3Com WL-308 Bedienungsanleitung

http://www.3com.com/

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

11 Mbps Wireless LAN

Workgroup Bridge

User Guide

Quickly and cost-effectively create Wi-Fi certified workgroups

Version 1

Published December, 2001

Version 1.0.3

3Com Corporation

5400 Bayfront Plaza

Santa Clara, California

95052-8145

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 NBX are registered trademarks and the 3Com logo is a trademark of 3Com Corporation.

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 or software contains encryption code which may not be exported or

transferred from the US or Canada without an approved US Department of Commerce export license.

ONTENTS

NTRODUCTION

Infrastructure and Ad Hoc Operating Modes 5

Example Conﬁgurations 5

Wireless Network for the Ofﬁce or Classroom 5

Converged Connections in the Ofﬁce 6

Workgroup Ad Hoc Networks 6

Product Registration and Support 6

NSTALLING

THE

ORKGROUP

RIDGE

Before You Begin 7

Where should I Place the Bridge? 7

Do I Need to Conﬁgure the Bridge? 7

Connecting the Bridge 8

About the Client List 8

Hub Connection 9

3Com NBX Telephone Set Connection 9

Printer Connection 10

Computer Connection 10

Checking the LED Indicators 10

Summary of Conﬁguration Steps 11

Installing the Infrastructure Device Manager 11

ONFIGURING

ORKGROUP

RIDGES

Locating a Wireless Device 13

Entering, Clearing, and Applying System Conﬁguration Settings 14

Changing System Properties 14

Setting IP Network Properties 15

Refreshing the Client List 15

Setting Wireless Network Properties 16

Setting Advanced Performance Properties 16

Setting up an Ad Hoc Network 17

Changing Security Settings 18

No Security (Open System) 18

40-bit Shared Key (Wi-Fi) 18

128-bit Shared Key 18

128-bit Dynamic Security Link 19

Setting up the Wireless Network Login 19

Resetting the Bridge 19

Restoring a Bridge to Factory Defaults 19

Upgrading the System 19

Locating Upgrade Files 20

Installing an Upgrade 20

Changing the Administration Password 20

Backing up a Conﬁguration 20

Restoring a Conﬁguration 21

Viewing System Status 21

Interoperating with Third-Party Equipment 21

ROUBLESHOOTING

Disconnecting the Bridge 24

Uninstalling the Infrastructure Device Manager 24

Uninstalling Conﬁguration Help Files 24

Upgrading Bridge Firmware 24

NDEX

EGULATORY

OMPLIANCE

NFORMATION

NTRODUCTION

3Com wireless technology has all the beneﬁts of a local area network (LAN)

without the restraints and expense of network wiring. 3Com 11 Mbps Wireless

LAN products provide easy, affordable, ﬂexible ways to extend wireless networks

to more users.

This guide shows how you can use the 3Com 11 Mbps Wireless LAN Workgroup

Bridge in your ofﬁce or classroom to connect groups of wired Ethernet client

devices to your wireless LAN.

Infrastructure and Ad

Hoc Operating Modes

Operating in

infrastructure

mode and connected to an Ethernet hub, a single

workgroup bridge can combine up to four client devices—such as computers with

network adapters, printers, and 3Com NBX

telephone sets—into a multiclient

workgroup

. The workgroup associates with the wired network through a wireless

LAN access point such as the 3Com 11 Mbps Wireless LAN Access Point 6000.

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

at close range without an access point, allowing their workgroups to

communicate. 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.

Example

Conﬁgurations

The following examples illustrate ways you can use the wireless workgroup bridge

to conﬁgure Ethernet client devices into workgroups. (Details for setting up

speciﬁc conﬁgurations are in “Installing the Workgroup Bridge” on page 7.)

Wireless Network for

the Ofﬁce or Classroom

You can connect several computers, including those with non-Windows operating

systems, and printers, as shown below.

HAPTER

1: I

NTRODUCTION

Converged Connections

in the Ofﬁce

You can provide converged voice and data services by connecting the bridge and a

computer to a 3Com NBX

telephone set as shown below.

Workgroup Ad Hoc

Networks

You can provide ﬂexible wireless network association for small groups in areas that

cannot be wired as shown below.

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, log on to the 3Com Web site at http://www.3com.com

and navigate to the product support page.

