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Part No. DUA100A-72AAA02

Published February 2006

OfficeConnect®

User Guide

Model

OfficeConnect ADSL Wireless 54Mbps 11g Firewall Router

WL-552

3Com Corporation

350 Campus Drive,

Marlborough, MA

USA 01752-3064

reproduced in any form or by any means or used to make any derivative work (such as translation,

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please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are

provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense.

Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or

as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are

provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights

only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable.

You agree not to remove or deface any portion of any legend provided on any licensed program or

documentation contained in, or delivered to you in conjunction with, this User Guide.

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

be registered in other countries.

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

Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows

NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of

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Wi-Fi and the Wi-Fi logo are registered trademarks of the WI-Fi 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 are

associated.

ENVIRONMENTAL STATEMENT

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

are committed to:

Establishing environmental performance standards that comply with national legislation and regulations.

Conserving energy, materials and natural resources in all operations.

Reducing the waste generated by all operations. Ensuring that all waste conforms to recognized environmental

standards. Maximizing the recyclable and reusable content of all products.

Ensuring that all products can be recycled, reused and disposed of safely.

Ensuring that all products are labelled according to recognized environmental standards.

Improving our environmental record on a continual basis.

End of Life Statement

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

Regulated Materials Statement

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

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from sustainable, managed forests; it is

fully biodegradable and recyclable, and is completely chlorine-free. The varnish is environmentally-friendly, and

the inks are vegetable-based with a low heavy-metal content.

CONTENTS

ABOUT THIS GUIDE

Naming Convention 7

Conventions 8

Feedback About This User Guide 8

Related Documentation 9

Example:

■OfficeConnect ADSL Wireless 11g Firewall Router User Guide

■Part Number DUA100A-72AAA01

■Page 24

Do not use this e-mail address for technical support questions. For

information about contacting Technical Support, please refer to

Appendix C.

Documentation

In addition to this guide, each Router document set includes one

Installation Guide. This guide contains the instructions you need to install

and configure your Router.

10 ABOUT THIS GUIDE

1INTRODUCING THE ROUTER

Welcome to the world of networking with 3Com®. In the modern

business environment, communication and sharing information is crucial.

Computer networks have proved to be one of the fastest modes of

communication but, until recently, only large businesses could afford the

networking advantage.

OfficeConnect ADSL

Wireless 11g

Firewall Router

The OfficeConnect ADSL Wireless 11g Firewall Router is designed to

provide a cost-effective means of sharing a single broadband Internet

connection amongst several wired and wireless computers. The Router

also provides protection in the form of an electronic “firewall” preventing

anyone outside of your network from seeing your files or damaging your

computers. The Router can also prevent your users from accessing Web

sites which you find unsuitable.

Figure 1 shows an example network without a Router. In this network,

only one computer is connected to the Internet. This computer must

always be powered on for the other computers on the network to access

the Internet.

12 CHAPTER 1: INTRODUCING THE ROUTER

Figure 1 Example Network Without a Router

When you use the Router in your network (Figure 2), it becomes your

connection to the Internet. Connections can be made directly to the

Router, or to an OfficeConnect Switch or Hub, expanding the number of

computers you can have in your network.

Figure 2 Example Network Using a Firewall Router

Router Advantages 13

Router Advantages The advantages of the Router include:

■Shared Internet connection for both wired and wireless computers

■High speed 802.11g wireless networking

■No need for a dedicated, “always on” computer serving as your

Internet connection

■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)

■Acts as a Virtual server to enable remote access to Web, FTP, and other

services on your network

■Security — Firewall protection against Internet hacker attacks and

encryption to protect wireless network traffic

Package Contents The Router kit includes the following items:

■One OfficeConnect ADSL Wireless 11g Firewall Router

■One power adapter for use with the Router

■Four rubber feet

■One Telephone Cable

■One CD-ROM containing this User 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.

