Arcadyan Technology WG4005DARC User Manual

OfficeConnect®

11g Cable/DSL Router
User Guide

3CRWE554G72T
3CRWE554G72TU

http://www.3com.com/

Part No. DUA0554-TAAA01

Rev. 01

Published June 2004

3Com Corporation
5500 Bayfront Plaza
Santa Clara, California
95052-8145

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

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

ABOUT THIS GUIDE

Naming Convention 7
Conventions 8

Feedback about this User Guide 8
Related Documentation 9
Product Registration 9

1 INTRODUCING THE ROUTER

OfficeConnect 11g Cable/DSL Router 11
Router Advantages 13
Package Contents 13
Minimum System and Component Requirements 14
Front Panel 14
Rear Panel 16

2 HARDWARE INSTALLATION

Introduction 19

Safety Information 19

Positioning the Router 19

Using the Rubber Feet 20
Wall Mounting 20
Before you Install your Router 21
Powering Up the Router 22
Connecting the Router 22

3 SETTING UP YOUR COMPUTERS

Obtaining an IP Address Automatically 25

Windows 2000 25

Windows XP 27

Windows 95/98/ME 27

Macintosh 27
Disabling PPPoE and PPTP Client Software 28
Disabling Web Proxy 28

4 RUNNING THE SETUP WIZARD

Accessing the Wizard 29

Password 32

Time Zone 32

WAN Settings 33

LAN Settings 38

DHCP 38

Wireless Settings 39

Summary 40

5 ROUTER CONFIGURATION

Navigating Through the Router Configuration Pages 41

Main Menu 41

Option Tabs 42
Welcome Screen 42

Notice Board 42

Password 43

Wizard 44
LAN Settings 44

Unit Configuration 44

DHCP Clients List 45
Wireless Settings 47

Configuration 47

Encryption 49

Configuring WPA Encryption 49

Configuring WEP Encryption 50

Connection Control 53

Client List 55

Profile 55
Internet Settings 57

Connection to ISP 58
Firewall 63

Virtual Servers 63

Special Applications 65
PC Privileges 67
URL Filter 69
Security 73

System Tools 75

Restart 75
Time Zone 76
Configuration 77
Upgrade 78

Status and Logs 78

Status 78
Usage 79
Logs 80

Support/Feedback 80

Support 81
Feedback 81

6 TROUBLESHOOTING

Basic Connection Checks 83
Browsing to the Router Configuration Screens 83
Connecting to the Internet 84
Forgotten Password and Reset to Factory Defaults 85
Wireless Networking 85

Replacement Power Adapters 87
Alert LED 88
Recovering from Corrupted Software 88
Frequently Asked Questions 89

A USING DISCOVERY

Running the Discovery Application 91

Windows Installation (95/98/2000/Me/NT) 91

B IP ADDRESSING

The Internet Protocol Suite 93
Managing the Router over the Network 93

IP Addresses and Subnet Masks 93

How does a Device Obtain an IP Address and Subnet Mask? 95

DHCP Addressing 95
Static Addressing 95
Auto-IP Addressing 95

C TECHNICAL SPECIFICATIONS

Standards 98

D SAFETY INFORMATION

E END USER SOFTWARE LICENSE AGREEMENT

F ISP INFORMATION

GLOSSARY

INDEX

REGULATORY NOTICES FOR THE 11G CABLE/DSL ROUTER

ABOUT THIS GUIDE

This guide describes how to install and configure the OfficeConnect 11g
Cable/DSL Router (3CRWE554G72T and 3CRWE554G72TU).

This guide is intended for use by those responsible for installing and
setting up network equipment; consequently, it assumes a basic working
knowledge of LANs (Local Area Networks) and Internet Router systems.

If a release note is shipped with the OfficeConnect 11g Cable/DSL Router
and contains information that differs from the information in this guide,
follow the information in the release note.

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

http://www.3com.com

Naming Convention Throughout this guide, the OfficeConnect 11g Cable/DSL Router is

referred to as the “Router”.

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

8 ABOUT THIS GUIDE

Conventions Ta bl e 1 and Tab l e 2 list conventions that are used throughout this guide.

Tab le 1 Notice Icons

Icon Notice Type Description

Information note Information that describes important features or

instructions.

Caution Information that alerts you to potential loss of data or

potential damage to an application, system, or device.

Warning Information that alerts you to potential personal

injury.

Tab le 2 Text Conventions

Convention Description

The words “enter”
and “type”

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

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

names 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 the

text.

■ Identify menu names, menu commands, and software

button names. Examples:

From the Help menu, select Contents.

Click OK.

