3com User Manual ( access point)

8/10/2019 3com User Manual ( access point)

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http://www.3com.com/

Part No. DUA0045-4AAA01

Rev. 01

Published July 2003

OfficeConnectWireless 11g Access PointUser Guide3CRWE454G72


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3Com Corporation

5500 Great AmericaParkwaySanta Clara, California95052-8145

Copyright 2003, 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, oradaptation) without written permission from 3Com Corporation.

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

3Com Corporation provides this documentation without warranty, term, or condition of any kind, eitherimplied or expressed, including, but not limited to, the implied warranties, terms or conditions ofmerchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements orchanges 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 licenseagreement 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 areprovided 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) oras a commercial item as defined in FAR 2.101(a) and as such is provided with only such rights as areprovided in 3Coms standard commercial license for the Software. Technical data is provided with limitedrights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever isapplicable. 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 notbe registered in other countries.

3Com, OfficeConnect and the 3Com logo are registered trademarks of 3Com Corporation.

Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and WindowsNT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks ofNovell, Inc. UNIX is a registered trademark in the United States and other countries, licensed exclusivelythrough X/Open Company, Ltd.

Netscape Navigator is a registered trademark of Netscape Communications.

JavaScript is a trademark of Sun Microsystems

Wi-Fi and the Wi-Fi logo are trademarks of WECA (Wireless Ethernet Compatibility Alliance)IEEE and 802 are 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 areassociated.

ENVIRONMENTAL STATEMENT

It is the policy of 3Com Corporation to be environmentally-friendly in all operations. To uphold our policy, weare 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 recognizedenvironmental 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 isfully biodegradable and recyclable, and is completely chlorine-free. The varnish is environmentally-friendly, andthe inks are vegetable-based with a low heavy-metal content.


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CONTENTS

ABOUTTHISGUIDE

Naming Convention 7

Conventions 8

Feedback about this User Guide 8

Related Documentation 9

Product Registration 9

1 INTRODUCINGTHEACCESSPOINT

OfficeConnect Wireless 11g Access Point 12Access Point Advantages 13

Package Contents 13

Minimum System and Component Requirements 14

Front Panel 14

Rear Panel 16

2 HARDWAREINSTALLATIONIntroduction 17

Safety Information 17

Positioning the Access Point 17

Using the Rubber Feet 18

Wall Mounting 18

Powering Up the Access Point 19Connecting the Access Point 19

3 RUNNINGTHESETUPWIZARDAccessing the Wizard 21

Password 26

LAN Settings 26Wireless Settings 28

Summary 30


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4 ACCESSPOINTCONFIGURATIONNavigating Through the Access Point Configuration Pages 31

Main Menu 31

Option Tabs 32

Welcome Screen 32

Notice Board 33

Password 33

Wizard 34LAN Settings 34

Unit Configuration 34

DHCP Clients List 38

Wireless Settings 39

Configuration 39

Encryption 41

Configuring WPA Encryption 41Configuring WEP Encryption 42

Connection Control 44

Client List 47

Profile 48

System Tools 50

Restart 50

Configuration 50

Upgrade 51

Status and Logs 53

Status 54

Logs 54

Support and Feedback 54

5 CLIENTBRIDGEMODECONFIGURATIONWhat is Client Bridge Mode? 57

Switching to Client Bridge Mode 57

Configuring Client Bridge Mode 58

Welcome Menu 58

LAN Settings 59


Configuration 60

Encryption 60


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Restart 63

Status and Logs 63


6 TROUBLESHOOTINGBasic Connection Checks 65

Browsing to the Access Point Configuration Screens 65

Forgotten Password and Reset to Factory Defaults 66Wireless Networking 66

Alert LED 68

Recovering from Corrupted Software 68

Frequently Asked Questions 69

A USINGDISCOVERYRunning the Discovery Application 71Windows Installation (95/98/2000/Me/NT) 71

B IP ADDRESSINGThe Internet Protocol Suite 73

Managing the Access Point over the Network 73

IP Addresses and Subnet Masks 73

How does a Device Obtain an IP Address and Subnet Mask? 75

DHCP Addressing 75

Static Addressing 75

Auto-IP Addressing 75

C TECHNICALSPECIFICATIONSStandards 78


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ABOUTTHISGUIDE

This guide describes how to install and configure the OfficeConnectWireless 11g Access Point (3CRWE454G72).

This guide is intended for use by those responsible for installing andsetting up network equipment; consequently, it assumes a basic workingknowledge of LANs (Local Area Networks).

If a release note is shipped with the OfficeConnect Wireless 11g AccessPoint and contains information that differs from the information in thisguide, follow the information in the release note.

Most user guides and release notes are available in Adobe AcrobatReader Portable Document Format (PDF) on the 3Com World Wide Website:

http://www.3com.com

Naming Convention Throughout this guide, the OfficeConnect Wireless 11g Access Point isreferred to as the Access Point.

Category 3 and Category 5 Twisted Pair Cables are referred to as TwistedPair Cables throughout this guide.

The PC used to configure the Access Point is referred to as the admincomputer. 3Com recommends that during the initial configuration thatthis is connected to the same switch or hub as the Access Point.


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8 ABOUTTHISGUIDE

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

Feedback about thisUser Guide Your suggestions are very important to us. They will help make ourdocumentation more useful to you. Please e-mail comments about thisdocument to 3Com at:

[email protected]

Please include the following information when commenting:

Document title

Document part number (on the title page)

Page number (if appropriate)

Table 1 Notice Icons

Icon Notice Type Description

Information note Information that describes important features orinstructions.

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 personalinjury.

Table 2 Text Conventions

Convention Description

The words enterand type

When you see the word enter in this guide, you must typesomething, and then press Return or Enter. Do not pressReturn or Enter when an instruction simply says type.

Keyboard key names If you must press two or more keys simultaneously, the keynames are linked with a plus sign (+). Example:

Press Ctrl+Alt+Del

Words in italics Italics are used to:

Emphasize a point.

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

Identify menu names, menu commands, and softwarebutton names. Examples:

From the Helpmenu, select Contents.

Click OK.


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Conventions 9

Example:

OfficeConnect Wireless 11g Access Point User Guide

Part Number DUA0045-4AAA01

Page 24

Do not use this e-mail address for technical support questions. Forinformation about contacting Technical Support, please refer to the

Support and Safety Information sheet.

RelatedDocumentation

In addition to this guide, each Access Point document set includes oneInstallation Guide. This guide contains the instructions you need to installand configure your Access Point.

Product Registration You can now register your Access Point on the 3Com web site and

receive up-to-date information on your product:http://www.3com.com/register/


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10 ABOUTTHISGUIDE


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1 INTRODUCINGTHEACCESSPOINT

Welcome to the world of networking with 3Com. In the modernbusiness environment, communication and sharing information is crucial.Computer networks have proved to be one of the fastest modes ofcommunication but, until recently, only large businesses could afford thenetworking advantage. The OfficeConnect product range from 3Comhas changed all this, bringing networks to the small office.

The products that compose the OfficeConnect range give you, the smalloffice user, the same power, flexibility, and protection that has beenavailable only to large corporations. Now, you can harness the benefits ofwireless networking.


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12 CHAPTER1: INTRODUCINGTHEACCESSPOINT

OfficeConnectWireless 11g AccessPoint

The OfficeConnect Wireless 11g Access Point is designed to provide acost-effective means of connecting wired and wireless networks.

A single Access Point makes the Internet, e-mail and network resources,such as printers, available to dozens of wireless clients. Because theAccess Point is a WI-FI certified device, you can be sure it will work reliablywith certified equipment from other manufacturers.

Figure 1 Example Network

3Com Wireless 11g3Com Wireless 11gccess Pointccess Point

ComputerComputer

Hub / SwitchHub / Switch

Wireless serWireless ser

Wireless serWireless ser

Power AdapterPower Adapter


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Access Point Advantages 13

Access PointAdvantagesThe advantages of the Access Point include: Cross-platform operation for compatibility with Windows, Unix and

Macintosh computers

Easy-to-use, Web-based setup and configuration

Provides centralization of all network address settings (DHCP)

Shares network resources between both wired and wireless computers

Operates as either:

an Access Point (providing networking for wireless clients)

a Client Bridge (providing access to a wireless network for a singleclient)

Support for Wireless Equivalent Privacy (WEP) and Wi-Fi ProtectedAccess(WPA) encryption methods.

