Figure 4 Wall-Mounting the Bridge

as shown in Figure 4.

radl

12 CHAPTER 2: INSTALLING THE BRIDGE

2 Route the power and Ethernet cables through the large opening in the cradle.

Figure 5 shows a cable being routed under the cradle.

Figure 5 Routing Cable Under the Cradle

3 Connect the power and Ethernet cables to the ports on the Bridge. 4 Snap the Bridge onto the cradle.

Installing the

Locking Bar

For additional security, install the locking bar in the cradle after the Bridge is mounted to the wall. Use your own lock to secure it in place.

To install the locking bar:

1 Insert the locking bar through the opening in the side of the cradle, as

shown in Figure 6.

Figure 6 Inserting the Locking Bar

.11a

.11g

.100

.10

Deciding Where to Place the Bridge 13

2 Push the locking bar through the opening until the hole on the locking

bar is exposed.

3 Insert a lock through the hole on the locking bar, and then close the lock

to secure it in place, as shown in Figure 7.

Figure 7 Securing the Locking Bar

.10

.100

.11g

.11a

Placing the Bridge on

a Flat Surface

The Bridge comes with four rubber feet that can be used to install the Bridge on a flat surface such as a table or desktop.

CAUTION: Do not place the Bridge on any type of metal surface. Select a location that is clear of obstructions and provides good reception.

Remove the backing from the rubber feet and attach them to the bottom of the cradle. After the rubber feet are installed, place the Bridge on a flat surface.

14 CHAPTER 2: INSTALLING THE BRIDGE

Connecting the Bridge

Connecting to a

Serial Device

The Bridge has power, Ethernet, and serial ports, as shown in Figure 8. Before connecting the Bridge to an Ethernet device, connect the power.

Figure 8 Connecting the Power

ower

able

therne

able

The Bridge can also be connected to a serial device, as shown in Figure 9. Serial cables come with a variety of connector sizes. If your connector is large and prevents the cradle from being attached to the Bridge, remove the end cap on the cradle. This allows the connector to extend through the cradle.

Figure 9 Connecting a Serial Cable

erial

able

Connecting the Bridge 15

POWER

ETHERNET

WIRE

Connecting to an

Ethernet Device

The Bridge is designed to be connected to an Ethernet client device such as a hub, computer, or printer.

CAUTION:

To avoid the possibility of a transmission loop situation between the Bridge and an access point, which could disrupt network operation, do not connect a Bridge that is set in Wireless Client (Infrastructure) mode directly to the LAN (for example, through a wall port or through a hub that is connected directly to the LAN).

About the Client List The Bridge supports up to 16 specific Ethernet client devices. It uses a

client list of MAC addresses to keep track of specific devices that have been connected.

After 16 different devices have been connected, the client list is full, and you must clear it before the next new device can associate with the network through the Bridge.

To clear the list, you must access the Bridge’s Configuration Management System. Details are in “Clearing the Ethernet Client List” on page 46.

Connecting to a Hub You can supply network connections for up to 16 devices, such as

computers and network printers, by connecting the Bridge to an Ethernet hub, as shown in Figure 10.

Figure 10 Connecting to a Hub

ccess

oint

NET R E

E O P

WIR

1 1

1 1 .

0 1 .

0 1

11a/b/g W W

orkgr

oup

plin

irele

id g

ort

You can directly connect the Bridge to a hub that does not have an uplink (MDIX) port, without the need of an Ethernet crossover cable.

16 CHAPTER 2: INSTALLING THE BRIDGE

POWER

ETHER

ESS

POWER

ETHER

REL

ESS

Connecting to a

Network Printer

You can connect a network printer directly to the Bridge or to a hub that is connected to the Bridge. Used this way, the Bridge allows you to place network printers in areas that are not wired for Ethernet.

1 Configure the network printer as you would for connecting it to the wired

LAN. For details on configuring the printer, see your printer documentation.

2 If necessary, configure the Bridge to associate with your access point. 3 Connect the Bridge to the power supply in its permanent location. 4 Connect the network printer directly to the Bridge as shown in Figure 11,

or to a hub that is connected to the Bridge as shown in “Connecting to a Hub” on page 15.

Figure 11 Connecting to a Network Printer

ccess

oint

S R E

ES L

R I

N R E H ET

11a/b/g W W

orkgr

oup

1 1 .

0 1

0 10 .

irele

id g

Connecting to a

Computer

You can connect the Bridge directly to a computer through Ethernet as shown in Figure 12. Used this way, the Bridge can convert a desktop computer to a wireless computer. This connection also allows you to configure a Bridge before connecting it to another device.

Figure 12 Connecting to a Computer

ccess

oint

ET N R E

ES L

E O P

WIR

1 1

1 1 .

10 .

11a/b/

irele

orkgr

oup

idg

Checking the LED Indicators 17

Checking the LED Indicators

When the Bridge is connected to power, LEDs indicate activity as follows:

Figure 13 LED Indicators

.11b/g

.100

.11a

Tab le 3 LED Descriptions

LED Color Indicates

Power Green

The Bridge is powered up and operating normally.

Off

The Bridge is not receiving power or there is a fault with the power supply.

11a Green (solid)

The Bridge has an 802.11a 5 GHz radio band connection.

Green (blinking)

The Bridge has WLAN frame transmission over the 802.11a 5 GHz radio band.

.10

Off

11b/g Green (solid)

Green (blinking)

Off

100 Green (solid)

Green (blinking) Off

10 Green (solid)

Green (blinking) Off

No link is present.

The Bridge has an 802.11g 2.4 GHz radio band connection.

The Bridge has WLAN frame transmission over the 802.11g 2.4 GHz radio band.

No link is present.

The Bridge has a 100 Mbps Fast Ethernet connection.

The Bridge has 100 Mbps Fast Ethernet activity. No link is present.

The Bridge has a 10 Mbps Ethernet connection. The Bridge has 10 Mbps Ethernet activity. No link is present.

18 CHAPTER 2: INSTALLING THE BRIDGE

Attaching An External Antenna

Determining if you Need to Configure the Bridge

The Bridge has two internal diversity dual-band antennas.

If you want to increase the range of the Bridge, an external antenna can be attached to the external antenna connector on the Bridge.

The 3Com-approved external antenna for this Bridge is the 3Com 2.4/5 GHz Omnidirectional Workgroup Bridge Antenna (3CWE501). For more information, go to www.3Com.com

If your network has a DHCP server and no special security requirements, you can most likely use the Bridge just as it is shipped from the factory.

It takes approximately one to two minutes for the Bridge to determine if there is a DHCP server on the network.

View the Bridge’s default settings on page 20 to determine whether or not you need to configure the Bridge for your network. If the factory defaults meet your requirements, you can connect the Bridge as described in “Connecting the Bridge” on page 14.

If your network does not have a DHCP server or is more complex, you may have to configure the Bridge and organize devices so that you can manage the wireless LAN easily and keep it secure. You can use the 3Com Wireless Infrastructure Device Manager (Widman) included on the 3Com Installation CD.

For non-U.S. versions of the Bridge, you need to set the Country mode. This is done when you first open the Bridge’s Configuration Management System. See “Using the Configuration Management System” on page 27 for instructions.

Networks with a DHCP Server

If your network has a DHCP server, an IP address is automatically assigned to the Bridge. It takes approximately one to two minutes for the Bridge to determine if there is a DHCP server on the network. Use the 3Com Wireless Infrastructure Device Manager (Widman) included on the 3Com Installation CD to locate the Bridge on the network and view its IP address.

Alternatively, you can enter the Bridge’s IP address into a web browser on a computer on the same subnet to view the Bridge’s system status or change its configuration. See “Configuring the Bridge” on page 23 for instructions.

Determining if you Need to Configure the Bridge 19

Networks without a DHCP Server

If your network does not have a DHCP server, the Bridge uses a default IP address (169.254.2.2) that is assigned at the factory. You can use that IP address to configure the Bridge, or you can assign a new IP address to the Bridge.

To verify that the Bridge is using the default IP address assigned at the factory:

1 Connect a computer directly to the Bridge using the supplied standard

Category 5 UTP Ethernet cable. See Figure 12 on page 16 for a connection diagram.

2 Enter the Bridge’s default IP address (169.254.2.2) into the computer’s

web browser.

■ If the Configuration Management System starts, the Bridge is using

the factory assigned IP address. You can configure the Bridge with the following login information:

■ Login name: admin

■ Password: none (blank)

See “Configuring the Bridge” on page 23 for detailed instructions.

■ If the Configuration Management System does not start, the Bridge is

on a different subnet than the computer. Install and start the 3Com Wireless Infrastructure Device Manager to discover the Bridge’s IP address. See “Using the 3Com Wireless Infrastructure Device Manager” on page 24 for instructions.

20 CHAPTER 2: INSTALLING THE BRIDGE

Bridge Default Settings

Table 4 shows the Bridge configuration factory defaults.