14 CHAPTER 1: INTRODUCING THE ROUTER

Minimum System

and Component

Requirements

Your Router requires that the computer(s) and components in your

network be configured with at least the following:

■A computer with an operating system that supports TCP/IP

networking protocols (for example Windows 98/NT/Me/2000/XP, Unix,

Mac OS 8.5 or higher).

■An Ethernet 10 Mbps or 10/100 Mbps NIC for each computer to be

connected to the four-port switch on your Router.

■An 802.11b or 802.11g wireless NIC.

■An active ADSL subscription and connection.

■A Web browser that supports JavaScript, such as Netscape 4.7 or

higher, Internet Explorer 5.0 or higher, or Mozilla 1.2.1 or higher.

Physical Features The front panel of the Router contains a series of indicator lights (LEDs)

that help describe the state of various networking and connection

operations.

Figure 3 Router - Front Panel

1Power LED

Green

Indicates that the Router is powered on.

2SYNC LED

Green

If the LED is on it indicates that DSL connection is present. This LED

flashes during configuration at power up.

OfficeConnect ADSL Wireless 11g Firewall Router

3CRWDR100A-72

LAN Status

Power SYNC Online WLAN 1 2 3 4

Green = 100M, Yellow = 10M, Flash = Activity

Physical Features 15

3Online LED

Green

If this LED is on, your username/password has been authenticated

successfully with your ISP.

4 Wireless LAN (WLAN) Status LED

Green

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

is flashing, the link is OK and data is being transmitted or received. If the

LED is off, the Wireless LAN has been disabled in the Router, or there is a

problem. Refer to Chapter 6 “Troubleshooting”.

5 LAN Status LEDs

Green

If the LED is on, the link between the port and the next piece of network

equipment 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, or the

connected device is switched off, or there is a problem with the

connection (refer to Chapter 6 “Troubleshooting”). The port will

automatically adjust to the correct speed and duplex.

The rear panel (Figure 4) of the Router contains four LAN ports, one ADSL

port, a reset button, a power switch, and a power adapter socket.

Figure 4 Router - Rear Panel

6 Wireless Antennae

The antennae on the product should be placed in a ‘V’ position when

initially installed.

CAUTION: Do not force the antennae beyond their mechanical stops.

Rotating the antennae further may cause damage.

ADSL ResetPower LAN4 LAN3 LAN2 LAN1

12 VDC

1A MAX

7 98 11106

16 CHAPTER 1: INTRODUCING THE ROUTER

7ADSL Port

Using the RJ11 cable provided, you should connect your Router to the

telephone socket via a splitter.

8 Power Adapter Socket

Only use the power adapter that is supplied with this Router. Do not use

any other adapter.

9 Reset Button

If you want to reset your Router to factory default settings, and cannot

access the web management interface (for example, due to a lost

password), then you may use this button. Refer to “Forgotten Password

and Reset to Factory Defaults” on page 104 for further details.

10 Power Switch

Push this switch to the “in” position to turn the unit on. In the “out”

position, the unit is off.

11 Ethernet Ports

Using suitable RJ45 cables, you can connect your Router to a computer,

or to any other piece of equipment that has an Ethernet connection (for

example, a hub or a switch). These ports have an automatic MDI/MDIX

feature, which means either straight-through or a crossover cable can be

used.

2INSTALLING THE ROUTER

Introduction This chapter will guide you through a basic installation of the Router,

including:

■Connecting the Router to the Internet.

■Connecting the Router to your network.

■Setting up your computers for networking with the Router.

Safety Information Please note the following:

WARNING: Please read the “Safety Information” section in Appendix C

before you start.

VORSICHT: Bitte lesen Sie den Abschnitt “Wichtige Sicherheitshinweise”

sorgfältig durch, bevor Sie das Gerät einschalten.

AVERTISSEMENT: Veuillez lire attentivement la section “Consignes

importantes de sécurité” avant de mettre en route.

Positioning the

Router

You should place the Router in a location that:

■is conveniently located for connection to the telephone socket.