Feedback about this

User Guide

Your suggestions are very important to us. They will help make our
documentation more useful to you. Please e-mail comments about this
document to 3Com at:

[e-mail]

Please include the following information when commenting:

■ Document title

■ Document part number (on the title page)

■ Page number (if appropriate)

Conventions 9

Example:

■ OfficeConnect 11g Cable/DSL Router User Guide

■ Part Number DUA0554-TAAA01

■ Page 24

Do not use this e-mail address for technical support questions. For
information about contacting Technical Support, please refer to the
Support and Safety Information sheet.

Related

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.

Product Registration You can now register your Router on the 3Com web site and receive

up-to-date information on your product:

http://www.3com.com/register/

10 ABOUT THIS GUIDE

1

INTRODUCING 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. The OfficeConnect
has changed all this, bringing networks to the small office.

The products that compose the OfficeConnect range give you, the small
office user, the same power, flexibility, and protection that has been
available only to large corporations. Now, you can network the
computers in your office, connect them all to a single Internet outlet, and
harness the combined power of all of your computers.

®

product range from 3Com

OfficeConnect 11g
Cable/DSL Router

The OfficeConnect 11g Cable/DSL 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

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.

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

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 Cable/DSL Router

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

■ Filtered access of inappropriate Web sites using the built-in URL filter

Router Advantages 13

Package Contents The Router kit includes the following items:

■ One OfficeConnect 11g Cable/DSL Router

■ One power adapter for use with the Router

■ Four rubber feet

■ One Ethernet cable

■ One CD-ROM containing the Router Discovery program and 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 95/98/NT/Me/2000/XP,
Unix, Mac OS 8.5 or higher).

■ An Ethernet 10Mbps 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.

■ A cable modem or DSL modem with an Ethernet port (RJ-45

connector).

■ An active Internet access account.

■ 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.

Front Panel 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

21 43

WLAN

Alert Enabled

LAN Status Cable/DSL

5

3CRWE554G72

OfficeConnect Wireless 11g Cable/DSL Gateway

1 Alert LED

Orange

Indicates a number of different conditions, as described below.

Off - The Router is operating normally.

Flashing quickly - Indicates one of the following conditions:

■ The Router has just been started up and is running a self-test routine,

or

Front Panel 15

■ The administrator has invoked the Reset to Factory Defaults

command, or

■ The system software is in the process of being upgraded

In each of these cases, wait until the Router has completed the current
operation and the alert LED is Off.

Flashing slowly - The Router has completed the Reset to Factory Defaults
process, and is waiting for you to reset the unit. To do this, remove
power, wait 10 seconds and then re-apply power. The Router will then
enter the start-up sequence and resume normal operation.

If you have used a cable to reset the unit to Factory Defaults, follow steps
5 to 7 in “

page 85

Forgotten Password and Reset to Factory Defaults” on

.

On for 2 seconds, and then off - The Router has detected and prevented

a hacker from attacking your network from the Internet.

Continuously on - A fault has been detected with your Router during the
start-up process. Refer to Chapter 6

“Troubleshooting”.

2Power LED

Green

Indicates that the Router is powered on.

3 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, the
Wireless LAN has been disabled in the Router, or there is a problem. Refer
to Chapter 6

“Troubleshooting”.

4 Four LAN Status LEDs

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

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, 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.

16 CHAPTER 1: INTRODUCING THE ROUTER

5 Cable/DSL Status LED

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

If the LED is on, the link between the Router and the cable or DSL modem
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, the modem is switched
off or there is a problem (refer to Chapter 6

“Troubleshooting”).

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

Ethernet Cable/DSL port, a power adapter OK LED, and a power adapter
socket.

Figure 4 Router - Rear Panel

6 6

7 9 108

OK

Ethernet

Cable/

DSL

4

LAN

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.

7 Power Adapter Socket

Only use the power adapter supplied with this Router. Do not use any
other adapter.

8 Power Adapter OK LED

Green

Indicates that the power adapter is supplying power to the Router. If the
LED is off, there may be a problem with the power adapter or adapter
cable.

9 Ethernet Cable/DSL port

Use the supplied patch cable to connect the Router to the Ethernet port
on your cable or DSL modem. The port will automatically adjust to the
correct speed and duplex, and will set itself to MDI or MDIX depending
on the device to which they are connected and the type of cable used.

Rear Panel 17

10 Four 10/100 LAN ports

Using suitable RJ-45 cable, 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). The LAN ports will automatically set
themselves to MDI or MDIX depending on the device to which they are
connected and the type of cable used.

18 CHAPTER 1: INTRODUCING THE ROUTER