Tab le 4 Factory Default Settings

Property Default Setting

Device Name 3Com WWB Device Location None (blank) Country For U.S. version, United States and Canada

Client Mode Support multiple wired Ethernet clients IP Network Setting Obtain IP address automatically IP Address Obtained automatically (with a DHCP server)

Subnet Mask Obtained automatically (with a DHCP server)

Gateway IP Address Obtained automatically (with a DHCP server)

Network Mode Wireless Client (Infrastructure) Radio Mode Auto Select Wireless LAN Service Area Attach to any WLAN Service Area (ESSID) automatically Channel Selection Automatic Best Channel (uses access point setting) Transmit Power 100% Antenna Selection Internal Data Preamble Long (if Network Mode is set to Ad-Hoc)

Security Setting Open System (no security)

802.1x Authentication State Disabled SNMP Enabled Access Control List Disabled Administration Login Name admin Administration Password None (blank) TFTP Server IP Address None FTP Server IP Address None

For non-U.S. version, set by the user

169.254.2.2 (without a DHCP server)

255.255.0.0 (without a DHCP server)

0.0.0.0 (without a DHCP server)

Same as access point setting (if Network Mode is set to Wireless Client [Infrastructure])

Using the 3Com Installation CD 21

Using the 3Com Installation CD

The 3Com Installation CD contains the following tools and utilities:

■ 3Com Wireless Infrastructure Device Manager—an administration

tool that helps you select 3Com wireless LAN devices and launch their configurations in your Web browser.

■ 3Com 3CDaemon Server Tool—a firmware upgrade tool that can

act in four different capacities:

■ As a TFTP Server, used for firmware upgrades as well as backup

and restore functions.

■ As a SysLog Server, which is necessary to view SysLog messages.

■ As an optional TFTP Client.

■ As an optional FTP Server.

To use the 3Com Installation CD, you need a computer running one of the

operating systems and browser listed in

Tab le 5 Supported Operating Systems and Browser

Operating Systems Windows XP

Windows 2000 Windows NT 4.0 Windows Me Windows 98

Browser Internet Explorer (latest version is recommended)

Ta bl e 5 .

22 CHAPTER 2: INSTALLING THE BRIDGE

To install one of the tools on your computer:

1 Turn on the computer. 2 Insert the 3Com Installation CD in the CD-ROM drive.

The setup menu appears. If it does not appear, you can start the setup menu from the Windows Start menu. For example: Start > Run > d:setup.exe.

3 In the menu, click Tools and Utilities. 4 In the next screen, click the tool you want to install. 5 Follow the instructions on the screens to complete the installation.

Reboot the computer if prompted to do so.

6 Launch the tool from the Windows Start menu.

For details on using the Wireless Infrastructure Device Manager, see “Using the 3Com Wireless Infrastructure Device Manager” on page 24.

For instructions on using the 3CDaemon Server Tool, see the application’s online help.

CONFIGURING THE BRIDGE

If the Bridge configuration that was set at the factory does not meet your network requirements, or if you want to customize the settings, you can use these tools to change the configuration:

Tab le 6 Configuration Tools

Configuration Tool Description

3Com Wireless Infrastructure Device Manager (Widman)

3Com 11a/b/g Wireless Workgroup Bridge Configuration Management System

Helps you locate 3Com wireless LAN devices on the network, select a device and view its properties, and launch the device’s configuration in your Web browser.

See “Using the 3Com Wireless Infrastructure Device Manager” on page 24 for details.

Resides on the Bridge and lets you configure the Bridge through your web browser. The latest version of Internet Explorer is recommended.

See “Using the Configuration Management System” on page 27 for details.

Using Secure Web Server Connection

The Bridge can be configured using Secure Socket Layer (SSL) technology, which is used to encrypt data exchanged between the computer and the Bridge during a configuration session.

Without SSL enabled, data is exchanged in the form of plain text and can be intercepted during the configuration session.

You must enable the HTTPS option to establish a secure session. See “Web GUI Protocol” in Table 9 on page 30 for instructions.

24 CHAPTER 3: CONFIGURING THE BRIDGE

Using the 3Com Wireless Infrastructure Device Manager

The 3Com Wireless Infrastructure Device Manager (Widman) helps you locate 3Com wireless LAN devices on the network, select a device and view its properties, and launch the Configuration Management System in your Web browser.

The Wireless Infrastructure Device Manager must be installed on a computer that:

■ Has a working Ethernet adapter.

■ Is running Internet Explorer and one of the Windows operating

systems listed in “Using the 3Com Installation CD” on page 21.

■ Is on the same subnet as the Bridge.

See “Using the 3Com Installation CD” on page 21 for installation instructions.

The device to be configured using the Wireless Infrastructure Device Manager must be:

■ Connected to power.

■ Wired to the network, associating with the wireless network, or, in

some cases with the Bridge, connected directly to the computer.

If there is more than one device with the same name in the network (for example, 3Com WWB), make a note of the MAC address of the device you want to select so that you can identify it in the device manager.

If you do not have a DHCP server on your network, it can take up to one minute for a device to become discovered after it has been powered up.

To use the 3Com Wireless Infrastructure Device Manager:

1 Launch the device manager by selecting Start > Programs >

3Com Wireless > Wireless Infrastructure Device Manager.

If you have more than one network adapter installed on your computer, you may be prompted to choose a network adapter. Choose the appropriate adapter and click OK.

The Wireless Network Tree appears in the 3Com Wireless Infrastructure Device Manager window, as shown in Figure 14.

The tree lists all WLAN service areas on the network and expands to show the 3Com wireless LAN devices that are associated to each service area.

Using the 3Com Wireless Infrastructure Device Manager 25

Devices in a different subnet than your computer are identified with exclamation points (!). You can refresh this display by clicking Refresh. You should refresh the display, for example, after you change a device IP address.

Figure 14 Wireless Infrastructure Device Manager Wireless Network Tree

2 In the Wireless Network Tree, select the device you want to configure.

If more than one wireless LAN device appears in the tree and you are not sure that you have selected the right one, click Properties and check the MAC address to verify that it is the one you want.

3 Click Configure.

■ If the selected device is on the same subnet as your computer, the

Configuration Management System main page appears in your Web browser. See “Using the Configuration Management System” on page 27, for details.

■ If the selected device is on a different subnet, the device manager

helps you to assign an IP address on the same subnet as your computer, as shown in Figure 15. You may accept the address offered or enter an address and click Next.

26 CHAPTER 3: CONFIGURING THE BRIDGE

Figure 15 Wireless Infrastructure Device Manager Pre-IP Configuration

4 The next window prompts for an administrative password to allow the

new IP address to be set. If this is the first time the device is being configured, leave the password field blank and click Next.

The configuration main page appears in your Web browser. See “Using the Configuration Management System” on page 27 for details.

Table 7 describes the functions of the buttons in the 3Com Wireless Infrastructure Device Manager window.

Tab le 7 Infrastructure Device Manager Options

Button Description

Properties Displays the following properties of the selected device:

Device Name, Device Type, Wireless LAN Service Area (ESSID), IP Address, Subnet Mask, and MAC Address.

Configure Launches the Configuration Management System for the

selected device. If the selected device is on a different subnet, you are prompted to assign an address on the same subnet as your computer.

Refresh Scans the network and displays the connected 3Com 11a/b/g

Wireless LAN devices.

Choose NIC If your computer has more than one network interface card

installed, allows you to choose which card to use. Close Closes the device manager window and ends the session. Help Launches the device manager help page in your browser.

Using the Configuration Management System 27

Using the Configuration Management System

The 3Com11a/b/g Wireless Workgroup Bridge Configuration Management System resides on the Bridge and lets you configure the Bridge through your Web browser.

To use the Configuration Management System, the computer you are using to connect to the Bridge must be located on the same subnet as the Bridge.

There are two ways to access the Configuration Management System:

■ Enter the IP address of the Bridge in your computer’s web browser.

■ Start the 3Com Wireless Infrastructure Device Manager, locate the

Bridge, and then click Configure.

For non-U.S. versions of the Bridge, when you first open the Configuration Management System you are prompted to select the country in which the Bridge is operating. Select the country in which the Bridge is installed to ensure compliance with local regulations, and then click Apply.

When you first open the Configuration Management System, you are prompted for a user name and password:

■ User name — admin

■ Password — blank (press enter)

The Configuration Management System displays the Connection Status page, as detailed in Table 8.

Tab le 8 Connection Status Page

Property Description Default Value

Connection The MAC address of the associated

access point.

Network Type The type of network for which the

Bridge is configured: Wireless

Client (Infrastructure) or Ad-hoc (Peer-to-Peer).

SSID The Service Set ID. Varies Radio Mode The way in which the Bridge selects

a radio band.

N/A

Wireless Client (Infrastructure)

Auto-Select

28 CHAPTER 3: CONFIGURING THE BRIDGE

Tab le 8 Connection Status Page (continued)

Current Channel The channel over which the Bridge

Security The type of security for which the

Rx Data Rate (Mbps) The most recent data reception

Tx Data Rate (Mbps) The most recent data transmission

Link Quality The normalized transmitted data

Received Signal Strength

Activity (Packets Rx) The number of packets the Bridge

Activity (Packets Tx) The number of packets the Bridge

IP Address The IP address of the Bridge. Varies

is communicating with clients.