Package Contents The Access Point kit includes the following items:

One OfficeConnect Wireless 11g Access Point

One power adapter for use with the Access Point

Four rubber feet

One Ethernet cable

One CD-ROM containing the Access Point Discovery program and thisUser Guide

Installation Guide

One Support and Safety Information Sheet

One Warranty Flyer

If any of these items are missing or damaged, please contact your retailer.


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Minimum Systemand ComponentRequirements

Your Access Point requires that the computer(s) and components in yournetwork be configured with at least the following:

A computer with an operating system that supports TCP/IPnetworking protocols (for example Windows 95/98/NT/Me/2000/XP,Unix, Mac OS 8.5 or higher).

An Ethernet 10Mbps or 10/100 Mbps or 10/100/1000 Mbps NIC.

An 802.11b or 802.11g wireless NIC.

A Web browser program that supports JavaScript, such as Netscape4.7 or higher, Internet Explorer 5.0 or higher, or Mozilla 1.2.1 orhigher.

Front Panel The front panel of the Access Point contains a series of indicator lights(LEDs) that help describe the state of various networking and connectionoperations.

Figure 2 Access Point - Front Panel

1 Alert LED

Orange

Indicates a number of different conditions, as described below.Off- The Access Point is operating normally.

Flashing quickly- Indicates one of the following conditions:

The Access Point has just been started up and is running a self-testroutine, or

The administrator has invoked the Reset toFactory Defaults

command, or The system software is in the process of being upgraded

21 3 4

OfficeConnect Wireless 11g Access Point

3CRWE454G72LAN StatusWLAN

Alert EnabledPower


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Front Panel 15

In each of these cases, wait until the Access Point has completed the

current operation and the alert LED is Off.

Flashing slowly- The Access Point has completed the Reset to FactoryDefaultsprocess, and is waiting for you to release the reset button. TheAccess Point will then enter the start-up sequence and resume normaloperation.

If you have used the reset button to reset the unit to Factory Defaults,

follow steps 5 to 6 in Forgotten Password and Reset to FactoryDefaultson page 66.

Continuously on - A fault has been detected with your Access Pointduring the start-up process. Refer to Chapter 6Troubleshooting.

2 Power LED

GreenIndicates that the Access Point is powered on.

3 LAN Status LED

Green (100Mbps link) / yellow (10Mbps link)

If the LED is on, the link between the port and the next piece of networkequipment is OK. If the LED is flashing, the link is OK and data is being

transmitted or received. If the LED is off, nothing is connected, theconnected device is switched off, or there is a problem with theconnection (refer to Chapter 6Troubleshooting). The port willautomatically adjust to the correct speed and duplex.

4 Wireless LAN (WLAN) Status LED

Yellow

If the LED is on it indicates that wireless networking is enabled. If the LED

is flashing, data is being transmitted or received. If the LED is off, theWireless LAN has been disabled in the Access Point, or there is a problem.Refer to Chapter 6Troubleshooting.


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Rear Panel The rear panel (Figure 3) of the Access Point contains one LAN port, areset button, a power adapter OK LED and a power adapter socket.

Figure 3 Access Point - Rear Panel

5 Wireless Antennae

The antennae on the product should be placed in a V position wheninitially installed.

CAUTION: Do not force the antennae round further than 90 degrees ineither direction.

6 Power Adapter Socket

Only use the power adapter supplied with this Access Point. Do not useany other adapter.

7 Power Adapter OK LED

Green

Indicates that the power adapter is supplying Power to the Access Point.If the LED is off, there may be a problem with the power adapter oradapter cable.

8 Ethernet Port

Use the supplied patch cable to connect the Access Point to the LAN. Theport will automatically adjust to the correct speed and duplex.

9 Reset Button

This button allows you to reset the unit to factory defaults.

8 9

Ethernet

5 5

RESET

6 7

OK


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2 HARDWAREINSTALLATION

Introduction This chapter will guide you through a basic installation of the AccessPoint, including:

Connecting the Access Point to your network.

Setting up your computers for networking with the Access Point.

Safety Information

WARNING:Please read the Safety Informationsection in Appendix Dbefore you start.

VORSICHT:Bitte lesen Sie den Abschnitt Wichtige Sicherheitshinweisesorgfltig durch, bevor Sie das Gert einschalten.

AVERTISSEMENT:Veuillez lire attentivement la section Consignesimportantes de scuritavant de mettre en route.

Positioning theAccess Point

You should place the Access Point in a location that:

allows convenient connection to the computer or other ethernetdevice that will be connected to the LAN port on the rear panel.

allows easy viewing of the front panel LED indicator lights, and accessto the rear panel connectors, if necessary.

is centrally located to the wireless computers that will connect to theAccess Point. A suitable location might be on top of a high shelf orsimilar furniture to optimize wireless connections to computers inboth horizontal and vertical directions, allowing wider coverage.


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18 CHAPTER2: HARDWAREINSTALLATION

When positioning your Access Point, ensure:

It is out of direct sunlight and away from sources of heat.

Cabling is away from power lines, fluorescent lighting fixtures, andsources of electrical noise such as radios, transmitters and broadbandamplifiers.

Water or moisture cannot enter the case of the unit.

Air flow around the unit and through the vents in the side of the caseis not restricted. 3Com recommends you provide a minimum of25 mm (1 in.) clearance.

Using the RubberFeet

Use the four self-adhesive rubber feet to prevent your Access Point frommoving around on your desk or when stacking with other flat topOfficeConnect units. Only stick the feet to the marked areas at eachcorner of the underside of your Access Point.

Wall Mounting There are two slots on the underside of the Access Point that can be usedfor wall mounting.

When wall mounting the unit, ensure that it is within reach of the poweroutlet.

You will need two suitable screws to wall mount the unit. To do this:

1 Ensure that the wall you use is smooth, flat, dry and sturdy and make twoscrew holes which are 150 mm (5.9 in.) apart.

2 Fix the screws into the wall, leaving their heads 3 mm (0.12 in.) clear ofthe wall surface.

3Remove any connections to the unit and locate it over the screw heads.When in line, gently push the unit on to the wall and move it downwardsto secure.

CAUTION: Only wall mount single units, do not wall mount stackedunits.


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Powering Up the Access Point 19

Powering Up theAccess Point To power up the Access Point:

1 Plug the power adapter into the power adapter socket located on theback panel of the Access Point.

2 Plug the power adapter into a standard electrical wall socket.

Connecting theAccess Point

The first step for installing your Access Point is to physically connect it to aswitch or hub. See Figure 4.

Figure 4 Connecting the Access Point

To use your Access Point to connect to the wireless LAN to the wired LAN:

1 Insert one end of the supplied Ethernet (RJ-45 Category 5) cable into theLAN port on the rear panel of the Access Point.

2 Insert the other end of the cable into the RJ-45 port on switch or hub.Check that the LAN status LED lights on the Access Point.

You have now completed the hardware installation of your Access Point.Next you need to set up your computers so that they connect to theAccess Point.

OfficeConnectWireless Access Point

Hub / Switch

Wirelessusers

OfficeCon

nect11Mb

ps Wireless

Access Poi

nt

3CRWE4

1196

LANStatu

s

WLAN

Alert


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20 CHAPTER2: HARDWAREINSTALLATION


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3 RUNNINGTHESETUPWIZARD

Accessing theWizard

3Com recommends that you perform the initial Access Pointconfiguration from a computer that is directly connected to the LAN portand not from a wireless connection.

However, you may configure the Access Point from a wireless admincomputer but, note that you may lose contact with the Access Point if

you change the wireless configuration. To communicate with the AccessPoint, your wireless NIC should be set as follows:

Encryption none

Service Area Name/SSID 3Com

The Access Point setup program is Web-based, which means that it isaccessed through your Web browser (Netscape Navigator, Internet

Explorer or Mozilla).

To use the Setup Wizard:

1 Ensure that you have at least one computer connected to the AccessPoint. Refer to Chapter 2for details on how to do this.

2 Insert the Access Point CD-ROM in the CD-ROM drive on your computer.

A menu will appear; select Discovery.

Discovery will find the Access Point even if it is unconfigured ormisconfigured.


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22 CHAPTER3: RUNNINGTHESETUPWIZARD

Figure 5 Discovery Welcome Screen

3 When the Welcomescreen is displayed, select the NIC from which the

Access Point will be discovered. Then click on Nextand wait until theapplication discovers the Access Points connected to your LAN.

Figure 6 Discovered Access Point Screen

4 Figure 6shows an example Discovered Devices screen. Highlight theWireless 11g Access Pointby clicking on it, and press Next.

If the discovery application finds multiple Access Points compare the serialnumber on the Discovered Devices Screen with the serial number on the

base of your Access Point.