■is centrally located to the wireless computers that will connect to the

Router. A suitable location might be on top of a high shelf or similar

furniture to optimize wireless connections to computers in both

horizontal and vertical directions, allowing wider coverage.

■allows convenient connection to the computers that will be connected

to the four LAN ports on the rear panel, if desired.

■allows easy viewing of the front panel LED indicator lights, and access

to the rear panel connectors, if necessary.

18 CHAPTER 2: INSTALLING THE ROUTER

When positioning your Router, ensure:

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

■Cabling is away from power lines, fluorescent lighting fixtures, and

sources of electrical noise such as radios, transmitters and broadband

amplifiers.

■Water or moisture cannot enter the case of the unit.

■Air flow around the unit and through the vents in the side of the case

is not restricted. 3Com recommends you provide a minimum of

25 mm (1 in.) clearance.

Using the Rubber

Feet

Use the four self-adhesive rubber feet to prevent your Router from

moving around on your desk or when stacking with flat top units. Only

stick the feet to the marked areas at each corner of the underside of your

Router.

Powering Up the

Router

To power up the Router:

1Plug the power adapter into the power adapter socket located on the

back panel of the Router.

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

3Press the power button located on the back of the Router.

Connecting the

Router

The first step for installing your Router is to physically connect it to the

telephone socket and then connect it to a computer in order to be able to

access the Internet. See Figure 5:

Connecting the Router 19

Figure 5 Connecting the Router

1Run the provided telephone cable from the wall jack providing ADSL

service to the ADSL port on your ADSL Router. When inserting an ADSL

RJ-11 plug, be sure the tab on the plug clicks into position to ensure that

it is properly seated. If you are using splitterless ADSL service, add

low-pass filters between the ADSL wall jack and your telephones. (These

filters pass voice signals through but filter data signals out.)

2Then:

■If you are using a full-rate (G.dmt) connection, your service provider

will attach the outside ADSL line to a data/voice splitter. In this case

you can connect your phones and computer directly to the splitter as

shown below (Figure 6):

■If you are using a splitterless (G.lite) connection, then your service

provider will attach the outside ADSL line directly to your phone

system. In this case you can connect your phones and computer

directly to the incoming ADSL line, but you will have to add low-pass

filters to your phones as shown below (Figure 7)

Internet

Power

Supply Unit

Tele

hone

Socket

litter

fil

r Bl

ock

r P

Wir

ess

Use

3Com OfficeConnect

DSL Wireless 11

Firewall Route

20 CHAPTER 2: INSTALLING THE ROUTER

Figure 6 Installing with a splitter

Connecting the Router 21

Figure 7 Installing without a splitter

You have now completed the hardware installation of your Router. Next

you need to set up your computers so that they can make use of the

Router to communicate with the Internet.

3Com recommends that you perform the initial Router configuration

from a computer that is directly connected to one of the LAN ports.

If you configure the Router from a wireless computer, note that you may

lose contact with the Router if you change the wireless configuration.

To communicate wirelessly with your Router, your wireless NIC should be

set as follows:

■Encryption — none

■SSID — 3Com

■Channel — 11

22 CHAPTER 2: INSTALLING THE ROUTER

3SETTING UP YOUR COMPUTERS

The Router has the ability to dynamically allocate network addresses to

the computers on your network, using DHCP. However, your computers

need to be configured correctly for this to take place. To change the

configuration of your computers to allow this, follow the instructions in

this chapter.

Obtaining an IP

Address

Automatically

Windows 2000 If you are using a Windows 2000-based computer, use the following

procedure to change your TCP/IP settings:

1From the Windows Start Menu, select Settings > Control Panel.

2Double click on Network and Dial-Up Connections.

3Double click on Local Area Connection.

4Click on Properties.

5A screen similar to Figure 8 should be displayed. Select Internet Protocol

TCP/IP and click on Properties.