Bridge is configured.

rate.

rate (that is, the current data rate over the maximum data rate).

Note: Link Quality is shown in Infrastructure mode only.

The strength of the radio signal that the Bridge detects.

Note: Received Signal Strength is shown in Infrastructure mode only.

has received.

has transmitted.

Varies

Open System (no security)

N/A

Clearing and

Applying System

Configuration

Settings

The pages in the Configuration Management System have two buttons: Clear and Apply.

■ Clear returns the settings to the values they were when you last

clicked Apply.

■ Apply stores the settings permanently in the nonvolatile flash memory.

After you click Apply, the new settings take effect and you can see the changes on the System Summary page.

CAUTION: Your changes are lost if you forget to

click Apply before

moving to a new configuration page.

Using the Configuration Management System 29

Changing System

Properties

Under System Configuration, click System Properties. The System Properties page displays the properties of the selected Bridge. You can change properties by entering a value in a field (see Table 9). When you are finished, click Apply. Table 9 describes the properties.

Tab le 9 System Properties Page

Property Description Default Value

Device Name This name appears in the System

Summary window. You can change the default name to one of your choice.

Device Location If you use the default device name,

entering the location is optional.

Client Mode This setting allows the Bridge to support

single or multiple Ethernet clients attached to the Bridge.

Support Single Wired Ethernet Client is used only when the Bridge is used for replacement of a 3Com Ethernet Client Bridge. Select a MAC option:

■ Capture: Each time the Bridge is

powered on, it captures its MAC address from the first packet it receives on the Ethernet port. The Bridge detects and uses the same MAC address as the device plugged into the Ethernet port.

The Bridge uses the previously captured MAC address upon power-on until the first packet is received on the Ethernet port.

■ Dynamic: The Bridge changes its

MAC address each time the device plugged into the Ethernet port changes.

The Bridge detects the MAC address of the device plugged into the Ethernet port and uses that as its own. The Bridge uses the built-in MAC address upon power-on until a packet is received on the Ethernet port.

■ Built-in: The Bridge uses the

manufacturing radio MAC address as default.

3Com WWB

None

Support multiple wired Ethernet clients

30 CHAPTER 3: CONFIGURING THE BRIDGE

Tab le 9 System Properties Page (continued)

Setting IP Network

Properties

Web GUI Protocol

This setting allows users to enable the secure data exchange scheme over SSL during a configuration session.

■ HTTPS — enables SSL technology.

■ HTTP — disables SSL technology.

HTTP

Under System Configuration, click IP Network. The IP Network Properties page appears, where you can change the settings shown in Table 10.

If you change the IP address and click Apply, you cannot continue to configure the device using the old IP address. Therefore, you must do the following steps after changing the IP address:

1 Close your browser. 2 Return to the 3Com Wireless Infrastructure Device Manager and click

Refresh.

3 Select the device and click Configure to start a new configuration session.

Table 10 describes the IP Network properties.

Table 10 IP Network Properties Page

Setting Description

IP Network Setting This setting allows you to change the IP address of the device.

To let the device get an IP address automatically from a DHCP server, select Obtain an IP address automatically and click Apply.

To specify an IP address, select Specify an IP address, enter the IP address parameters in the spaces provided, and click Apply.

IP Address When Specify an IP address is selected, enter the IP address in

the space provided, and click Apply.

Subnet Mask When Specify an IP address is selected, enter the Subnet Mask

Gateway IP Address

in the space provided, and click Apply. When Specify an IP address is selected, enter the Gateway IP

Address in the space provided, and click Apply.

Using the Configuration Management System 31

Setting Wireless

Network Properties

Under System Configuration, click Wireless Network. The Wireless Network Properties page appears, where you can select different wireless settings, as described in Table 11. When you are finished, click Apply.

The Bridge supports Dynamic and Static Turbo modes and boosts throughput up to 108 Mbps.

The Dynamic Turbo mode allows automatic switching between normal and turbo modes without modification by the user. The feature increases throughput when bandwidth demands are high. When bandwidth demands are low and at regular intervals, normal mode allows legacy connectivity and new associations. The Dynamic Turbo mode connection between the Bridge and the access point may turn to normal mode connection if another station associates with the access point in normal mode.

The Static Turbo mode operates by using two radio channels and does not switch to normal mode. Static Turbo mode must be configured by the user on both the access point and the station.

Table 11 Wireless Network Page

Setting Description

Network Mode Select Wireless Client (Infrastructure) to associate with an

access point. Select Ad-hoc (Peer-to-Peer) to join or form an ad-hoc network.

Radio Mode See “Network Configuration and Planning” on page 7 for

information on selecting the best Radio Mode for your network.

■ Select Auto Select to have the Bridge select the best

Radio Mode automatically.

■ Select 802.11a to set the Bridge to operate with either

802.11a mode or 802.11a Dynamic Turbo mode. Dynamic Turbo mode is entered only when the channel is set to 40, 48, 56, 153, or 161 for 802.11a networks.

■ Select 802.11a Turbo to set the Bridge to operate with

802.11a Static Turbo mode. Do not select this mode unless the access point you intend to associate with is running in

802.11a Static Mode.

■ Select 802.11b/802.11g to set the Bridge to operate with

either 802.11b/g mode or 802.11g Dynamic Turbo mode. Dynamic Turbo mode is entered only when the channel is set to 6 for 802.11g networks.

■ Select 802.11g Turbo to set the Bridge to operate with

802.11g Static Turbo mode. Do not select this mode unless the access point you intend to associate with is running in

802.11g Static mode.

32 CHAPTER 3: CONFIGURING THE BRIDGE

Table 11 Wireless Network Page (continued)

Wireless LAN Service Area

Select Attach to any WLAN Service Area (ESSID) automatically to allow the Bridge to associate with any access point without specifying the ESSID. In this mode, the Bridge uses the ESSID of the access point with the best signal strength. This mode is not available when the network mode is Ad-hoc (Peer-to-Peer).

Select Specify the Wireless LAN Service Area to allow the Bridge to associate only with access points with the same service area. You may enter the WLAN service area name or select it from the list. You must specify the WLAN service area when the network mode is Ad-hoc (Peer-to-Peer).

To maintain a wireless association, the WLAN service area on a Bridge and the access point with which it is associated must match exactly. Therefore, if the Bridge is set to Specify the WLAN Service Area and you change the access point WLAN service area, make sure to also change the Bridge WLAN service area.

Channel Selection If Radio Mode is set to Auto Select, you do not have the

following options to choose from. When the network mode is Wireless Client (Infrastructure), a

user may have the Bridge automatically select an appropriate channel by using Automatic Best Channel or specify the channels by using Specify Channel.

When the network mode is Ad-hoc (Peer-to-Peer) you may specify channel selection as follows:

■ Automatic Best Channel—When this option is enabled, the

Bridge scans the primary channels. If the Bridge is establishing a new ad-hoc network, it chooses the channel with the least number of packets. If the Bridge is joining an existing ad-hoc network, it selects the channel in use.

■ Specify Channel—Click the button preceding this option

and enter the Advanced Wireless Network page. On this page, you can choose channels from the Channel list.

Transmit Power This option specifies the level of transmission power. Select

one of the values (100%, 50%, 25%, 12%, min) from the drop-down menu.

Decrease the Transmit Power setting if more than one Bridge is using the same channel frequency.

Using the Configuration Management System 33

Table 11 Wireless Network Page (continued)

Antenna Selection Select an antenna for the radio signal:

■ Internal — this default setting should be used in most

circumstances.

■ External and one internal antenna — this setting

automatically determines which antenna is best for sending packets to individually attached clients. Choose this setting if the Bridge is located in a place that is surrounded or hindered by metal paths or walls.

Data Preamble To increase performance, click Short (Enhanced performance).

When equipment that does not support short preamble is also being used, click Long (Wi-Fi Interoperable).

Note: The Data Preamble option is available in ad-hoc mode only. However, the Short Data Preamble option is not available for 802.11a and 802.11a Turbo modes in ad-hoc mode.

Manually Select

Radio Channels

On the Advanced Wireless Network page, you can manually select the radio channels and radio modes. The Bridge only looks for a best SSID that matches the specified radio mode on the specified channels.

34 CHAPTER 3: CONFIGURING THE BRIDGE

Setting Up an Ad-Hoc

Network

Operating in ad-hoc mode, two or more Bridges can associate among themselves to form an ad-hoc network without the intervention of an access point. You may wish to set up an ad-hoc network, for example, if a group is working away from the office, or if a group in the office needs to share files apart from the wired LAN.

CAUTION:

must match exactly.

while you are configuring, 3Com recommends

directly to the computer.

To ensure correct operation, the settings on the two Bridges

To avoid the possibility of losing wireless association

that you connect the Bridge

1 Connect the first Bridge to power and use the Ethernet cable to connect

it to the computer.

2 Use the 3Com Wireless Infrastructure Device Manager to select the

Bridge and launch the Configuration Management System.