A i h Wi d 23


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Accessing the Wizard 23

Figure 7 Discovery Finish Screen

5 Click on Finishto launch a web browser and display the login page for

the Access Point as shown in Figure 8.6 To log in, enter the password (the default setting is admin) in the System

Passwordfield and click Log in(Figure 8).

Figure 8 Access Point Login Screen

24 CHAPTER 3: RUNNING THE SETUP WIZARD


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7 If the password is correct, the Country & Mode Selectionscreen appears.

(Figure 9)a Select the country in which the Access Point is to operate.

b Select the wireless mode for the Access point:

SelectAccess Point (default)if the Access Point is to be used toprovide networking for wireless clients. See Chapter 4forconfiguration information.

Select Client Bridge Modeif the Access Point is to be used toprovide access to a wireless network for a single client. SeeChapter 5for configuration information.

The Country & Mode Selectionscreen is only displayed on initialconfiguration of the Access Point.

Figure 9 Country Selection Screen

8 When you have logged in and selected a country and operating modeeither:

The Welcomescreen will appear (Figure 10). Select the Wizard taband click Wizard.

or



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If your Access Point has not been configured before, the Wizard will

launch automatically (refer to Figure 11).9 Click Next.

10 You will be guided step by step through a basic setup procedure.

Figure 10 Welcome Screen

Figure 11 Wizard Screen

26 CHAPTER 3: RUNNING THE SETUP WIZARD


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Password Figure 12 Change Administration Password Screen

When the Change Administration Passwordscreen (Figure 12) appears,type the Old Password, then a new password in both the New Passwordand Confirm Password boxes.

3Com recommends entering a new password when setting up the AccessPoint for the first time. The Access Point is shipped from the factory witha default password, admin.

1. Password is case sensitive.

2. Write the new password down and keep it in a safe place, so that youcan change your settings in the future.

Click Next.

LAN Settings Figure 13 LAN Settings Screen

This screen determines how the Access Point obtains its IP address. Thereare three options.



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g

Obtain IP Address automatically- The Access Point will obtain an IP

address from a DHCP server already operating on your network.

Specify an IP address manually- Select this option to manuallyconfigure the IP address of the Access Point. The screen shown inFigure 14is displayed. This screen displays a suggested LAN IP addressand subnet mask of the Access Point. It also allows you to change the IPaddress and subnet mask.

3Com recommends that you manually assign your Access Point a static IPaddress.

Figure 14 LAN IP Address Screen

Specify an IP address manually and enable DHCP server- TheAccess Point contains a Dynamic Host Configuration (DHCP) server thatcan automatically configure the TCP/IP settings of every computer onyour network.

To activate the DHCP Server option, select Specify an IP Address manuallyand Enable DHCP server. The screen shown in Figure 15opens.



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Figure 15 DHCP Server Setup Screen

This screen displays a suggested LAN IP address and subnet mask of theAccess Point. It also allows you to change the IP address and subnetmask.

Two further fields are available for you to enter the Startaddress of anaddress pool and an Endaddress. The largest available continuous IP poolwill be automatically entered; if this is not appropriate, make yourrequired changes.

Before enabling the DHCP Server, ensure that there are no other DHCPservers running on your network.

Wireless Settings Figure 16 Wireless Configuration Screen

This screen displays the current Channeland Service Area Name. It also

allows you to change these settings. There are a maximum of 14 channels,



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the number available to you is dependent on the country in which you

reside.

1 Select a channel for the Access Point to use or Clear Channel Select if youwant the Access Point to choose an unused channel on start-up.

2 Enter a Service Area Name/SSID.

The Service Area Namedefault for 3Com products is 3Com. Up to 32(case sensitive) characters can be entered for the Service Area Name.

3Com strongly recommends that you change the SSIDto somethingother than the default.

For information on improving your Wireless network security seeWireless Settingson page 39.

If you are configuring the Access Point from a wireless computer anychanges you make to the wireless configuration will result incommunication between the Access Point and your computer being lost.This is why 3Com strongly recommends that you configure the AccessPoint from a wired computer.

It is very important that you set up your wireless clients to use the sameService Area Name or SSID as the one you use on this screen. If yourclients use a different Service Area Name then they will not be able to

communicate with the Access Point.The choice of channel is less important as Clients will generally search allof the available channels. You should however make a note of thechannel you select as this may be useful if you experience problems withyour clients.



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Summary Figure 17 Configuration Summary Screen

When you complete the Setup Wizard, a configuration summary willdisplay. Verify the configuration information of the Access Point and thenclick Finishto save your settings. 3Com recommends that you print thispage for your records.

If you have made changes to the LAN Settings or wireless configurationoptions, you may need to reconfigure the computer you are using inorder to make contact with the Access Point again.

Your Access Point is now configured and ready for use.

See Chapter 4for a detailed description of the Access Point configurationscreens.

See Chapter 5for a detailed description of the Client Bridge Modeconfiguration screens.


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4 ACCESS

POINT

CONFIGURATION

NavigatingThrough the AccessPoint ConfigurationPages

This chapter describes all the screens available through the Access Pointconfiguration pages, and is provided as a reference. To get to theconfiguration pages, browse to the Access Point by entering the URL inthe location bar of your browser. The URL is http://, for example http://192.168.1.1 . Whenyou have browsed to the Access Point, log in using your system password

(default admin).

If your Access Point is set up in Client Bridge Mode, see Chapter 5toconfigure your Access Point.

Main Menu At the left side of all screens is a main menu, as shown in Figure 18onpage 32. When you click on a topic from the main menu, that page willappear in the main part of the screen.

Welcome - displays the firmware version of the Access Point, allowsyou to change your password, and launch the Wizard

LAN Settings - allows you to configure IP address and subnet maskinformation, setup DHCP server parameters, and display the DHCPclient list.

Wireless Settings - enables /disables access from wireless computers,and provides facilities for improving the security of the wirelessnetwork.

System Tools - allows the administrator to perform maintenanceactivities on the Access Point.

Status and Logs - displays the current status and activity logs of theAccess Point.

Support - contains a comprehensive online help system

32 CHAPTER4: ACCESSPOINTCONFIGURATION


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Option Tabs Each corresponding menu page may also provide sub-sections which are

accessed through the use of tabs (see Figure 18for example). To access asub-section, simply click on the required tab.

Getting Help

On every screen, a Help button is available which provides access to thecontext-sensitive online help system. Click Help for further assistance andguidance relating to the current screen.

Welcome Screen Figure 18 Access Point Welcome Screen

The Welcomesection allows you to view the Notice board and to changeyour Password. You can also gain access to the Configuration Wizard.(See Accessing the Wizardon page 21for details).

Welcome Screen 33


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Notice Board Figure 19 Notice Board Screen

The Notice Board is used to display configuration warning messages.

Password Figure 20 Password Screen

Changing the Administration Password

You can change the password to prevent unauthorized access to theAdministration System. To do this:

1 Enter the current password in the Old Passwordfield

2 Enter the new password in the New Passwordfield

3 Enter the new password again in the Confirm Passwordfield

4 ClickApplyto save the new password



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The password is case sensitive.

If you have forgotten your password you need to reset the Access Point.See Forgotten Password and Reset to Factory Defaultson page 66

Wizard Figure 21 Wizard Screen

Click WIZARD... to launch the configuration wizard. Refer to Chapter 3for information on how to run the wizard.

LAN Settings The LAN Settings menu provides the following options:

Unit Configuration The LAN Settings screen is used to determine how the LAN IP address ofyour Access Point is obtained. It can be obtained automatically or you canmanually configure the IP address and optionally configure the DHCP

server.

LAN Settings 35


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Figure 22 Unit Configuration Screen

Dynamic IP Address

3Com recommends that you manually assign your Access Point a static IPaddress.

Select Dynamic IP Address (automatically allocated) and the screen shownin Figure 22is displayed. Check all your settings and clickApply.

If the Access Point is set to obtain an IP address automatically and isunable to contact a DHCP server then it will allocate itself an address inthe 169.254.xxx.xxx range.



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Manually setting the IP address

3Com recommends that you assign your Access Point a static IP address.

1 Select Unit Configurationand then select Static IP Address (to bespecified manually). The screen shown in Figure 23is displayed.

Figure 23 Unit Configuration Screen For Static IP Address

2 Enter the Access Point IP Addressand Subnet Maskin the LAN Settingsfield. The default static IP address of the Access Point is 192.168.1.1.