24 CHAPTER 3: SETTING UP YOUR COMPUTERS

Figure 8 Local Area Properties Screen

6Ensure that the options Obtain an IP Address automatically, and Obtain

DNS server address automatically are both selected as shown in Figure 9.

Click OK.

Figure 9 Internet Protocol (TCP/IP) Properties Screen

7Restart your computer.

Obtaining an IP Address Automatically 25

Windows XP

1From the Windows Start menu, select Control Panel.

2Click on Network and Internet Connections.

3Click on the Network Connections icon.

4Double click on LAN or High Speed Connection icon. A screen titled Local

Area Connection Status will appear.

5Select Internet Protocol TCP/IP and click on Properties.

6Ensure that the options Obtain an IP Address automatically, and Obtain

DNS servers automatically are both selected. Click OK.

7Restart your computer.

Windows 98/ME

1From the Windows Start Menu, select Settings > Control Panel.

2Double click on Network. Select the TCP/IP item for your network card

and click on Properties.

3In the TCP/IP dialog, select the IP Address tab, and ensure that Obtain IP

address automatically is selected. Click OK.

Macintosh If you are using a Macintosh computer, use the following procedure to

change your TCP/IP settings:

1From the desktop, select Apple Menu, Control Panels, and TCP/IP.

2In the TCP/IP control panel, set Connect Via: to Ethernet.

3In the TCP/IP control panel, set Configure: to Using DHCP Server.

4Close the TCP/IP dialog box, and save your changes.

5Restart your computer.

26 CHAPTER 3: SETTING UP YOUR COMPUTERS

Disabling PPPoE

and PPTP Client

Software

If you have PPPoE client software installed on your computer, you will

need to disable it. To do this:

1From the Windows Start menu, select Settings > Control Panel.

2Double click on Internet Options.

3Select the Connections Tab. A screen similar to Figure 10 should be

displayed.

4Select the Never Dial a Connection option.

Figure 10 Internet Properties Screen

You may want to remove the PPPoE client software from your computer

to free resources, as it is not required for use with the Router.

Disabling Web

Proxy

Ensure that you do not have a web proxy enabled on your computer.

Go to the Control Panel and click on Internet Options. Select the

Connections tab and click LAN Settings at the bottom. Make sure that

the Use Proxy Server option is unchecked.

4RUNNING THE SETUP WIZARD

Accessing the Setup

Wizard

The Router setup program is Web-based, which means that it is accessed

through your Web browser (Netscape Navigator 4.7 or higher, Internet

Explorer 5.0 or higher, or Mozilla 1.2.1 or higher).

To use the Setup Wizard:

1Ensure that you have at least one computer connected to the Router.

Refer to Chapter 2 for details on how to do this.

2Launch your Web browser on the computer.

3Enter the following URL in the location or address field of your browser:

http://192.168.1.1 (Figure 11). The Login screen displays.

Figure 11 Web Browser Location Field (Factory Default)

28 CHAPTER 4: RUNNING THE SETUP WIZARD

4To log in as an administrator, enter the password (the default password is

admin) in the System Password field and click Log in (Figure 12).

Figure 12 Router Login Screen

5When you have logged in,

■if you are logging in for the first time, the Country Selection screen

will appear (Figure 13). Please select the country form the drop-down

menu, and click Apply.

Figure 13 Country Selection Screen

The Wizard will then launch automatically (refer to Figure 16). You will be

guided step by step through a basic setup procedure.

■if the Router has been configured previously before, the Welcome

screen will appear (Figure 14). There are three tabs: Notice board,

Password, and Wizard.

Accessing the Setup Wizard 29

Figure 14 Welcome Screen

■Go to the Notice Board tab to see the current software information. To

view the Web help, click the Help button.

■Go to the Password tab to change the password (Figure 15).

■Go to the Wizard tab to do a quick setup of the Router (Figure 16).

The password screen allows you to change the current password and set

the login time limit to the Router’s management interface.