3 Under System Configuration, click Wireless Network. 4 In the Wireless Network page:

a Locate the Network Mode field and select Ad-hoc (Peer-to-Peer). b Specify the Wireless LAN Service Area and the Channel Selection as

described in “Setting Wireless Network Properties” on page 31.

c Set the Data Preamble.

To increase performance, select Short (Enhanced performance). When equipment that does not support short preamble is also being used, select Long (Wi-Fi Interoperable). When you are finished, click Apply.

Security settings default to Open System (no security). Optionally, you can set different WEP settings as described in “Changing Wireless Security Settings” on page 35.

5 When you are finished, click Apply. 6 End the browser session. 7 Repeat steps 1–6 with the second Bridge. Make sure you configure

Bridge settings to match exactly. When you are finished, click Apply and end the browser session.

8 Connect the Ethernet devices to the Bridges. If you use hubs, make sure

that the Bridges are connected through the hub uplink ports.

Using the Configuration Management System 35

Changing Wireless

Security Settings

Under System Configuration, click Wireless Security. The Wireless Security Settings page appears, where you can select the type of security to be used on the Bridge.

The Bridge can be configured to support three types of data encryption: WEP, TKIP, and AES. After selecting a data encryption type, you can select an authentication type.

The following sections describe the settings. To maintain wireless association, the settings on clients and the access points they associate with (or other members of an ad-hoc network) must match exactly.

No Security (Open System)

No encryption is used. The network communications could be intercepted by unintended recipients.

40/64-bit Shared Key (WEP)

This option encrypts the wireless transmissions to protect data, but still allows communication among compatible wireless LAN clients and access points from third-party manufacturers that are Wi-Fi certified.

This type of security requires you to set up encryption in one of the following ways:

■ String—For use only with other 3Com 11a/b/g wireless devices, an

encryption string is a case-sensitive string of characters between 6 and 30 characters long. To enter the string, select Enter a string to generate shared keys. Then type any combination of letters and numbers in the space provided and select Apply.

■ Shared keys—Hexadecimal keys are sequences of hexadecimal digits

arranged into four keys. A hexadecimal digit may be a letter from A to F or a number from 0 to 9. This type of encryption is compatible with equipment from other manufacturers that use Wi-Fi certified 40-bit encryption. To enter the keys, select Specify shared keys and which to use. In the shared keys window, enter all the keys in the provided spaces, then select a radio button in the Selected Key column to specify which key to use and select Apply.

36 CHAPTER 3: CONFIGURING THE BRIDGE

104/128-bit Shared Key

This option can be used with other 3Com 11a/b/g Wireless LAN devices and with equipment from certain manufacturers that also support 128-bit shared key encryption. It provides a higher level of security than the 40-bit Shared Key (Wi-Fi) option and uses a more complicated type of encryption. This type of security requires you to set up encryption using a string or shared keys as described in “40/64-bit Shared Key (WEP)” on page 35.

128/152-bit Shared Key

This option can be used with other 3Com 11a/b/g Wireless LAN devices and with equipment from certain manufacturers that also support 152-bit shared key encryption. It provides a higher level of security than the 128-bit Shared Key option and uses a more complicated type of encryption. This type of security requires you to set up encryption using a string or shared keys as described in “40/64-bit Shared Key (WEP)” on page 35.

Click the button preceding Specify Shared Keys and Which Key to Use to create or modify WEP keys.

TKIP

The Temporal Key Integrity Protocol (TKIP) option improves data encryption over WEP scheme by dynamically updating the encryption keys every 10,000 packets. TKIP provides per-packet key mixing, a message integrity check, and a re-keying mechanism.

To use TKIP:

1 On the Wireless Security page, select TKIP. 2 Select WPA-PSK for home network or WPA for the scenarios where

RADIUS servers are employed:

■ WPA-PSK: Enter a pass-phrase key or hexidecimal key. The key can be

generated based on a pass-phrase or a sequence of manually entered 64 hexidecimals. The 64 hexidecimals can be automatically generated by selecting Generate a Random Key.

■ WPA: Select an authentication scheme (TTLS or PEAP) and a relevant

authentication type, and enter a user name and a password.

3 Select Apply.

Click the button of TKIP to set TKIP relevant parameters.

Using the Configuration Management System 37

AES

The Advanced Encryption Standard (AES) option uses the highest security cipher for data encryption.

To u se AES :

1 On the Wireless Security page, select AES. 2 Select WPA-PSK for home network or WPA for the scenarios where

RADIUS servers are employed:

■ WPA-PSK: Enter a pass-phrase key or hexidecimal key. The key can be

generated based on a pass-phrase or a sequence of manually entered 64 hexidecimals. The 64 hexidecimals can be automatically generated by selecting Generate a Random Key.

■ WPA: Select an authentication scheme (TTLS or PEAP) and a relevant

authentication type, and enter a user name and a password.

3 Select Apply.

Click the button of AES to set or modify AES relevant parameters.

Changing RADIUS

Settings

Under System Configuration, click RADIUS. The RADIUS page appears, where you can set the primary and secondary RADIUS Server settings.

This page allows for configuration of a Remote Access Dial-in User Service (RADIUS) server for authentication purposes in 802.1x networks. You can change the settings by entering values in the fields as described in Table 12. When you are finished, select Apply.

Table 12 RADIUS Authentication Server Settings

Setting Description

802.1x Authenticator State

Primary RADIUS Server

Primary RADIUS Port Enter the port number of the primary RADIUS Authentication

Primary RADIUS Secret

Enable or disable RADIUS authentication by selecting Enable or Disable.

Enter the IP address of the primary RADIUS Authentication Server. Make sure this address matches the address set in the RADIUS Authentication software.

Server. Make sure this number matches the number set in the RADIUS Authentication software. The default port is 1812.

Enter the password of the primary RADIUS Authentication Server. Make sure this password matches the password set in the RADIUS Authentication software.

38 CHAPTER 3: CONFIGURING THE BRIDGE

Table 12 RADIUS Authentication Server Settings (continued)

Changing SNMP

Settings

Secondary RADIUS Server

Secondary RADIUS Port

Secondary RADIUS Secret

Enter the IP address of the secondary RADIUS Authentication Server. Make sure this address matches the address set in the RADIUS Authentication software.

Enter the port number of the secondary RADIUS Authentication Server. Make sure this number matches the number set in the RADIUS Authentication software. The default port is 1812.

Enter the password of the secondary RADIUS Authentication Server. Make sure this password matches the password set in the RADIUS Authentication software.

Under System Configuration, click SNMP to display and change settings for the Simple Network Management Protocol.

To communicate with the Bridge, the SNMP agent must first be enabled and the Network Management Station must submit a valid community string for authentication. Select SNMP Enable and enter data into the fields as described below. When you are finished, click Apply.

Table 13 SNMP Settings

Setting Description

SNMP Enables or disables SNMP. Contact Sets the location string that describes the system location.

Community Name (Read Only)

Community Name (Read/Write)

Trap Destination IP Address

Trap Destination Community Name

Maximum length: 255 characters. Specifies a community string with read-only access.

Authorized management stations are able to retrieve MIB objects. Maximum length: 23 characters.

Specifies a community string with read-write access. Authorized management stations are able to both retrieve and modify MIB objects. Maximum length: 23 characters.

Enter the IP address of the trap manager that will receive these messages.

Enter the community name of the trap manager that will receive these messages.

Using the Configuration Management System 39

Using the Access

Control List

You can use the Access Control List to allow or prohibit access to the wireless network from Ethernet clients.

Follow these steps to build the Access Control List:

1 Under System Configuration, click Access Control List. 2 On the Access Control List page, click Add.

The Access Control List New ACL page appears.

3 On the New ACL page, enter the MAC address of the client you want to

add to the Access Control List, select the permission type, and click the Add button to substantially add it.

4 Repeat steps 2 and 3 for each client. 5 Select the System Default Mode:

■ Allow—allows the client to access the Bridge.

■ Deny—prohibits the client from accessing the Bridge.

CAUTION: With the Allow option of the System Default Mode selected, the Bridge allows all Ethernet frames except those carrying the MAC addresses that are specified in the Access Control List and have the permission type Deny. Similarly, with the Deny option of the System Default Mode selected, the Bridge denies all Ethernet frames except those carrying the MAC addresses that are specified in the Access Control List and have the permission type Allow.

Make sure that the MAC address of the computer through which you are configuring the Bridge is not specified in the Access Control List with the permission type Deny if you want to set the access control type to Allow. If you want to set the Access Control Type to Deny, make sure that the MAC address of the computer is included in the Access Control List with the permission type Allow. Failure to do so results in access to the Bridge being blocked; the Bridge will no longer be configurable through the computer.

6 Click Apply.

To delete one or more than one client(s) from the Access Control List, select the client(s) and then click Delete.

40 CHAPTER 3: CONFIGURING THE BRIDGE

Serial Port Under System Configuration, click Serial Port to set up network serial port

operation.