3 If you want to use the Access Point as a DHCP Server, click in the Enablecheck box. See DHCP Serverfor more information about configuringthe DHCP server.

4 Check all of your settings, and then clickApply.

DHCP Server

The DHCP server will give out addresses to both wired and wirelessclients.

Before enabling the DHCP Server, ensure that there are no other DHCPservers running on your network.

LAN Settings 37


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If you want the Access Point to function as a DHCP server on your

network, carry out the following:1 Select Unit Configurationand then select Static IP Address (to be

specified manually). The screen shown in Figure 23is displayed.

2 Enter the IP address details as described in Manually setting the IPaddressand click Enableagainst The Access Point acts as a DHCP Server.The screen shown in Figure 24is displayed.

Figure 24 DHCP Server Configuration Screen

3 ClickingAuto Rangeautomatically selects the largest range of addressesavailable for your network. Alternatively you can manually enter StartandEndaddresses for the IP address pool. The DHCP server supports up to amaximum of 253 addresses.

4 Enter any Default Gatewayand DNS(Domain Name Server) addresses ifrequired.

5 Check your settings and clickApply.



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DHCP Clients List Figure 25 DHCP Clients List Screen

The DHCP Clients List provides details on the devices that are connectedto the LAN. The list is only created when the Access Point is set up as aDHCP server. For each device that is connected to the LAN the followinginformation is displayed:

IP address The Internet Protocol (IP) address issued to the clientmachine.

Host Name The client machines host name, if configured.

MAC Address The Media Access Control (MAC) address of theclients network card.

Client Type Whether the client is connected to the access point bywired or wireless connection.

Fix This box is checked if the IP address is fixed to the MAC addressof the clients network card. Clients that have fixed addresses will get

the same IP address each time they connect.

As you connect more devices, the client list will grow to a maximumnumber of 253 clients.

The Releasebutton allows the lease time for the IP address that has beenissued to a device to be cleared. The lease time is set at 12 hours. If a PChas been switched off, using the Releasebutton would allow the 12 hour

lease time to be cleared. The IP address would then be available foranother device if there were no other IP addresses available.



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Wireless Settings

To improve the security of your wireless network, 3Com recommendsthat you:

1. Change the SSID from its default value - see page 40

2. Enable Encryption - see page 41

3. Enable Connection Control - see page 44

Configuration Figure 26 Configuration Screen

Enable Wireless Networking

Allows you to enable/disable the wireless section of your LAN. Whendisabled, no wireless PCs can gain access to your Wired or Wireless LANthrough this Access Point.

Channel Selection

The Channel Selector allows you to specify which channel the AccessPoint will transmit and receive on. If another Access Point nearby is usingthe same channel as you, there will be a reduction in the performance ofyour network. If this seems to be the case, you should select a differentchannel number. Usually the Wireless computers will scan to find thecorrect channel, but if they don't you must configure them to use thesame channel number as the Access Point.



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Valid channels are country dependent. See Channelson page 97for alist of channels approved by each country.

Clear Channel Selectallows the Access Point to automatically select anavailable channel when first powered on.

Service Area Name/SSID

This allows you to name your Wireless network. The field will accept anyalphanumeric string and has a maximum length of 32 characters. YourWireless computers must be configured with exactly the same name oryou will not be able to establish a connection. The Service Area Namemay also be referred to as ESSID depending on your networkingvendor. By default the Access Point uses the name 3Com. 3Comrecommends that you change the default name.

In order that your wireless computers can connect to the Access Point,

you must: Use Infrastructure Mode not Adhoc Mode.

Have the same Service Area Name as the Access Point.

Use the same encryption type and keys as the Access Point.

Ensure that the PC is included in the authorized Wireless PCs list ifConnection Control is enabled. See page 44.

Disable Broadcast SSID

This feature can be used to improve the security of your wireless network.When the tickbox is checked, the Access Point will not broadcast theService Area Name/SSID of your wireless network. This will preventunauthorized clients from detecting your SSID and attempting to connectto your network.

If you have a wireless client that can detect all the available SSIDs in yourarea, your client will not list the Access Point SSID when this feature isenabled.

3Com recommends that you install your wireless network with thisfeature disabled and then enable it once you have set up the Access Pointand wireless clients.

If you set the Access Point to Disable Broadcast SSID, the Access Point willnot allow access to clients with the SSID field set to any.



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Access Point Name

This option allows you to name the Access Point. The field accepts anyalphanumeric string upto a maximum of 32 characters. This option isuseful if you have several Access Point units and want to be able to easilyidentify them. For example, you may name them Marketing, Research,Admin.

Encryption When setting up wireless networks, it is important to remember that with

encryption disabled, anyone with a Wireless PC can eavesdrop on yournetwork. 3Com recommends that you get the network working withencryption disabled first and then enable it as the last step. This willsimplify setting up your network.

The Access Point supports two types of encryption:

WPA Wi-FI Protected Access (WPA) is a 256 bit encryption method

with keys that change over time. WEP Wireless Equivalent Privacy (WEP) is a 64 bit or 128 bit

encryption method with user configurable fixed keys.

WPA provides a higher level of security, provided by its longer key anddynamic changes made to the key over time. 3Com recommends thatyou use WPA with any clients which support it.

If you enable encryption on the Access Point, you must reconfigure yourwireless PCs to use exactly the same Encryption Type and Keys otherwisethe devices will not understand each other.

The encryption methods used by the Access Point secure data transmittedthrough wireless communications between the Access Point and itswireless clients. Enabling encryption has no security effect on data

transmitted through wired (Ethernet) connections or through yourconnections to the Internet.

Configuring WPAEncryption

The only configuration that is needed for WPA is to enter the pre-sharedkey. This key is used to start the dialog between the Access Point and theclient. During this dialog, a new key is agreed, making it more difficult toeavesdrop on wireless networks encrypted using WPA, than thoseencrypted using WEP. The pre-shared key can be entered as a 256 bit

series of hexadecimal digits or as a pass-phrase.



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Figure 27 Encryption Keys Screen showing WPA configuration

To enter the pre-shared key as hexadecimal digits:1 Select Enabled - Manual Pre-shared Keyfrom the WPA Encryption Type

drop-down box.

2 Enter a pair of hexadecimal digits in each of the 32 Keyfields. Each fieldcan contain a hexadecimal number from 00 to ff, for example 1a.

3 ClickApplyto generate the key.

To enter the pre-shared key as a pass-phrase:

1 Select Enabled - Pre-Shared Passphrasefrom the WPA Encryption Typedrop-down box.

2 Enter a phrase of between 8 and 63 characters in length in thePassphrasefield. This passphrase will be used to generate a 256 bit key.

3 ClickApplyto generate the key.

Configuring WEPEncryption

There are two levels of WEP encryption available, 64 bit (sometimesreferred to as 40 bit) and 128 bit. 128 bit will result in a higher level ofsecurity, but may cause a slight decrease in performance. Use theWireless Encryption Typebox to select the desired level.



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Encryption Keys

Figure 28 Encryption Keys Screen showing WEP configuration

A Key is a hexadecimal (0-9, A-F) number used to encrypt and decrypt thedata. There can be up to 4 keys and each key can be as long as 26 digits.The Access Point also offers a number of methods for converting plaintext into hex keys. The text is much easier to remember than hex keys but

it relies on your wireless adapters also supporting this feature. Differentmanufacturers have developed different ways of converting plain text andso interoperability is not guaranteed. If you are experiencing difficulty, theManual Hex Key method is supported by most vendors.

There are four methods available to generate the encryption keys:

Manual Key Entry - This method allows you to manually enter hex

keys. Virtually all manufacturers support this scheme. Enter a two digithexadecimal number in every box. Hexadecimal numbers are formedfrom 0-9 and A-F.

3Com Encryption String - This method is supported by 3Com Wirelessproducts. The string can contain any alphanumeric characters andmust be between 6 and 30 characters long. A single string willautomatically generate 4 unique keys for 64 or 128 bit WEP.

ASCII - This method is supported by some adapter cards runningunder Windows XP. The string must be exactly 5 characters for 64 bit



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WEP and 13 characters for 128 bit WEP. You must enter a separatestring for each of the 4 Keys. You can leave a string blank providedthis Key is not selected as the Active Transmit Key.

Passphrase - This is another common method and similar to the 3ComEncryption string. In 64 bit WEP, the passphrase will generate 4different keys. However, in 128 bit WEP, this method only generates 1key which is replicated for all 4 keys. The passphrase can be up to 31characters long and may contain any alphanumeric characters.