Figure 15 Password Screen

1To change the current password, enter the password in the Current

Password field.

2Enter the new password in the New Password field, and enter it again in

the Confirm New Password field.

30 CHAPTER 4: RUNNING THE SETUP WIZARD

3Enter the time period in Login Timeout to set a maximum period of time

for which the login session is maintained during inactivity (Default: 10

minutes).

Setup Wizard -

Change Password

To ensure the security of your Router, it is recommended that you choose

a new password - this should be a mix of letters and numbers, and not

easily guessed by others. To leave the current password unchanged, leave

the fields blank and click Next.

Figure 16 Change Password Screen

Setup Wizard - Time

and Time Zone

The Time and Time Zone screen allows you to set up the time for the

Router.

Figure 17 Time and Time Zone Screen

1If you want to automatically synchronize the Router with a public time

server, check the Enable box in the Using Time Server field.

2Select the time zone in the Set Time Zone drop-down menu.

3Select the desired servers from the Time Server drop-down menu.

Accessing the Setup Wizard 31

4Check the Enable box in the Daylight Savings field, if daylight savings

applies to your area.

5Click Next.

Setup Wizard -

Connection Type

The Connection Type screen allows you to set up the Router for the type

of Internet connection you have. Before setting up your connection type,

have your account information from your ISP ready.

Figure 18 Connection Type Screen

Select a DSL mode from the following:

■PPPoE — PPP over Ethernet, providing routing for multiple PCs, see

page 32

■PPPoA — PPP over ATM, providing routing for multiple PCs, see

page 33

■Bridge Mode (for a single PC) — RFC1483 Bridged Mode, for single

PCs only, see page 34

■Routing Mode over ATM — RFC1483 Routed Mode, for multiple PCs,

see page 34

■Dynamic/Fixed IP in 1483 Bridge Mode (for multiple PCs), see page 35

and click Next.

For further information on selecting a mode see “Internet Settings” on

page 54.

32 CHAPTER 4: RUNNING THE SETUP WIZARD

PPPoE Mode

To set up the Router for use with a PPP over Ethernet (PPPoE) connection,

use the following procedure:

Figure 19 PPPoE Screen

1Enter your user name in the Username field.

2Enter your password in the Password field.

3Re-type your password in the Retype Password field.

4Enter your VPI and VCI information in the VPI/VCI fields.

5Select the encapsulation type (LLC or VC MUX) in the Encapsulation

drop-down menu. This information should be provided to you by your ISP.

6Check all of your settings, and then click Next.

The LAN Settings screen will then be displayed (refer to Figure 24).

Accessing the Setup Wizard 33

PPPoA Mode

To set up the Router for use with a PPP over ATM (PPPoA) connection, use

the following procedure:

Figure 20 PPPoA Screen

1Enter your user name in the Username field.

2Enter your password in the Password field.

3Re-type your password in the Retype Password field.

4Enter your VPI and VCI information in the VPI/VCI fields.

5Select the encapsulation type (LLC or VC MUX) in the Encapsulation

drop-down menu. This information should be provided to you by your ISP.

6Check all of your settings, and then click Next.

The LAN Settings screen will then be displayed (refer to Figure 24).

34 CHAPTER 4: RUNNING THE SETUP WIZARD

Bridge Mode (for a single PC)

To set up the Router for use with an RFC1483 bridged connection, use

the following procedure:

Figure 21 Bridged Mode Screen

1Enter your VPI and VCI information in the VPI/VCI fields.

2Select the encapsulation type (LLC or VC MUX) in the Encapsulation

drop-down menu. This information should be provided to you by your ISP.

3Check all of your settings, and then click Next.

The LAN Settings screen will then be displayed (refer to Figure 24).

Routing Mode over ATM

To set up the Router for use with an RFC1483 routed connection, use the

following procedure:

Figure 22 Routing Mode Screen

Arcadyan Technology AR4505NW DIGITAL TRANSMISSION SYSTEM User Manual 3com

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