About UART

A Universal Asynchronous Receiver/Transmitter (UART) is the fundamental hardware for serial communication, controlling the speed and method of data transfer of the serial port.

Applications utilizing a network serial port between an RS-232 interface and a wireless device use a TCP/IP socket connection. Any program that uses standard TCP/IP network sockets may be used to communicate with the serial port of the Bridge. Once a socket is established to the Bridge, any data written to the socket is sent out the serial port of the Bridge. At the same time, any data received by the serial port of the Bridge is returned via the socket connection.

The Bridge network serial port may be used in two modes:

■ Server Mode — TCP Listen Port

■ Client Mode — TCP Connect Port

In Server Mode, the Bridge waits for a TCP/IP socket connection to be made by the network program with which it will communicate. Server Mode should be used if you have a central server that expects to open a TCP/IP socket connection to the Bridge.

In Client Mode, the Bridge establishes a socket connection to the IP address and port number specified in the configuration. Client Mode should be used if your system expects the Bridge to open a TCP/IP socket connection to a central server.

Configuring Operation Mode

Attach your computer to the serial port on the Bridge, and then configure the Bridge through the computer.

■ Select Enable to establish a TCP/IP socket with a remote computer in

either infrastructure or ad-hoc mode. This allows you to do data communication with the remote computer.

■ Select Disable to disable the Network Serial Port.

Using the Configuration Management System 41

Configuring UART Settings

For proper operation, it is imperative that these settings always match the settings of the device to which the bridge is connected via the RS-232 port. There are two groups of parameters that need to be configured to accomplish this task: UART Settings and Flow Control Settings.

Flow control is the process of adjusting the flow of data from one device to another to ensure that the receiving device can handle all of the incoming data.

To configure the UART settings:

1 Select the baud rate of your device.

The baud rate indicates the data transfer rate of the serial port.

2 Determine the data bits setting of the device you are connecting to the

Bridge, then set the Data Bits setting for the bridge that matches the data bits setting of that device.

The Data Bits setting determines the number of bits used to transmit

data. The possible values are 7 and 8.

3 Determine the stop bits setting of the device you are connecting to the

Bridge, then set the Stop Bits setting on the Bridge that matches the stop bits setting of that device.

The Stop Bits setting determines the number of bits used to represent an

end of a character. The value can be 1 or 2.

4 Determine the parity bit setting of the device you are connecting to the

Bridge, then set the Parity Bit setting on the Bridge that matches the parity bit setting of that device.

The Parity Bit setting is used to check for correct data transmission.

Options are: none, even, and odd.

Configuring Network Serial Port Settings

For Server Mode, click Server Mode and enter the port number to which the Bridge connects in the List on port field. The default port number is

4000.

For Client Mode, select Client Mode and enter the IP address and port number to which the Bridge connects. The default port number is 4000.

42 CHAPTER 3: CONFIGURING THE BRIDGE

Applying Settings

After you set the UART settings, network serial port settings, and operation mode, select Apply to make the settings take effect.

The socket can be substantially established between a client and server; that is, a Bridge in server mode and the other in client mode. The Bridge with the Network Serial Port option set cannot work alone. Generally, a Bridge is set to server mode first, which listens to a designated port. The other Bridge is then set to client mode, which connects to the designated port on the IP address of the Bridge set to server mode.

Resetting the Bridge If the Bridge stops responding correctly, you can perform a reset, which

disrupts the network association temporarily, but does not affect Bridge configuration settings that have already been applied with Apply.

To reset the Bridge, under Tools, click Reset Wireless Workgroup Bridge. In the next page, click Reset.

The Bridge can also be reset using the Wireless Infrastructure Device Manager (Widman). Right-click the Bridge in Widman, and then select

Reset.

Using the Configuration Management System 43

Restoring the Bridge

to Factory Defaults

You can restore Bridge settings to the defaults that were set at the factory either manually or through software.

To restore the settings manually, insert a pointed object (such as the end of a straightened paper clip) into the reset hole on the back of the Bridge, and hold for five seconds.

The reset hole is accessible with the Bridge in the cradle, as shown in Figure 16, or with the Bridge out of the cradle.

Figure 16 Manually Resetting the Bridge in the Cradle

Reset Hole

RESET

To restore the settings through software:

1 Under Tools, click Restore Factory Defaults. 2 Click Restore.

If the Bridge was using an IP address setting other than the default, restoring the factory defaults will change the IP address. If you want to continue configuring the Bridge, do the following:

1 Close your browser. 2 Return to the 3Com Wireless Infrastructure Device Manager and click Refresh. 3 Select the device and click Configure to start a new configuration session.

44 CHAPTER 3: CONFIGURING THE BRIDGE

Upgrading the

System

You can download firmware updates or updates of the Configuration Management System from the 3Com Web site and install those updates on the Bridge.

Options for upgrading the system include using a Trivial File Transfer Protocol (TFTP) server or File Transfer Protocol (FTP) server. The Bridge acts as a TFTP or FTP client to receive the download. Alternatively, you an use the HTTP option and upload the firmware from a downloaded file placed on your computer.

Using FTP (default)

The general instructions for installing the upgrade using FTP are:

1 Launch the Configuration Management System. 2 Under Tools, click Upgrade System. 3 Select FTP. 4 Enter the IP address of the FTP server where the upgrade files are located. 5 Enter the user name, password, path and filename in the appropriate

fields.

6 Click Upgrade.

Using TFTP

The general instructions for installing the upgrade using TFTP are:

1 Launch the Configuration Management System. 2 Under Tools, click Upgrade System. 3 Select TFTP. 4 Enter the file name for the firmware. 5 Enter the IP address of the TFTP server where the upgrade files are located. 6 Click Upgrade.

Using the Configuration Management System 45

Using HTTP

The general instructions for installing the upgrade using HTTP are:

1 Launch the Configuration Management System. 2 Under Tools, click Upgrade System. 3 Select HTTP. 4 Click Browse to locate the downloaded firmware file. 5 Click Upgrade to start the upgrade process.

The upgrade takes place through the HTTP protocol from the local computer.

Changing the

Administration Login

Name and Password

Backing up a

Configuration

3Com recommends that you set a password to protect against unauthorized access. After you set the password, you must enter it each time you launch the configuration for the device.

Under Tools, click Change Administration Password. The Change Administration Password page appears, where you can change the login name and administration password for the device. Enter the current password and new password in the spaces provided and click Save.

As part of system maintenance, you should save and back up the configurations of individual Bridges in case you need to reload them in the future. The backup saves all the parameters of the selected Bridge in a file on your computer. The file can be used later to restore the configuration on this or another bridge.

1 Set the Bridge parameters in the System Configuration pages. 2 Under Tools, click Backup Wireless Workgroup Bridge. 3 In the next page, click Backup Now. 4 Specify a name and location for the backup, and click OK.

46 CHAPTER 3: CONFIGURING THE BRIDGE

Restoring a

Configuration

Logging Out To log out of the Configuration Management System, click Logout under

Clearing the Ethernet

Client List

If you have stored a backup configuration on your computer, you can restore the configuration as follows:

1 Under Tools, click Restore Wireless Workgroup Bridge. 2 In the next page, click Browse and select the backup file to upload. 3 Click Restore.

The configuration is restored and activated on the Bridge. This operation may cause the Bridge to reboot.

If the Bridge was using an IP address setting other than the backup, restoring the configuration will change the IP address. If you want to continue configuring the Bridge, do the following:

1 Close your browser. 2 Return to the 3Com Wireless Infrastructure Device Manager and click Refresh. 3 Select the device and click Configure to start a new configuration session.

Tools.

The Bridge supports up to 16 specific clients (for example, computers and printers) and keeps track of the clients with a list of their MAC addresses.

After the client limit is reached, you must clear the client list to allow a new client to associate with the network. For example, in a hub configuration with 16 clients connected, if you disconnect a desktop computer and connect a new laptop in its place, you must clear the client list to establish network association for the laptop.

To clear the Ethernet Client List:

1 Disconnect a client by unplugging its Ethernet cable from the hub or the

Bridge.

2 Launch the Configuration Management System. 3 Under System Status, click Ethernet Client List. 4 In the Ethernet Client List page, click Clear Client List.

The Bridge erases the client list. Clients that remain connected to the Bridge are added to the list automatically when they next interact with the network.

5 Connect the new client by plugging its Ethernet cable into the hub or the

Bridge.

Using the Configuration Management System 47

Viewing Connection

Status

Viewing System

Summary

Under System Summary, click Connection Status to view a summary of the Bridge’s current connection information. See Table 8 on page 27 for details.

Under System Summary, you can view the following information:

Table 14 System Summary Page

Property Description Default Value

Device Name The name assigned to the Bridge. You can

change the default name to one of your choice by clicking System Properties under System Configuration.

Device Location If you use the default device name, entering

the location is optional.

Country Code The Country Code determines the available

channels and transmission power level based on regulatory restrictions in the county where the Bridge is installed.