Select from the drop down list the key generation method you wish touse. If you have other wireless products choose the scheme that iscompatible with these, then enter the appropriate information.

If you encounter any difficulty when you enable WEP ensure that youcheck that each key on your wireless computer is exactly the same aseach key on your Access Point. In other words, Key number 1 on theWireless computer must have the same Hex number as Key number 1 onthe Access Point, Key 2 on the Wireless computer must match Key 2 onthe Access Point and so on.

TheActive Transmit Keyselects which of the 4 Keys the Access Point useswhen it transmits. You can change the selected key periodically toincrease the security of your network.

Some wireless adapters have only one key available on their WEPconfiguration page. If this is the case ensure it is the same as Key 1 on theAccess Point and that it is selected as the active transmit key.

Connection Control This screen allows you to determine if all Wireless PCs or just authorisedWireless PCs can use the Access Point. Select Connection Control todisplay the screen shown in Figure 29.


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Client List Figure 32 Client List Screen

The Wireless Client List provides details on the devices that are connectedto the Wireless LAN. The list is only created when Wireless Networking is

enabled. For each device that is connected to the Wireless LAN thefollowing information is displayed:

MAC Address The Media Access Control (MAC) address of theclients wireless network card.

Connection Speed The actual speed of the wireless connection. Thespeed depends on the specification of the wireless network card, thedistance from the Access Point and any items obstructing and

interfering with the signal.

Client Type The specification of the clients wireless network card.

As you connect more devices to the Wireless LAN, the client list will growto a maximum of 128 (the maximum number of wireless devices that theAccess Point can support).


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For instructions on how to import a profile, refer to the User Guide thataccompanies your 3Com Wireless Network Adapter(s).

If, once the profile is imported, the Wireless Network Adapter cannotconnect to the Access Point, check that:

the adapter is within range of the Access Point

ifConnection Controlhas been enabled in the Access Point, the MACaddress of the Wireless Network Adapter must be included in the list ofauthorised Wireless PCs.



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System Tools The main frame of the System Tools screen includes three administration

items: Restart, Configuration,and Upgrade(Figure 34).

Restart Figure 34 Restart Screen

If your Access Point is not operating correctly, you can choose to restartthe Access Point by selecting Restart the Access Point, simulating theeffect of power cycling the unit. No configuration information will be lostbut the log files will be erased. Any network users who are currentlyconnected to the Access Point will have their access interrupted whilst therestart takes place, and they may need to reboot their computers whenthe restart has completed and the Access Point is operational again.


System Tools 51


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Select the Configurationtab to display the Configurationscreen(Figure 35).

Backup Configuration

Click BACKUPto save the current Access Point configuration. You will beprompted to download and save a file to disk.

Restore Configuration Data

If you want to reinstate the configuration settings previously saved to afile, press Browseto locate the backup file on your computer, and thenclick RESTOREto copy the data into the Access Point's memory.

The password will remain unchanged.

Reset to Factory Default

If you want to reset the settings on your Access Point to those that wereloaded at the factory, click RESET. You will lose all your configurationchanges. The Access Point reverts to a DHCP client and will thereforerestart requiring a new IP address. To communicate with the Access Pointyou may need to rerun the DISCOVERY software to find out the IPaddress of the Access Point. See Appendix Afor more information. Youmay need to reconfigure and restart your computer to re-establishcommunication with the Access Point.

Resetting the Access Point to its Factory default settings is the only way toswitch between Access Point and Client Bridge modes.

Upgrade Figure 36 Upgrade Screen


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Status and Logs 53


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Status and Logs Figure 37 Status and Logs Screen

Selecting Status and Logsfrom the main menu displays the StatusandLogsscreens (Figure 37) in your Web browser window. The Statusscreendisplays a tabular representation of your network and Internet

connection.


Status Status displays the current unit status including a summary of the


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Status Status displays the current unit status, including a summary of theconfiguration

Logs Logs will allow you to view the events logged by the Access Point

You may be asked to refer to the information on the Statusand Logsscreens if you contact your supplier for technical support.

Support andFeedback

Figure 38 Support Screen


Selecting the Support tab from the Support/Feedback screen displays the


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Selecting the Supporttab from the Support/Feedbackscreen displays thesupport links screen, which contains a list of Internet links that provide

information and support concerning the Access Point (Figure 38).

Selecting the Feedback tab from the Support/Feedbackscreen displaysthe feedback screen, allows you to provide feedback to 3Com on theoperation of your Access Point (Figure 38). This screen should not be usedto obtain technical support.


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CLIENT BRIDGE MODE


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5CLIENTBRIDGEMODECONFIGURATION

What is ClientBridge Mode?

Client Bridge Mode is a secondary mode of the Access Point. When inClient Bridge Mode the Access point will act as a Wireless client, allowingone computer to access a wireless network. In this mode it will not longeract as an access point and will not provide wireless networking for otherclients.

Switching to ClientBridge Mode

To switch your Access Point to Client Bridge mode you must reset theAccess Point to its factory default settings.

When you reset the Access Point to its factory default settings you willlose all configuration information. 3Com recommends that backup yourconfiguration before changing the mode of the Access Point.

To switch the Access Point to Client Bridge mode:

1 Click on the System Toolsmenu followed by the Configurationtab.

2 Click the RESET...button in the Reset to Factory Defaultsection.

The Access Point will restart.

You may need to use the Discovery Application to reconnect to yourAccess Point after it has been reset to factory default settings. SeeAppendix A.

3 When the Country & Mode Selection screen appears, select:

a The country in which the Access Point is to operate.

b Client Bridge Modeas the operating mode of the Access Point.

4 ClickApply.

58 CHAPTER5: CLIENTBRIDGEMODECONFIGURATION

C fi i Cli t h i h b i h d i li id d


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Configuring Client

Bridge Mode

Once the Access Point has been switched into Client Bridge mode, you

can configure it using the configuration Wizard or by setting optionsmanually.

To configure the Access Point using the configuration wizard:

1 Click the Welcomemenu, followed by the Wizardtab.

2 Click the WIZARD...button and follow the instructions provide on-screen.

To configure the Access Point manually see the sections in the rest of thischapter.

Welcome Menu Figure 39 Access Point Welcome Screen

The Welcomesection allows you to view the Notice board and to changeyour Password. You can also gain access to the Configuration Wizard.The Welcomescreens are the same under Access Point mode and ClientBridge mode:

See Notice Boardon page 33for details of the Notice Boardscreen.

See Passwordon page 33for details of the Passwordscreen.

See Wizardon page 34for details of the Wizardscreen.

The configuration wizard will display options relevant to configuringClient Bridge mode and will therefore differ from those shown in

Chapter 3.

LAN Settings 59

LAN Settings Th LAN S tti ll t t th IP Add d S b t


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LAN Settings The LAN Settings screen allows you to set the IP Address and Subnet

Mask of your Access Point.

Figure 40 Unit Configuration Screen

To change the LAN settings for your Access Point:

1 Select Unit Configuration. The screen shown in Figure 40is displayed.

2 Enter an IP Addressand Subnet Maskin the LAN Settings field. Thedefault static IP address of the Access Point is 192.168.1.1.

You must set a static IP address for your Access Point when in ClientBridge mode. Client Bridge mode does not support DHCP. The AccessPoint must be allocated a free address within your wireless networkssubnet to function correctly.

3 Check all of your settings, and then clickApply.

Wireless Settings The Wireless Settings menu allows to enter the details of the wirelessnetwork to which you are connecting. These can be obtained from yournetwork administrator.




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Enable Wireless Networking

Allows you to enable/disable wireless access to your LAN. When disabled,you will not be able to gain access to your Wireless LAN through thisAccess Point.

Service Area Name/SSID

Enter the name of your wireless network. If you do not enter the namecorrectly, you will not be able to connect to your wireless network.

Device Name

This option allows you to name the Access Point. The field accepts anyalphanumeric string upto a maximum of 32 characters. This option allowsyour network administrator to identify wireless clients. In Client Bridgemode, Access Points are commonly named after their user or location (iffixed).

Encryption When setting up wireless networks, it is important to remember that withencryption disabled, anyone with a Wireless PC can eavesdrop on yournetwork. The Access Point supports two types of encryption:

WPA Wi-FI Protected Access (WPA) is a 256 bit encryption methodwith keys that change over time.

WEP Wireless Equivalent Privacy (WEP) is a 64 bit or 128 bitencryption method with user configurable fixed keys.


WPA provides a higher level of security, provided by its longer key anddynamic changes made to the key over time 3Com recommends that


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dynamic changes made to the key over time. 3Com recommends that

you use WPA if supported by your wireless network.