NSTALLING

THE

ORKGROUP

RIDGE

Before You Begin

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

3Com 11 Mbps Wireless LAN Workgroup Bridge:

■

Power supply and power cord.

■

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

To connect the bridge to a hub that does not have an uplink (MDIX) port, you

need an Ethernet crossover cable (not supplied).

Before you connect the bridge, decide where to place it and whether you need to

conﬁgure it.

Where should I Place the

Bridge?

You should place the bridge in a dry, clean location near the hub, telephone,

computer, or printer that will be connected to the bridge. The location must have

a power source and be within 300 feet (100 meters) 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.

Do I Need to Conﬁgure

the Bridge?

If your network has a DHCP server and no special security requirements, you can

use the workgroup bridge just as it is shipped from the factory. If your network is

more complex, you will want to organize devices so that you can manage the

wireless LAN easily and keep it secure. The following table shows the workgroup

bridge conﬁguration factory defaults.

To conﬁgure the bridge, you need a computer running one of the following

operating systems and one of the following browsers:

Operating Systems Browsers

Windows XP Netscape 4.7 or later

Windows 2000 Internet Explorer 5.0 or later

Windows NT 4.0

Windows Me

Windows 98

Windows 95

Property Default Setting

Device Name 3ComWWB

Device Location None

HAPTER

2: I

NSTALLING

THE

ORKGROUP

RIDGE

If the factory defaults meet your requirements, you can connect the bridge as

described in the following topics:

■

“Hub Connection” on page 9

■

“3Com NBX Telephone Set Connection” on page 9

■

“Computer Connection” on page 10

■

“Printer Connection” on page 10.

Connecting the Bridge

The workgroup bridge supports up to four speciﬁc Ethernet devices. It uses a

client list

of MAC addresses to keep track of speciﬁc devices that have

been connected.

About the Client List

Each time a new device is connected to the bridge, either directly or through a

hub, that device’s MAC address is added to the client list. After four different

devices have been connected, the client list is full, and you must refresh it before

the next new device can associate with the network through the bridge. To refresh

Help File Location Local Drive

Help File Path c:\Program Files\3Com\Management Help

IP Network Setting Obtain IP address automatically

IP Address Obtained automatically

Subnet Mask Obtained automatically

Gateway IP Address Obtained automatically

Clear Channel Select Off

Channel Uses access point channel.

Wireless LAN Service Area Attach to any WLAN Service Area automatically

Network Mode Access Point (infrastructure)

Access Point Privacy Mode Off

Network Traffic Accelerator Off (Wi-Fi interoperable)

Data Preamble Long (Wi-Fi interoperable)

Security Setting No Security (Open System)

Administration Password None

TFTP Server IP Address None (Uses TFTP port 69.)

Property Default Setting

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 11 before connecting the bridge.

Connecting the Bridge

the list, you must access the bridge’s conﬁguration management system. Details

on this procedure are in “Refreshing the Client List” on page 15.

Hub Connection

You can supply network connections for up to four devices, such as computers

and printers, by connecting the bridge to an Ethernet hub, as shown below.

3Com NBX

Telephone Set

Connection

You can provide converged voice and data services in an ofﬁce cubicle that is not

wired for Ethernet by connecting the bridge to a 3Com NBX telephone set as

shown below. The NBX server is connected to the same switch or router to which

the access point is connected.

Uplink port

Make sure that the workgroup bridge Ethernet cable is plugged into the hub

uplink (MDIX) port. If your hub does not have an uplink port, you must use an

Ethernet crossover cable (not provided), which can be connected in any port.

HAPTER

2: I

NSTALLING

THE

ORKGROUP

RIDGE

Printer Connection

You can connect the bridge directly to a printer as shown below. Used this way,

the workgroup bridge allows you to place a printer in an area that is not wired

for Ethernet.

Computer Connection

You can connect the bridge directly to a computer as shown below. Used this way,

the workgroup 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.

Checking the LED

Indicators

When the bridge is connected to power, two LEDs indicate activity as described

below.

LED Indicator Location Description

Wireless

association On the top of

the bridge

■

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

connector

■

On—Unit is receiving power.

■

Off—The unit is not receiving power.

■

Blinking—Wired LAN traffic is detected. Faster blinking

indicates heavier traffic.

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