Transmit Power The level of transmission power (100%,

50%, 25%, 12%, or Min). You can change this setting by clicking

Wireless Network under System Configuration. MAC Address The MAC address of the Bridge. N/A Serial Number The serial number of the Bridge. N/A Firmware Version The version of firmware the Bridge is

currently using. DHCP Client Determines if the Bridge obtains its

IP address from the DHCP server on the

network. IP Address The IP address of the Bridge. You can

change this address by clicking IP Network

under System Configuration. Subnet Mask The subnet mask address of the Bridge.

You can change this address by clicking IP

Network under System Configuration. Data Preamble The data preamble setting (Short [Enhanced

performance] or Long [Wi-Fi Interoperable]).

To change this setting, click Wireless

Network under System Configuration. System Up Time The elapsed time since the Bridge booted up. Day 0, 0:00:00 Date Manufactured The date the Bridge was manufactured. N/A

3Com WWB

None

Varies

100%

N/A

Varies

Long

Click Refresh to update the information.

TROUBLESHOOTING

Diagnosing Problems

If you have difficulty with the Bridge, try the solutions in the following table.

Table 15 Troubleshooting

Symptom Solution(s)

16 devices have been connected to the Bridge, either simultaneously or sequentially. After connecting another device, the new device cannot associate with the network.

The Bridge supports up to 16 specific clients (for example, computers and printers) and keeps track of them using a client list of MAC addresses. After the client limit is reached, you must clear the client list to allow a new client to associate. For example, in a hub configuration with 16 clients connected, if you disconnect a desktop computer and connect a laptop in its place, you must clear the client list to establish network association.

1 Disconnect a client by unplugging its Ethernet cable

from the hub.

2 Use the 3Com Wireless Infrastructure Device

Manager to select the Bridge and launch its Configuration Management System.

3 Under System Configuration, click Ethernet Client

List. The Ethernet Client List page appears. Click Clear Client List.

4 Connect the new client by plugging its Ethernet

cable into the hub.

50 CHAPTER 4: TROUBLESHOOTING

Table 15 Troubleshooting (continued)

After you change the IP address, after you restore a backup configuration, or after you reset the Bridge to factory defaults, the Configuration Management System stops responding and you cannot continue configuring the Bridge.

The Bridge cannot associate with an access point.

The Wireless Network Tree does not appear in the 3Com Wireless Infrastructure Device Manager window.

The Bridge has a yellow exclamation point (!) next to it in the Wireless Infrastructure Device Manager.

Two Bridges cannot communicate in ad-hoc mode.

If you change the IP address and click Apply, you cannot continue to configure the device using the old IP address. Similarly, after you restore a backup configuration or reset the Bridge to factory defaults, the IP address setting may be changed.

To recover from this situation and continue configuring the Bridge:

1 Close your browser. 2 Return to the 3Com Wireless Infrastructure Device

Manager and click Refresh.

3 Select the device and click Configure to start a new

configuration session and set its IP address.

■ Adjust the position of the Bridge to improve

reception.

■ Launch the Bridge Configuration Management

System and make sure the security settings on the Bridge match those on the access point.

Verify that you are using the correct network adapter. In the device manager window, click Choose NIC. Select the network adapter for the network you want to scan, and click OK.

The Bridge is on a different subnet than the computer attempting to configure it.

To recover from this situation and continue configuring the Bridge:

1 Close your browser. 2 Return to the 3Com Wireless Infrastructure Device

Manager and click Refresh.

3 Select the device and click Configure to start a new

configuration session.

4 Make sure the subnet address matches that of the

computer.

■ Adjust the positions of the Bridges to improve reception.

■ To ensure correct operation in ad-hoc mode, the

settings on the two Bridges must match exactly. Launch the Bridge Configuration Management System and make sure that the Wireless LAN Service Area, channel selections, Data Preamble setting, and security setting are the same on both Bridges.

Table 15 Troubleshooting (continued)

Disconnecting the Bridge 51

Disconnecting the Bridge

You are running Windows NT. After you connect the Bridge, your computer cannot obtain a valid IP address.

Access to the Bridge through Ethernet is blocked because of incorrect settings in the Access Control List.

The Bridge configuration settings may not be compatible with the network. If they are not, and your Windows NT computer is set up to obtain its IP address from a DHCP server, the Bridge is unable to associate with the network to obtain the IP address.

To work around this, set a static IP address on your computer. Then set the Bridge configuration to match the network. When the Bridge is able to associate, reset your computer to obtain its IP address from the DHCP server. If the Bridge should also obtain its IP settings from the DHCP server, make sure this is configured properly on the IP Network page and applied just before ending the session.

Restore the Bridge to factory default settings (see “Restoring the Bridge to Factory Defaults” on page 43). The factory default setting for the Access Control List is disabled. After the factory default settings are restored, the Bridge can be accessed through Ethernet again.

To disconnect the Bridge:

CAUTION: Disconnecting the Bridge ends the network association. To avoid

possible data loss, exit all networking applications on connected devices before you disconnect the Bridge.

1 Unplug the Bridge Ethernet cable from the hub or other device.

Uninstalling Software and Documentation

2 Unplug the Bridge power cord.

If you want to uninstall the 3Com 11a/b/g Wireless Workgroup Bridge software and documentation, you can either use the standard operating system procedure for removing programs or use the following shortcut:

1 From the Windows Start menu, select Start > Programs > 3Com Wireless

> Uninstall 3Com Wireless Infrastructure Device Manager.

2 When prompted to confirm, click OK.

52 CHAPTER 4: TROUBLESHOOTING

Upgrading Bridge Firmware

Firmware is the software that is installed on the Bridge at the factory. Some problems can be solved by installing a new version of the firmware.

For details on how to download a firmware update from the 3Com customer support Web site and install it on your Bridge, see “Upgrading the System” on page 44

OBTAINING SUPPORT FOR YOUR 3COM PRODUCT

3Com offers product registration, case management, and repair services

through eSupport.3com.com. You must have a user name and password to

access these services, which are described in this appendix.

Register Your Product to Gain Service Benefits

Solve Problems

Online

To take advantage of warranty and other service benefits, you must first

http://eSupport.3com.com/

3Com eSupport services are based on accounts that are created or that you are authorized to access.

The 3Com Knowledgebase helps you to troubleshoot 3Com products. This query-based interactive tool is located at:

http://knowledgebase.3com.com

It contains thousands of technical solutions written by 3Com support

engineers.

54 APPENDIX A: OBTAINING SUPPORT FOR YOUR 3COM PRODUCT

Purchase Extended

Warranty and Professional Services

Access Software

Downloads

To enhance response times or extend your warranty benefits, you can

purchase value-added services such as 24x7 telephone technical support, software upgrades, onsite assistance, or advanced hardware replacement.

Experienced engineers are available to manage your installation with

minimal disruption to your network. Expert assessment and implementation services are offered to fill resource gaps and ensure the success of your networking projects. For more information on 3Com Extended Warranty and Professional Services, see:

http://www.3com.com/

Contact your authorized 3Com reseller or 3Com for additional product

and support information. See the table of access numbers later in this

appendix.

You are entitled to bug fix / maintenance releases for the version of

software that you initially purchased with your 3Com product. To obtain access to this software, you need to register your product and then use the Serial Number as your login. Restricted Software is available at:

http://eSupport.3com.com/

To obtain software releases that follow the software version that you

originally purchased, 3Com recommends that you buy an Express or Guardian contract, a Software Upgrades contract, or an equivalent support contract from 3Com or your reseller. Support contracts that include software upgrades cover feature enhancements, incremental functionality, and bug fixes, but they do not include software that is released by 3Com as a separately ordered product. Separately orderable software releases and licenses are listed in the 3Com Price List and

are available for purchase from

your 3Com reseller.

Contact Us 3Com offers telephone, Internet, and e-mail access to technical support and

repair services. To access these services for your region, use the appropriate telephone number, URL, or e-mail address from the table in the next section.

Telephone Technical

Support and Repair

To obtain telephone support as part of your warranty and other service

benefits, you must first register your product at:

http://eSupport.3com.com/

When you contact 3Com for assistance, please have the following

information ready:

■ Product model name, part number, and serial number

■ A list of system hardware and software, including revision level

■ Diagnostic error messages

■ Details about recent configuration changes, if applicable

To send a product directly to 3Com for repair, you must first obtain a

return materials authorization number (RMA). Products sent to 3Com without authorization numbers clearly marked on the outside of the package will be returned to the sender unopened, at the sender’s expense. If your product is registered and under warranty, you can obtain an RMA number online at

http://eSupport.3com.com/. First-time users must apply for a

user name and password.