The Access Point can only use one type of encryption to access thewireless network. If you enable WPA, the options for WEP will not beavailable. If you enable WEP, the options for WPA will not be available.

Figure 42 Encryption Keys Screen

To set up WPA encryption on your Access Point:

1 In the WPA Encryption Type drop-down box select one of the Enabled

options:

Select Enabled - Manual Pre-shared keyif you have been supplied aset of hexadecimal digits

Select Enabled - Pre-shared Passphraseif you have been suppled witha passphrase

2 Enter the pre-shared key or passphrase in the fields provided.

For a pre-shared key, enter a pair of hexadecimal digits in each of the32 Keyfields, as supplied by your network administrator. Each fieldcan contain a hexadecimal number from 00 to ff, for example 1a.

For a pre-shared passphrase enter the passphrase in the Passphrasefield.

3 Click Apply to enter the key.


To set up WEP encryption on your Access Point:

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1 In the WEP Encryption Type drop-down box select the strength of theencryption supported by your wireless network.

2 Select the method used to generate the WEP encryption key. There arefour methods available:

Manual Key Entry - This method allows you to manually enter hexkeys. Virtually all manufacturers support this scheme. Enter a two digithexadecimal number in every box. Hexadecimal numbers are formed

from 0-9 and A-F. 3Com Encryption String - This method is supported by 3Com Wireless

products. The string can contain any alphanumeric characters andmust be between 6 and 30 characters long. A single string willautomatically generate 4 unique keys for 64 or 128 bit WEP.

ASCII - This method is supported by some adapter cards runningunder Windows XP. The string must be exactly 5 characters for 64 bit

WEP and 13 characters for 128 bit WEP. You must enter a separatestring for each of the 4 Keys. You can leave a string blank providedthis Key is not selected as the Active Transmit Key.

Passphrase - This is another common method and similar to the 3ComEncryption string. In 64 bit WEP, the passphrase will generate 4different keys. However, in 128 bit WEP, this method only generates 1key which is replicated for all 4 keys. The passphrase can be up to 31

characters long and may contain any alphanumeric characters.3 ClickApplyto enter the key.


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Logs screens are the same under Access Point mode and Client Bridgemode:


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See Support and Feedbackon page 54for details of the SupportandFeedback screens.

TROUBLESHOOTING


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6

Basic ConnectionChecks

Check that the Access Point is connected to your switch or hub andthat all the equipment is powered on. Check that the LAN port linkstatus LED on the Access Point are illuminated, and that anycorresponding LEDs are also illuminated.

Ensure that the computers have completed their start-up procedureand are ready for use. Some network interfaces may not be correctlyinitialised until the start-up procedure has completed.

If the link status LED does not illuminate for the LAN port, check thatyou do not have a faulty cable. Try a different cable. Check also thatthe Uplink/Normal switch is in the correct position.

Browsing to theAccess PointConfigurationScreens

If you have connected your Access Point, admin computer and switchtogether but cannot browse to the Access Point configuration screens,

check the following:

Confirm that the physical connection between your computer and theAccess Point is OK, and that the link status LEDs on the Access Pointand NIC are illuminated and indicating the same speed (10Mbps or100Mbps). Some NICs do not have status LEDs, in which case adiagnostic program may be available that can give you thisinformation.

Ensure that your computer is configured correctly. Make sure that thecomputer can communicate with other devices on the network.Ensure that the NIC is configured for autonegotiation.

Ensure that you do not have a Web proxy enabled on your computer.Go to the Control Paneland click on Internet Options. Select theConnectionstab and click on the LAN Settingsbutton at the bottom.Make sure that the Use Proxy Serveroption is unchecked.

66 CHAPTER6: TROUBLESHOOTING

When entering the address of the Access Point into your web browser,ensure that you use the full URL including the http:// prefix (e.g.


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http://192.168.1.1).

If you cannot browse to the Access Point, re-run the DISCOVERYsoftware described in Appendix Ato discover the Access Point and theIP address it has been allocated from the DHCP server. If there is noDHCP server on your network, the DISCOVERY software changes theIP address of the Access Point so that it is in the same subnet as youradmin computer.

ForgottenPassword and Resetto Factory Defaults

If you can browse to the Access Point configuration screen but cannot logon because you do not know or have forgotten the password, follow thesteps below to reset the Access Point to its factory default configuration.

CAUTION:All your configuration changes will be lost, and you will needto run the configuration wizard again before you can re-establish your

wireless network. All other computer users will lose their networkconnections whilst this process is taking place, so choose a time whenthis would be convenient.

1 Remove power from the Access Point.

2 Hold down the Resetbutton on the rear of the unit and re-apply powerto the Access Point. The Alert LED will flash as the Access Point starts up,and after approximately 30 seconds will start to flash more slowly(typically 2 seconds on, 2 seconds off). Once the Alert LED has started toflash slowly. Keep Resetbutton held down and remove power from theAccess Point.

3 Release the Resetbutton.

4 Re-apply power to the Access Point, and when the start-up sequence hascompleted, browse to the IP address of the Access Point and run the

configuration wizard. You may need to restart your computer before youattempt this.

5 When the configuration wizard has completed, you may reconnect yournetwork as it was before.

Wireless

Networking

Ensure that you have a Wi-Fi certified 802.11b or 802.11g wireless

adapter for each wireless computer, and that it is correctly installedand configured. Verify that each Wireless computer has eitherWindows 95 or higher or MAC OS 8.5 or higher.


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Access Point then try initiating a search manually if the client softwaresupports this feature or manually set the channel on your wireless


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computer to correspond to the Access Point channel number. Pleaserefer to your Wireless computer adapter documentation and vendorto do this.

Speed of connection: The 802.11b standard will automatically choosethe best speed depending on the quality of your connection. As thesignal quality weakens then the speed falls back to a lower speed. Thespeeds are 11Mbps, 5.5Mbps, 2Mbps and 1Mbps. In general the

closer you are to the Access Point the better the speed. If you are notachieving the speed you had anticipated then try moving the antennaon the Access Point or moving the Wireless computer closer to theAccess Point. In an ideal network the Access Point should be locatedin the centre of the network with Wireless computers distributedaround it. Applications are generally available with the computerwireless card to carry out a site survey. Use this application to find theoptimal siting for your wireless computer. Consult your Wireless Card

documentation and vendor for more details.

Alert LED The Alert LED will flash when the Access Point unit is first powered upwhile the system software checks the hardware for proper operation.Once the Access Point has started normal operation, the Alert LED will goout.

If the Alert LED does not go out following start up, but illuminatescontinuously, this indicates that the software has detected a possiblefault with the hardware. Remove power from the Access Point, wait10 seconds and then re-apply power. If the Alert LED comes oncontinuously again, then a fault has been detected. Locate the copy ofthe Access Point software on the accompanying CD-ROM or 3Comweb site (http://www.3com.com) and upload it to the Access Point tosee if this clears the fault (refer to Recovering from CorruptedSoftware below). If this does not fix the problem, contact yoursupplier for further advice.

Recovering fromCorrupted Software

If the Alert LED remains permanently on following power-up, it is possiblethat the system software has become corrupted. In this condition, theAccess Point will enter a recovery state; DHCP is disabled, and the LAN

IP address is set to 192.168.1.1. Follow the instructions below to uploada new copy of the system software to a Access Point unit in this state.

Frequently Asked Questions 69

Ensure that one of your computers has a copy of the new software imagefile stored on its hard disk or available on CD-ROM.


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The latest software is available on 3Coms Web site at:

www.3com.com.

1 Remove power from the Access Point and connect the admin computerto the LAN port.

2 You will need to reconfigure this computer with the following static IP

address information:

IP address: 192.168.1.2

Subnet mask: 255.255.255.0

Default Gateway address: 192.168.1.1

3 Restart the computer, and re-apply power to the Access Point.

4 Using the Web browser on the computer, enter the following URL in thelocation bar:

http://192.168.1.1.

This will connect you to the Microcode Recovery utility in the AccessPoint.

5 Follow the on-screen instructions. Enter the path and filename of thesoftware image file.

6 When the upload has completed, the Access Point will restart, run theself-test and, if successful, resume normal operation. The Alert LED willgo out.

7 Reconnect your Access Point to your network. Do not forget toreconfigure the computer you used for the software upload.

If the Access Point does not resume normal operation following theupload, it may be faulty. Contact your supplier for advice.

Frequently AskedQuestions

How do I reset the Access Point to Factory Defaults?

