3Com 3CRWE20096A - Wireless LAN Access Point 2000 Manuel utilisateur

http://www.3com.com/

http://support.3com.com/registration/frontpg.pl/

11 Mbps Wireless LAN

Access Point 2000

User Guide

The simple, affordable way to network without wires.

Version 1

Published February, 2002

Version 1.0.3

3Com Corporation

5400 Bayfront Plaza

Santa Clara, California

95052-8145

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 is a registered trademark and the 3Com logo is a trademark of 3Com Corporation. Wi-Fi is a

trademark of the Wireless Ethernet Compatibility Alliance.

Microsoft and Windows are registered trademarks of Microsoft Corporation.

All other company and product names may be trademarks of the respective companies with which they

are associated.

EXPORT RESTRICTIONS:

This product contains Encryption and may require US and/or Local Government

authorization prior to export or import to another country.

ONTENTS

NTRODUCTION

Product Registration and Support 5

NSTALLING

CCESS

OINT

Before You Begin 7

Where should I Place the Access Point? 7

Do I Need to Conﬁgure the Access Point? 7

Connecting the Access Point 8

Checking the LED Indicators 8

Summary of Conﬁguration Steps 9

Installing the Infrastructure Device Manager 9

ONFIGURING

THE

CCESS

OINT

2000

Launching a Wireless Device Conﬁguration 11

Changing Access Point Properties 12

Setting Network Properties 13

Access Point Network 13

Wireless DHCP Server 13

Setting Data Transmission Properties 14

Changing Encryption Settings 14

No Security (Open System) 14

40-bit Shared Key (Wi-Fi) 14

128-bit Shared Key 15

Changing the Administration Password 15

Using Conﬁguration Templates 15

Creating a Template 15

Loading a Template 15

Saving Access Point Conﬁgurations 15

Backing up an Access Point Conﬁguration 16

Restoring an Access Point Conﬁguration 16

Viewing System Status 16

Upgrading the System 16

Downloading Upgrade Files 16

Installing an Upgrade 17

Restoring an Access Point to Factory Defaults 17

Interoperating with Third-Party Equipment 17

ROUBLESHOOTING

Diagnosing Problems 19

Uninstalling Software Utilities 20

IRELESS

LAN B

ASICS

How Does a Wireless LAN Work? 21

Network Association 21

Roaming 21

Security 21

Ad Hoc Networks 21

Setting Up a 3Com Wireless LAN 22

All Wireless Networks 22

Wired/Wireless Networks 22

ECHNICAL

UPPORT

Online Technical Services 25

World Wide Web Site 25

3Com Knowledgebase Web Services 25

3Com FTP Site 25

Support from Your Network Supplier 26

Support from 3Com 26

Returning Products for Repair 28

EGULATORY

OMPLIANCE

NFORMATION

NDEX

NTRODUCTION

3Com wireless systems let you simply and conﬁdently extend network information

and applications to difﬁcult-to-wire locations and to your mobile workforce,

making your business more productive, competitive and successful. The 3Com 11

Mbps Wireless LAN Access Point 2000 is the affordable choice for extending your

network to places where wires cannot go.

A single access point can make the Internet, e-mail, and network resources such

as printers available to dozens of wireless client users. And because 3Com 11

Mbps Wireless LAN equipment is Wi-Fi certiﬁed, you can be sure it will work

reliably with certiﬁed equipment from other manufacturers.

Product Registration

and Support

To register your product with 3Com, go to the following Web page:

http://support.3com.com/registration/frontpg.pl

For support information, see “Technical Support” on page 25 or log on to the

3Com Web site at http://www.3com.com and navigate to the product

support page.

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Before You Begin

The following items, which are provided with the 3Com 11 Mbps Wireless LAN

Access Point 2000, are required for installation:

■

Power adapter and power cord.

■

Ethernet crossover cable.

Before you connect the access point, decide where to place it and whether you

need to conﬁgure it.

Where should I Place the

Access Point?

You should place the access point in a dry, clean location near a power source and

an Ethernet connection, and away from transformers, heavy-duty motors,

ﬂuorescent lights, microwave ovens, refrigerators, or other equipment that could

cause radio signal interference.