Telephone numbers are correct at the time of publication. Find a current

directory of 3Com resources by region at:

http://csoweb4.3com.com/contactus/

Country Telephone Number Country Telephone Number Asia, Pacific Rim Telephone Technical Support and Repair

Australia Hong Kong India

Indonesia Japan

Malaysia New Zealand

You can also obtain support in this region at this e-mail address:

apr_technical_support@3com.com

Or request a repair authorization number (RMA) by fax using this number: + 61 2 9937 5048

1 800 678 515 800 933 486 +61 2 9424 5179 or 000800 650 1111 001 803 61009 00531 616 439 or 03 3507 5984 1800 801 777 0800 446 398

Pakistan Philippines

P.R. of China Singapore S. Korea Taiwan Thailand

+61 2 9937 5083

1235 61 266 2602 or 1800 1 888 9469 800 810 3033

0 6161 463

80 080 333 3308 00801 611 261 001 800 611 2000

56 APPENDIX A: OBTAINING SUPPORT FOR YOUR 3COM PRODUCT

Country Telephone Number Country Telephone Number Europe, Middle East, and Africa Telephone Technical Support and Repair

From anywhere in these regions, call: +44 (0)1442 435529 From the following countries, call the appropriate number: Austria

Belgium Denmark Finland France Germany Hungary Ireland Israel Italy

01 7956 7124 070 700 770 7010 7289 01080 2783 0825 809 622 01805 404 747 06800 12813 01407 3387 1800 945 3794 199 161346

Luxembourg Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U.K.

342 0808128 0900 777 7737 815 33 047 00800 441 1357 707 200 123 0800 995 014 9 021 60455 07711 14453 08488 50112 0870 909 3266

You can also obtain support in this region using this URL:

http://emea.3com.com/support/email.html

Latin America Telephone Technical Support and Repair

Antigua Argentina Aruba Bahamas Barbados Belize Bermuda Bonaire Brazil Cayman Chile Colombia Costa Rica Curacao Ecuador Dominican Republic

1 800 988 2112 0 810 444 3COM 1 800 998 2112 1 800 998 2112 1 800 998 2112 52 5 201 0010 1 800 998 2112 1 800 998 2112 0800 13 3COM 1 800 998 2112 AT&T +800 998 2112 AT&T +800 998 2112 AT&T +800 998 2112 1 800 998 2112 AT&T +800 998 2112 AT&T +800 998 2112

Guatemala Haiti Honduras Jamaica Martinique Mexico Nicaragua Panama Paraguay Peru Puerto Rico Salvador Trinidad and Tobago Uruguay Venezuela Virgin Islands

AT&T +800 998 2112 57 1 657 0888 AT&T +800 998 2112 1 800 998 2112 571 657 0888 01 800 849CARE AT&T +800 998 2112 AT&T +800 998 2112 54 11 4894 1888 AT&T +800 998 2112 1 800 998 2112 AT&T +800 998 2112 1 800 998 2112 AT&T +800 998 2112 AT&T +800 998 2112 57 1 657 0888

You can also obtain support in this region in the following ways:

■ Spanish speakers, enter the URL: http://lat.3com.com/lat/support/form.html

■ Portuguese speakers, enter the URL: http://lat.3com.com/br/support/form.html

■ English speakers in Latin America should send e-mail to: lat_support_anc@3com.com

US and Canada — Telephone Technical Support and Repair

All locations: Network Jacks; Wired or Wireless Network Interface Cards:

All other 3Com products

1 847 262 0070 1 800 876 3266

END USER LICENSE AGREEMENT

Customer shall take all steps necessary to protect Wind River's and its licensors' proprietary rights in the Run-Time Module and to ensure that each Run-Time Module distributed by Customer will be accompanied by a localized copy of an End User License Agreement.

Such End User License Agreement shall prohibit the End User from: (i) copying the Run-Time Module, except for archive purposes consistent with the End User's archive procedures; (ii) transferring the Run-Time Module to a third party apart from the Target Application; (iii) modifying, decompiling, disassembling, reverse engineering or otherwise attempting to derive the Source Code of the Run-Time Module; (iv) exporting the Run-Time Module or underlying technology in contravention of applicable U.S. and foreign export laws and regulations; and (v) using the Run-Time Module other than in connection with operation of the Target Application.

In addition, the End User License Agreement shall: (i) state that the Run-Time Module is licensed, not sold and that Customer and its licensors retain ownership of all copies of the Run-Time Module; (ii) expressly disclaim all implied warranties, including without limitation the implied warranties of merchantability, fitness for a particular purpose, title and non-infringement; (iii) exclude liability for any special, indirect, punitive, incidental and consequential damages; and (iv) require that any further distribution of the Run-Time Module be subject to the same restrictions set forth herein.

The End User License Agreement shall also state that, with respect to the Run-Time Module, Wind River and its licensors are third party beneficiaries of the End User License Agreement and that the provisions related to the Run-Time Module are made expressly for the benefit of, and are enforceable by, Wind River and its licensors.

REGULATORY INFORMATION

The 3Com 11 a/b/g Wireless Workgroup Bridge (Model WL-560) must be installed and used in strict accordance with the manufacturer’s instructions as described in the user documentation that comes with the product. This device complies with the following radio frequency and safety standards.

This product contains encryption. It is unlawful to export out of the U.S. without obtaining a U.S. Export License.

This product does not contain any user serviceable components. Any unauthorized product changes or modifications

CAUTION: EXPOSURE TO RADIO FREQUENCY RADIATION.

This device generates and radiates radio-frequency energy. In order to comply with FCC radio-frequency exposure guidelines for an uncontrolled environment, this equipment must be installed and operated while maintaining a minimum body to antenna distance of 20 cm (approximately 8 in.).

This device must not be co-located or operated in conjunction with any other antenna or transmitter. The installer of this radio equipment must ensure that the antenna is located or pointed such that it does not

emit RF field in excess of Health Canada limits for the general population; consult Safety Code 6, obtainable from Health Canada’s website www.hc-sc.gc.ca/rpb.

USA - RADIO FREQUENCY REQUIREMENTS.

This device is for indoor use only when using channels 36, 40, 44 or 48 in the 5.15 to 5.25 GHz frequency range.

High power radars are allocated as primary users of the 5.25 to 5.35 GHz and 5.65 to 5.85 GHz bands. These radar stations can cause interference with and/or damage this device.

USA-FEDERAL COMMUNICATIONS COMMISSION (FCC)

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which can be determined by tuning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:

■ Reorient or relocate the receiving antenna

■ Increase the distance between the equipment and the receiver

■ Connect the equipment to outlet on a circuit different from that to which the receiver is connected

■ Consult the dealer or an experienced radio/TV technician for help

The user may find the following booklet prepared by the Federal Communications Commission helpful:

The Interference Handbook

This booklet is available from the U.S. Government Printing Office, Washington, D.C. 20402. Stock No. 004-000-0034504.

3Com is not responsible for any radio or television interference caused by unauthorized modification of the devices included with this 3Com 11a/b/g Wireless Workgroup Bridge (Model WL-560), or the substitution or attachment of connecting cables and equipment other than specified by 3Com.

The correction of interference caused by such unauthorized modification, substitution or attachment will be the responsibility of the user.

will invalidate 3Com’s warranty and all applicable regulatory certifications and approvals.

MANUFACTURER’S DECLARATION OF CONFORMITY

3Com Corporation 350 Campus Drive Marlborough, MA 01752-3064, USA (800) 527-8677

Date: June 30, 2004 Declares that the Product:

Brand Name: 3Com Corporation Model Number: WL-560 Equipment Type: 11a/b/g Wireless Workgroup Bridge

Complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

CANADA – INDUSTRY CANADA (IC)

This device complies with RSS 210 of Industry Canada. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this

device must accept any interference, including interference that may cause undesired operation of this device.”

L ‘ utilisation de ce dispositif est autorisée seulement aux conditions suivantes: (1) il ne doit pas produire de brouillage et (2) l’ utilisateur du dispositif doit étre prêt à accepter tout brouillage radioélectrique reçu, même si ce brouillage est susceptible de compromettre le fonctionnement du dispositif.

The term "IC" before the equipment certification number only signifies that the Industry Canada technical specifications were met.

To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (EIRP) is not more than that required for successful communication. To prevent radio interference to the licensed service, this device is intended to be operated indoors and away from windows to provide maximum shielding. Equipment (or its transmit antenna) that is installed outdoors is subject to licensing.

Pour empecher que cet appareil cause du brouillage au service faisant l'objet d'une licence, il doit etre utilize a l'interieur et devrait etre place loin des fenetres afin de Fournier un ecram de blindage maximal. Si le matriel (ou son antenne d'emission) est installe a l'exterieur, il doit faire l'objet d'une licence.

High power radars are allocated as primary users of the 5.25 to 5.35 GHz and 5.65 to 5.85 GHz bands. These radar stations can cause interference with and/or damage this device.

INDUSTRY CANADA (IC) EMISSIONS COMPLIANCE STATEMENT

This Class B digital apparatus complies with Canadian ICES-003.

AVIS DE CONFORMITÉ À LA RÉGLEMENTATION D’INDUSTRIE CANADA

Cet appareil numérique de la classe B est conform à la norme NMB-003 du Canada.

