OfficeConnect®

Cable/DSL Gateway

Wireless Cable/DSL Gateway

User Guide

3C857

3CRWE52196

(3CRWE52196 Only)

http://www.3com.com/

Part No. DUA0085-5AAA04

Published October 2002

3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145

Copyright © 2002, 3Com Technologies. 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, or adaptation) without written permission from 3Com Technologies.

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If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

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

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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 GATEWAY

OfficeConnect Cable/DSL Gateway and Wireless Cable/DSL Gateway 11

	Gateway 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 Gateway				19
	Using the Rubber Feet				20
	Wall Mounting		20
	Before you Install your Gateway 21
	Powering Up the Gateway				22
	Connecting the Gateway				22
	Wireless Only		23

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 GATEWAY CONFIGURATION

Navigating Through the Gateway Configuration Pages 41

Main Menu			41
Option Tabs			42
Welcome Screen			42
Notice Board			43
Password		43
Wizard	44
LAN Settings		44
Unit Configuration				44
DHCP Clients List				45
Wireless Settings			46
Configuration			46
Encryption		48
Connection Control				50
Client List		53
Profile	53
Internet Settings			55
Connection to ISP				56
Firewall	61
Virtual Servers			61
Special Applications				63

	PC Privileges		65
	Security	67
	System Tools		69
	Restart	69
	Time Zone		69
	Configuration 70
	Upgrade	71
	Status and Logs		72
	Status	73
	Logs 73
	Support	73
6
	TROUBLESHOOTING
	Basic Connection Checks				75
	Browsing to the Gateway Configuration Screens						75
	Connecting to the Internet				76
	Forgotten Password and Reset to Factory Defaults						76
	Wireless Networking			77
	Alert LED	79
	Recovering from Corrupted Software					79
	Frequently Asked Questions				80
A
	USING DISCOVERY
	Running the Discovery Application					83
	Windows Installation (95/98/2000/Me/NT) 83
B
	IP ADDRESSING
	The Internet Protocol Suite				85
	Managing the Gateway over the Network 85
	IP Addresses and Subnet Masks					85
	How does a Device Obtain an IP Address and Subnet Mask? 87
	DHCP Addressing			87
	Static Addressing			87
	Auto-IP Addressing			87

CTECHNICAL SPECIFICATIONS

DSAFETY INFORMATION

EEND USER SOFTWARE LICENCE AGREEMENT

FISP INFORMATION

GLOSSARY

INDEX

REGULATORY NOTICES FOR THE CABLE/DSL GATEWAY

REGULATORY NOTICES FOR THE WIRELESS CABLE/DSL GATEWAY

ABOUTTHISGUIDE

This guide describes how to install and configure the OfficeConnect

Cable/DSL Gateway (3C857) and the OfficeConnect Wireless Cable/DSL

Gateway (3CRWE52196). All procedures in this guide apply to both

Gateways except when stated.

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 gateway systems.

If a release note is shipped with the OfficeConnect Cable/DSL Gateway or OfficeConnect Wireless Cable/DSL Gateway 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 Cable/DSL Gateway and OfficeConnect Wireless Cable/DSL Gateway are referred to as the “Gateway”.

Category 3 and Category 5 Twisted Pair Cables are referred to as Twisted

Pair Cables throughout this guide.

8 ABOUTTHISGUIDE

Conventions	Table 1 andTable 2 list conventions that are used throughout this guide.
	Table 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.
	Table 2	Text Conventions
	Convention		Description
	The words “enter”		When you see the word “enter” in this guide, you must type
	and “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, selectContents.
			Click OK.

Feedback about this Your suggestions are very important to us. They will help make ourUser Guide documentation more useful to you. Pleasee-mailcomments 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 Cable/DSL Gateway and Wireless Cable/DSL Gateway User Guide

■Part Number DUA0085-5AAA04

■Page 24

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

Related In addition to this guide, each Gateway document set includes oneDocumentation Installation Guide. This guide contains the instructions you need to install

and configure your Gateway.

Product Registration You can now register your Gateway on the 3Com web site and receiveup-to-dateinformation on your product:

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

10 ABOUTTHISGUIDE