See Forgotten Password and Reset to Factory Defaultsonpage 66.

How many wireless clients does the Access Point support?


A maximum of 128 wireless clients are supported.

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There is a single LAN ports on the Access Point. How are additionalcomputers connected?

You can expand the number of connections available on your LANby using hubs, switches and wireless access points connected tothe Access Point. 3Com wireless access points and OfficeConnecthubs and switches provide a simple, reliable means of expandingyour network; contact your supplier for more information, or visit:

http://www.3com.com/

Where can I download software upgrades for the Access Point?

Upgrades to the Access Point software are posted on the 3Comsupport web site, accessible by visiting:

http://www.3com.com.

What other online resources are there?

The 3Com Knowledgebase at:

http://knowledgebase.3com.com

is a database of technical information covering all 3Com products.It is updated daily with information from 3Com technical support

services, and it is available 24 hours a day, 7 days a week.

USINGDISCOVERY


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A

Running theDiscoveryApplication

3Com provides a user friendly Discovery application for detecting theAccess Point on the network.

If you are unable to use the Discovery application, the Access Point oninitial power-up will attempt to obtain an IP address from your local DHCPserver. Consult your DHCP Server log to obtain the IP address that wasallocated to your Access Point.

Windows Installation(95/98/2000/Me/NT)

1 Insert the Access Point CD-ROM in the CD-ROM drive on your computer.A menu will appear; select Discovery.

Discovery will find the Access Point even if it is unconfigured or

misconfigured.

Figure 44 Discovery Welcome Screen

72 APPENDIXA: USINGDISCOVERY

2 When the Welcomescreen is displayed, select the NIC from which theAccess Point will be discovered. Then click on Nextand wait until the

application discovers the Access Points connected to your LAN


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application discovers the Access Points connected to your LAN.

Figure 45 Discovered Access Point Screen

3 Figure 45shows an example Discovered Devices screen. Highlight theWireless 11g Access Pointby clicking on it, and press Next.

Figure 46 Discovery Finish Screen

4 Click on Finishto launch a web browser and display the login page forthe Access Point.

BIP ADDRESSING


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B

The InternetProtocol Suite

The Internet protocol suite consists of a well-defined set ofcommunications protocols and several standard application protocols.Transmission Control Protocol/Internet Protocol (TCP/IP) is probably themost widely known and is a combination of two of the protocols (IP andTCP) working together. TCP/IP is an internationally adopted andsupported networking standard that provides connectivity betweenequipment from many vendors over a wide variety of networking

technologies.

Managing theAccess Point overthe Network

To manage a device over the network, the Access Point must be correctlyconfigured with the following IP information:

An IP address

A Subnet Mask

IP Addresses andSubnet Masks

Each device on your network must have a unique IP address to operatecorrectly. An IP address identifies the address of the device to which datais being sent and the address of the destination network. IP addresseshave the format n.n.n.x where n is a decimal number between 0 and 255and x is a number between 1 and 254 inclusive.

However, an IP Address alone is not enough to make your device operate.In addition to the IP address, you need to set a subnet mask. All networksare divided into smaller sub-networks and a subnet mask is a numberthat enables a device to identify the sub-network to which it isconnected.

74 APPENDIXB: IP ADDRESSING

For your network to work correctly, all devices on the network must have:

The same sub-network address.

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The same subnet mask.

The only value that will be different is the specific host device number.This value must always be unique.

An example IP address is 192.168.100.8. However, the size of thenetwork determines the structure of this IP Address. In using the Access

Point, you will probably only encounter two types of IP Address andsubnet mask structures.

Type One

In a small network, the IP address of 192.168.100.8 is split into twoparts:

Part one (192.168.100) identifies the network on which the device

resides. Part two (.8) identifies the device within the network.

This type of IP Address operates on a subnet mask of 255.255.255.0.

See Table 3for an example about how a network with three computersand a Access Point might be configured.

Table 3 IP Addressing and Subnet Masking

Type Two

In larger networks, where there are more devices, the IP address of192.168.100.8 is, again, split into two parts but is structured differently:

Part one (192.168) identifies the network on which the deviceresides.

Part two (.100.8) identifies the device within the network.

Device IP Address Subnet Mask

PC 1 192.168.100.8 255.255.255.0

PC 2 192.168.100.33 255.255.255.0

PC 3 192.168.100.188 255.255.255.0

Access Point 192.168.100.72 255.255.255.0

How does a Device Obtain an IP Address and Subnet Mask? 75

This type of IP Address operates on a subnet mask of 255.255.0.0.

See Table 4 for an example about how a network (only four computersrepresented) and a Access Point might be configured


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See Table 4for an example about how a network (only four computersrepresented) and a Access Point might be configured.

Table 4 IP Addressing and Subnet Masking

How does a DeviceObtain an IP

Address and SubnetMask?

There are three different ways to obtain an IP address and the subnetmask. These are:

Dynamic Host Configuration Protocol (DHCP) Addressing

Static Addressing

Automatic Addressing (Auto-IP Addressing)

DHCP Addressing The Access Point contains a DHCP server, which allows computers onyour network to obtain an IP address and subnet mask automatically.

DHCP assigns a temporary IP address and subnet mask which getsreallocated once you disconnect from the network.

DHCP will work on any client Operating System such as Windows95,Windows 98 or Windows NT 4.0. Also, using DHCP means that the sameIP address and subnet mask will never be duplicated for devices on thenetwork. DHCP is particularly useful for networks with large numbers ofusers on them.

Static Addressing You must enter an IP Address and the subnet mask manually on everydevice. Using a static IP and subnet mask means the address ispermanently fixed.

Auto-IP Addressing Network devices use automatic IP addressing if they are configured toacquire an address using DHCP but are unable to contact a DHCP server.Automatic IP addressing is a scheme where devices allocate themselves

Device IP Address Subnet Mask

PC 1 192.168.100.8 255.255.0.0

PC 2 192.168.201.30 255.255.0.0

PC 3 192.168.113.155 255.255.0.0

PC 4 192.168.002.230 255.255.0.0

Access Point 192.168.002.72 255.255.0.0

76 APPENDIXB: IP ADDRESSING

an IP address at random from the industry standard subnet of169.254.x.x (with a subnet mask of 255.255.0.0). If two devices allocate

themselves the same address, the conflict is detected and one of thedevices allocates itself a new address


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,devices allocates itself a new address.

Automatic IP addressing support was introduced by Microsoft in theWindows 98 operating system and is also supported in Windows 2000.

CTECHNICALSPECIFICATIONS


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C

This section lists the technical specifications for the OfficeConnectWireless 11g Access Point.

Wireless 11g AccessPoint

Interfaces

LAN connection - 10Mbps/100Mbps dual speed Ethernet port(10BASE-T/100BASE-TX)

WLAN Interfaces

Standard IEEE 802.11g, Direct Sequence Spread Spectrum (DSSS)Transmission rate: 54Mbps, automatic fallback to 48, 36, 24, 18, 12, or6 MbpsMaximum channels: 14Range up to 304.8m (1000ft)Frequency: (US/Canada/Europe) 2.400-2.4835 GHzSensitivity: 6, 12, 18, 24, 36, 48 Mbps: -85 dBm;

54 Mbps -66 dBm typicalModulation: CCK, BPSK, QPSK, OFDMEncryption: 40/64 bit WEP, 128 bit WEP, WPAMaximum clients: 128O/P Power: 18dBm

Standard IEEE 802.11b, Direct Sequence Spread Spectrum (DSSS)Transmission rate: 11bps, automatic fallback to 5.5, 2, or 1 MbpsMaximum channels: 14Range up to 304.8m (1000ft)Frequency: (US/Canada/Europe) 2.400-2.4835 GHzSensitivity: 1, 2, 5.5 Mbps: -85 dBm; 11 Mbps -82 dBm typicalModulation: CCK, BPSK, QPSK, OFDMEncryption: 40/64 bit WEP, 128 bit WEP, WPA

Maximum clients: 128O/P Power 18dBm

78 APPENDIXC: TECHNICALSPECIFICATIONS

Operating Temperature

0 C to 40 C (32 F to 105 F)

Power


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Power

7VA, 23.9 BThU/hr

Humidity

0 % to 90 % (non-condensing) humidity

Dimensions Width = 220 mm (8.7 in.)

Depth = 135 mm (5.3 in.)

Height = 24 mm (1 in.)