SAFETY COMPLIANCE NOTICE

This device has been tested and certified according to the following safety standards and is intended for use only in Information Technology Equipment which has been tested to these or other equivalent standards:

■ UL Standard 60950 (3rd Edition) or 60950-1

■ CAN/CSA C22.2 No. 60950 or 60950-1

■ IEC 60950 or 60950-1

■ EN 60950 or 60950-1

EUROPE – EU DECLARATION OF CONFORMITY

Marking by the above symbol indicates compliance with the Essential Requirements and other relevant provisions of the R&TTE Directive of the European Union (1999/5/EC). This equipment meets the following conformance standards:

EN300 328, EN301 893, EN301 489-17, EN60950 NOTE: To ensure product operation is in compliance with local regulations, select the country in which the

product is installed. Refer to “Configuring the Bridge” in the user guide.

EUROPE - DECLARATION OF CONFORMITY IN LANGUAGES OF THE EUROPEAN COMMUNITY

English Hereby, 3Com Corporation, declares that this 11a/b/g Wireless Workgroup Bridge

Finnish 3Com Corporation vakuuttaa täten että 11a/b/g Wireless Workgroup Bridge

Dutch Hierbij verklaart 3Com Corporation dat het toestel 11a/b/g Wireless Workgroup

French Par la présente 3Com Corporation déclare que l'appareil 11a/b/g Wireless

Swedish Härmed intygar 3Com Corporation Company att denna 11a/b/g Wireless

Danish Undertegnede 3Com Corporation Company erklærer herved, at følgende udstyr

German Hiermit erklärt 3Com Corporation, dass sich dieser/diese/dieses 11a/b/g Wireless

Greek М Е ФЗН РБСП ХУБ 3Com Corporation ДЗЛЩНЕЙ П ФЙ 11a/b/g Wireless Workgroup

Italian Con la presente 3Com Corporation dichiara che questo 11a/b/g Wireless

is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.

tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.

Bridge in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG

Bij deze verklaart 3Com Corporation dat deze 11a/b/g Wireless Workgroup Bridge voldoet aan de essentiële eisen en aan de overige relevante bepalingen van Richtlijn 1999/5/EC.

Workgroup Bridge est conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/CE

Par la présente, 3Com Corporation déclare que ce 11a/b/g Wireless Workgroup Bridge est conforme aux exigences essentielles et aux autres dispositions de la directive 1999/5/CE qui lui sont applicables

Workgroup Bridge står I överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/EG.

11a/b/g Wirelss Workgroup Bridge overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF.

Workgroup Bridge in Übereinstimmung mit den grundlegenden Anforderungen und den anderen relevanten Vorschriften der Richtlinie 1999/5/EG befindet". (BMWi)

Hiermit erklärt 3Com Corporation die Übereinstimmung des Gerätes 11a/b/g Wireless Workgroup Bridge mit den grundlegenden Anforderungen und den anderen relevanten Festlegungen der Richtlinie 1999/5/EG. (Wien)

Birdge УХМ М П СЦЩНЕФБЙ РСП У ФЙУ П ХУЙЩДЕЙУ БРБЙФЗУЕЙУ КБЙ ФЙУ ЛП ЙРЕУ УЧЕФЙКЕУ ДЙБФБОЕЙУ ФЗУ П ДЗГЙБУ 1999/5/ЕК

Workgroup Bridge è conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.

Spanish Por medio de la presente 3Com Corporation declara que el 11a/b/g Wireless

Portuguese 3Com Corporation declara que este 11a/b/g Wireless Workgroup Bridge está

Workgroup Bridge cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE

conforme com os requisitos essenciais e outras disposições da Directiva 1999/5/CE.

EUROPE – RESTRICTIONS FOR USE OF 2.4GHZ FREQUENCIES IN EUROPEAN COMMUNITY COUNTRIES

België/ Belgique:

Deutschland: License required for outdoor installations. Check with reseller for procedure to follow

France: Restricted frequency band: only channels 1 to 7 (2400 MHz and 2454 MHz respectively)

Italia: License required for indoor use. Use with outdoor installations not allowed.

Nederland: License required for outdoor installations. Check with reseller for procedure to follow.

For private usage outside buildings across public grounds over less than 300m no special registration with IBPT/BIPT is required. Registration to IBPT/BIPT is required for private usage outside buildings across public grounds over more than 300m. For registration and license please contact IBPT/BIPT.

Voor privé-gebruik buiten gebouw over publieke groud over afstand kleiner dan 300m geen registratie bij BIPT/IBPT nodig; voor gebruik over afstand groter dan 300m is wel registratie bij BIPT/IBPT nodig. Voor registratie of licentie kunt u contact opnemen met BIPT.

Dans le cas d’une utilisation privée, à l’extérieur d’un bâtiment, au-dessus d’un espace public, aucun enregistrement n’est nécessaire pour une distance de moins de 300m. Pour une distance supérieure à 300m un enregistrement auprès de I’IBPT est requise. Pour les enregistrements et licences, veuillez contacter I’IBPT.

Anmeldung im Outdoor-Bereich notwendig, aber nicht genehmigungspflichtig.Bitte mit Händler die Vorgehensweise abstimmen.

may be used outdoors in France. Please contact A.R.T. (http://www.arttelecom.fr) for applicable procedures to follow.

Bande de fréquence restreinte: seuls les canaux 1- 7 (2400 et 2454 MHz respectivement) doivent être utilisés endroits extérieur en France. Vous pouvez contacter I’Autorité de Régulation des Télécommuniations (http://www.art-telecom.fr) pour la procédure à suivre.

E’necessaria la concessione ministeriale anche per l’uso interno. Verificare con i rivenditori la procedura da seguire.

Licentie verplicht voor gebruik met buitenantennes. Neem contact op met verkoper voor juiste procedure.

EUROPE – RESTRICTIONS FOR USE OF 5GHZ FREQUENCIES IN EUROPEAN COMMUNITY COUNTRIES

European Community Countries

5150-5250 MHz

Channels: 36, 40,

44, 48

Indoor Only

5250-5350 MHz

Channels: 52, 56,

60, 64

Indoor Only

5470-5725MHz

Channels: 100, 104, 108, 112, 116, 120,

124, 128, 132, 136, 140

Indoor/Outdoor

Austria

✔

X X

Belgium, France, Switzerland, Liechtenstein

Denmark, Finland, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, UK

✔ allowed X not allowed

■ To remain in conformance with European spectrum usage laws for Wireless LAN operation, the above

2.4GHz and 5GHz channel limitations apply. The user should check the current channel of operation. If operation is occurring outside of the allowable frequencies as listed above, the user must cease operating the 11a/b/g Wireless Workgroup Bridge at that location and consult the local technical support staff responsible for the wireless network.

■ The 5GHz Turbo mode feature is not allowed for operation in any European Community country.

■ This device must not be operated in ad-hoc mode using channels in the 5GHz bands in the European

Community. Ad-hoc mode provides a direct communication between two client devices without a Wireless LAN Access Point.

■ This device must be used with Access Points that have employed and activated a radar detection feature

required for European Community operation in the 5GHz bands. This device will operate under the control of the Access Point in order to avoid operating on a channel occupied by any radar system in the area. The presence of nearby radar operation may result in temporary interruption in communications of this device. The Access Point’s radar detection feature will automatically restart operation on a channel free of radar. You may consult with the local technical support staff responsible for the wireless network to ensure the Access Point device(s) are properly configured for European Community operation.

✔ ✔ X

✔ ✔ ✔

3COM WL-560 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

Product Features The 3Com 11a/b/g Wireless Workgroup Bridge includes a robust suite of

Security To protect sensitive data broadcast over the radio, 3Com supports

802.11a

802.11g

Network Configuration and Planning

Example Configurations

Wireless Infrastructure Network

Workgroup Ad-Hoc Network

INSTALLING THE BRIDGE

Unpacking the Bridge

Observing Safety Precautions

Deciding Where to Place the Bridge

Figure 4 Wall-Mounting the Bridge

Connecting the Bridge

About the Client List The Bridge supports up to 16 specific Ethernet client devices. It uses a

Figure 10 Connecting to a Hub

Figure 11 Connecting to a Network Printer

Figure 12 Connecting to a Computer

Checking the LED Indicators

Attaching An External Antenna

Determining if you Need to Configure the Bridge

Networks with a DHCP Server

Networks without a DHCP Server

Bridge Default Settings

Using the 3Com Installation CD

Using Secure Web Server Connection

Using the 3Com Wireless Infrastructure Device Manager

Using the Configuration Management System

No Security (Open System)

TKIP

Serial Port Under System Configuration, click Serial Port to set up network serial port

About UART

Configuring Operation Mode

Configuring UART Settings

Configuring Network Serial Port Settings

Applying Settings

Resetting the Bridge If the Bridge stops responding correctly, you can perform a reset, which

Using FTP (default)

Using TFTP

Using HTTP

Logging Out To log out of the Configuration Management System, click Logout under

TROUBLESHOOTING

Diagnosing Problems

Disconnecting the Bridge

Uninstalling Software and Documentation

Upgrading Bridge Firmware

OBTAINING SUPPORT FOR YOUR 3COM PRODUCT

Register Your Product to Gain Service Benefits

Contact Us 3Com offers telephone, Internet, and e-mail access to technical support and

END USER LICENSE AGREEMENT

REGULATORY INFORMATION