Do I Need to Conﬁgure

the Access Point?

If your 3Com Wireless LAN has only one access point, a few clients, and no special

security requirements, you can use the 3Com access point just as it was shipped

from the factory. 3Com recommends that you set encryption to secure the

network.

To use the administration tool, which helps you select 3Com wireless LAN devices

and launch their conﬁgurations, you need a computer running one of the

following operating systems and Internet Explorer 5.0 or later.

■

Windows XP

■

Windows 2000

■

Windows NT 4.0

■

Windows Me

■

Windows 98

■

Windows 95

The following table shows the access point conﬁguration factory defaults.

Property Default Setting

Device Name 3Com Access Point 2000

Device Location None

WLAN Service Area 3Com

Help File Location Local Drive

Help File Path C:\Program Files\3Com\3Com Wireless Infrastructure Device

Manager\ManagementHelp\AP2000

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If the conﬁguration that was set at the factory does not meet your network

requirements, or if you want to customize settings, see “Summary of

Conﬁguration Steps” on page 9.

Connecting the

Access Point

Place the access point on a ﬂat surface such as a table, desktop, or the top of a

cabinet and connect it to power and to a port on your hub or switch as

shown below.

Checking the LED

Indicators

When the access point is connected to power, two LEDs indicate activity

as follows:

Access Point Network Obtain an IP address automatically (Used if a DHCP server

is available. If a DHCP server does not assign it an IP address, the

access point’s default IP address is 169.254.xxx.1, where xxx is

the last byte of the access point’s MAC address))

Wireless DHCP Server Enabled

Clear Channel Select Automatically select the best channel

Network Traffic Accelerator Off (Wi-Fi interoperable)

Data Preamble Long (Wi-Fi interoperable)

Encryption Setting No Security (Open System)

Administration Password None

Property Default Setting

Crossover

cable

For correct operation, use the provided Ethernet crossover cable. If you use a

standard straight-through (UTP) Ethernet cable, you must connect to the hub’s

uplink (MDIX) port.

LED Indicator Location Description

Wireless

association On the top of

the access

point

■

On—Unit is receiving power.

■

Off—Unit is not receiving power.

■

Blinking—The unit is transmitting or receiving. Faster

blinking indicates faster transmission speed.

Ethernet

connection At the RJ45

Ethernet conn

ector

■

On—Unit has an Ethernet connection.

■

Off—Unit does not have an Ethernet connection.

■

Blinking—Wired LAN traffic is detected. Faster blinking

indicates heavier traffic.

Summary of Configuration Steps

Summary of

Conﬁguration Steps

After you connect the access point, you may need to change its conﬁguration

settings. The default conﬁguration settings are shown in “Do I Need to Conﬁgure

the Access Point?” on page 7. To change these settings, follow these steps:

Install the 3Com Wireless Infrastructure Device Manager on a computer as

described in “Installing the Infrastructure Device Manager”.

Launch the device manager and select the access point as described in “Launching

a Wireless Device Conﬁguration” on page 11.

Use the 3Com 11 Mbps Wireless LAN Access Point 2000 Conﬁguration

Management System to change and save the settings. For details, see

“Conﬁguring the Access Point 2000” on page 11.

Installing the

Infrastructure Device

Manager

The 3Com installation CD contains the 3Com Wireless Infrastructure Device

Manager, an administration tool that helps you select 3Com wireless LAN devices

and launch their conﬁgurations in your Web browser. The device manager must

be installed on a computer that is on the same network segment or that can

associate with the access point and is running one of the Windows

operating systems and Web browsers listed in “Before You Begin” on page 7.

Follow these steps to install the device manager:

Turn on the computer.

Put the

3Com 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

In the menu, click

Install the Tools and Documentation

In the next screen, click

Install the Administration Tool

Follow the instructions on the screens to complete the installation.

If you are prompted to reboot the computer, do so.

To launch the tool from the Windows Start menu. Select

Start/Programs/3Com

Wireless Infrastructure Device Manager/3Com Wireless Infrastructure

Device Manager

For details on using the tool, see “Launching a Wireless Device Conﬁguration” on

page 11.

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