Weight

Approximately 500 g (1.1 lbs)

Standards Functional: ISO 8802/3IEEE 802.3IEEE 802.11b, 802.11g, Wi-Fi

Safety: UL60950CSA 22.2 #60950

IEC 60950EN 60950

EMC: EN 55022 Class BEN 55024CISPR 22FCC Part 15 Class B*ICES-003 Class BCNS 13438 Class AETSI EN 301 48917

Radio CFR 47 FCC Part 15.207, 15.209, 15.247 and 15.249.ETS 300 328 (2.4 GHz ISM band wide band transmissionsystems.RSS-210

Environmental: EN 60068 (IEC 68)

79

*See FCC Statementon page 97for conditions of operation.

System Requirements Operating Systems


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The Access Point will support the following Operating Systems:

Windows 95/98

Windows NT 4.0

Windows ME

Windows 2000

Windows XP

Mac OS 8.5 or higher

Unix

Ethernet Performance The Access Point complies to the IEEE 802.3i, u and x specifications.

Wireless Performance The Access Point has been designed to conform to the Wi-Fiinteroperability test standard.

Cable Specifications The Access Point supports the following cable types and maximumlengths:

Category 3 (Ethernet) or Category 5 (Fast Ethernet or Dual SpeedEthernet) Twisted Pair shielded and unshielded cable types.

Maximum cable length of 100m (327.86 ft).


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DSAFETYINFORMATION


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D

Important SafetyInformation

WARNING: Warnings contain directions that you must follow for yourpersonal safety. Follow all directions carefully.You must read the following safety information carefully before youinstall or remove the unit:

WARNING: The Access Point generates and uses radio frequency (rf)energy. In some environments, the use of rf energy is not permitted. Theuser should seek local advice on whether or not rf energy is permittedwithin the area of intended use.

WARNING: Exceptional care must be taken during installation andremoval of the unit.

WARNING: Only stack the Access Point with other OfficeConnect units.

WARNING: To ensure compliance with international safety standards,only use the power adapter that is supplied with the unit.

WARNING: The socket outlet must be near to the unit and easilyaccessible. You can only remove power from the unit by disconnectingthe power cord from the outlet.

WARNING: This unit operates under SELV (Safety Extra Low Voltage)conditions according to IEC 60950. The conditions are only maintainedif the equipment to which it is connected also operates under SELVconditions.

WARNING: There are no user-replaceable fuses or user-serviceableparts inside the Access Point. If you have a physical problem with the

unit that cannot be solved with problem solving actions in this guide,contact your supplier.

82 APPENDIXD: SAFETYINFORMATION

WARNING: Disconnect the power adapter before moving the unit.

WARNING: RJ-45 ports. These are shielded RJ-45 data sockets. Theycannot be used as telephone sockets. Only connect RJ-45 datah k


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connectors to these sockets.

WichtigeSicherheitshinweise

VORSICHT:Warnhinweise enthalten Anweisungen, die Sie zu Ihrer

eigenen Sicherheit befolgen mssen. Alle Anweisungen sind sorgfltigzu befolgen.Sie mssen die folgenden Sicherheitsinformationen sorgfltigdurchlesen, bevor Sie das Gerts installieren oder ausbauen:

VORSICHT:Der Access Point erzeugt und verwendet Funkfrequenz (RF).In manchen Umgebungen ist die Verwendung von Funkfrequenz nichtgestattet. Erkundigen Sie sich bei den zustndigen Stellen, ob dieVerwendung von Funkfrequenz in dem Bereich, in dem der BluetoothAccess Point eingesetzt werden soll, erlaubt ist.

VORSICHT:Bei der Installation und beim Ausbau des Gerts ist mithchster Vorsicht vorzugehen.

VORTSICHT:Stapeln Sie das Gerts nur mit anderen OfficeConnect

Gertes zusammen.

VORSICHT:Aufgrund von internationalen Sicherheitsnormen darf dasGert nur mit dem mitgelieferten Netzadapter verwendet werden.

VORSICHT:Die Netzsteckdose mu in der Nhe des Gerts und leichtzugnglich sein. Die Stromversorgung des Gerts kann nur durchHerausziehen des Gertenetzkabels aus der Netzsteckdose

unterbrochen werden.

VORSICHT:Der Betrieb dieses Gerts erfolgt unter denSELV-Bedingungen (Sicherheitskleinstspannung) gem IEC 60950.Diese Bedingungen sind nur gegeben, wenn auch die an das Gertangeschlossenen Gerte unter SELV-Bedingungen betrieben werden.

83

VORSICHT:Es sind keine von dem Benutzer zu ersetzende oder zuwartende Teile in dem Gert vorhanden. Wenn Sie ein Problem mit

dem Access Point haben, das nicht mittels der Fehleranalyse in dieserAnleitung behoben werden kann, setzen Sie sich mit Ihrem Lieferanteni V bi d


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in Verbindung.

VORSICHT:Vor dem Ausbau des Gerts das Netzadapterkabelherausziehen.

VORSICHT: RJ-45-Anschlsse.Dies sind abgeschirmte

RJ-45-Datenbuchsen. Sie knnen nicht als Telefonanschlubuchsenverwendet werden. An diesen Buchsen drfen nur RJ-45-Datensteckerangeschlossen werden.

Consignesimportantes descurit AVERTISSEMENT: Les avertissements prsentent des consignes que

vous devez respecter pour garantir votre scurit personnelle. Vousdevez respecter attentivement toutes les consignes.Nous vous demandons de lire attentivement les consignes suivantes descurit avant dinstaller ou de retirer lappareil:

AVERTISSEMENT:LAccess Point fournit et utilise de l'nergieradiolectrique (radio frquence -rf). L'utilisation de l'nergie

radiolectrique est interdite dans certains environnements. L'utilisateurdevra se renseigner sur l'autorisation de cette nergie dans la zoneprvue.

AVERTISSEMENT: Faites trs attention lors de l'installation et de ladpose du groupe.

AVERTISSEMENT: Seulement entasser le moyer avec les autres moyeux

OfficeConnects.

AVERTISSEMENT: Pour garantir le respect des normes internationalesde scurit, utilisez uniquement l'adaptateur lectrique remis avec cetappareil.

AVERTISSEMENT: La prise secteur doit se trouver proximit delappareil et son accs doit tre facile. Vous ne pouvez mettre lappareil

hors circuit qu'en dbranchant son cordon lectrique au niveau decette prise.

84 APPENDIXD: SAFETYINFORMATION

AVERTISSEMENT: Lappareil fonctionne une tension extrmementbasse de scurit qui est conforme la norme CEI 60950. Ces

conditions ne sont maintenues que si l'quipement auquel il estraccord fonctionne dans les mmes conditions.


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AVERTISSEMENT: Il ny a pas de parties remplaceables par lesutilisateurs ou entretenues par les utilisateurs lintrieur du moyeu. Sivous avez un problme physique avec le moyeu qui ne peut pas trersolu avec les actions de la rsolution des problmes dans ce guide,contacter votre fournisseur.

AVERTISSEMENT: Dbranchez l'adaptateur lectrique avant de retirercet appareil.

AVERTISSEMENT: Ports RJ-45.Il s'agit de prises femelles blindes dedonnes RJ-45. Vous ne pouvez pas les utiliser comme prise detlphone. Branchez uniquement des connecteurs de donnes RJ-45 surces prises femelles.

EENDUSERSOFTWARELICENSE

AGREEMENT


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E

3Com CorporationEND USER SOFTWARE LICENSE AGREEMENT

YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE DOWNLOADING, INSTALLING AND USING THISPRODUCT, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION ("3COM") TO ITS CUSTOMERS FOR THEIR USE ONLY AS SET FORTHBELOW. DOWNLOADING, INSTALLING OR OTHERWISE USING ANY PART OF THE SOFTWARE OR DOCUMENTATION INDICATES THAT YOUACCEPT THESE TERMS AND CONDITIONS. IF YOU DO NOT AGREE TO THE TERMS AND CONDITIONS OF THIS AGREEMENT, DO NOTDOWNLOAD, INSTALL OR OTHERWISE USE THE SOFTWARE OR DOCUMENTATION, DO NOT CLICK ON THE "I AGREE" OR SIMILAR BUTTON.AND IF YOU HAVE RECEIVED THE SOFTWARE AND DOCUMENTATION ON PHYSICAL MEDIA, RETURN THE ENTIRE PRODUCT WITH THESOFTWARE AND DOCUMENTATION UNUSED TO THE SUPPLIER WHERE YOU OBTAINED IT.

LICENSE: 3Com grants you a nonexclusive, nontransferable (except as specified herein) license to use the accompanying software program(s) inexecutable form (the "Softwa

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