3Com 3CR856-95 C

3

CONTENTS

Contents 3

About This Guide 7

Naming Convention 7

Conventions 7

Introducing the OfficeConnect Cable/DSL Secure Gateway 9

OfficeConnect Cable/DSL Secure Gateway 9

Cable/DSL Secure Gateway Advantages 10

Package Contents 11

Minimum System and Component Requirements 11

Front Panel 12

Rear Panel 13

Installing the Gateway 15

Introduction 15

Positioning the Gateway 15

Safety Information 15

Using the Rubber Feet 15

Before you Install your Gateway 15

PPPoE 16

PPTP 16

DHCP 16

Static 16

Powering Up the Gateway 17

Connecting the Cable/DSL Secure Gateway 17

Setting Up Your Computers 19

Obtaining an IP Address Automatically 19

Windows 2000, XP 19

Windows 95, 98, ME 20

Macintosh OS 8.5, 9.x 20

Disabling PPPoE and PPTP Client Software 20

Running the Setup Wizard 23

Accessing the Wizard 23

Setting the Password 24

Setting the Time Zone 25

Auto-Configuration Settings 26

Internet Settings 26

Choosing your LAN Settings 30

Activating DHCP 30

Viewing the Summary 31

Gateway Configuration 33

Navigating Through the Gateway Configuration Pages 33

Main Menu 33

Option Tabs 33

Welcome Screen 34

Viewing the Notice Board 34

Changing the Administration Password 34

Setup Wizard 35

dua08569-5aaa02.boo k Pag e 3 Thursday, Novem b er 7, 2002 3:09 PM

Contents

Main 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 C Page Page Page ABOUT THIS GUIDE Naming Convention Conventions Icon Notice Type Description Convention Description Feedback about this User Guide Convention Description Related Documentation Product Registration INTRODUCING THE OFFICECONNECT CABLE/DSL SECURE GATEWAY OfficeConnect Cable/DSL Secure Gateway Cable/DSL Secure Gateway Advantages Package Contents Minimum System and Component Requirements Front Panel 1 Alert LED (Orange) Off Flashing quickly Flashing slowly (Two seconds on, two seconds off) On for 2 seconds, and then off Rear Panel 5 Power Adapter socket 6 Ethernet Cable/DSL port 7 Four 10/100 LAN ports Page INSTALLING THE GATEWAY Introduction Positioning the Gateway Safety Information Using the Rubber Feet PPPoE PPTP DHCP Static Powering Up the Gateway Connecting the Cable/DSL Secure Gateway Page SETTING UP YOUR COMPUTERS Obtaining an IP Address Automatically Windows 2000, XP Windows 95, 98, ME Macintosh OS 8.5, 9.x Disabling PPPoE and PPTP Client Software Disabling Web Proxy Page RUNNING THE SETUP WIZARD Accessing the Wizard Setting the Password Setting the Time Zone Auto-Configuration Settings Internet Settings Static IP Mode Dynamic IP Address Mode PPPoE Mode PPTP Mode Choosing your LAN Settings Activating DHCP Viewing the Summary Page GATEWAY CONFIGURATION Navigating Through the Gateway Configuration Pages Main Menu Option Tabs Getting Help Welcome Screen Viewing the Notice Board Changing the Administration Password Setup Wizard LAN Settings LAN IP Settings Changing the LAN Settings Changing the DHCP Server Settings DHCP Clients List Internet Settings Connection to ISP Configuring a Static IP Address Configuring a Dynamic IP Address Configuring a PPPoE connection Configuring a PPTP connection Setting up NAT Page Setting up One-to-One NAT Configuring the Firewall The Virtual Servers Menu Creating a Virtual DMZ Creating a Virtual Server PC Privileges To use access control for all computers: To assign different access rights for different computers: Example: Special Applications Adding and Editing Special Applications Creating Custom Special Applications Page Advanced Configuring VPNs Setting the VPN Mode IPSec Configuration L2TP Configuration PPTP Configuration Viewing VPN Connections Adding and Editing VPN Connections I IPSec Connections using Gateway to Gateway Example: L2TP over IPSec Connections PPTP Connections Editing IPSec Routes Accessing the System Tools Restart Time Zone Loading and Saving the Gateway Configuration Upgrading the Firmware of your Gateway Viewing Status and Logs Page Page T Basic Connection Checks Browsing to the Gateway Configuration Screens Connecting to the Internet Forgotten Password Alert LED Recovering from Corrupted Software Frequently Asked Questions USING DISCOVERY Running the Discovery Application Windows Installation (95/98/2000/Me/NT) Page IP A The Internet Protocol Suite IP Addresses and Subnet Masks Type One Device IP Address Subnet Mask How does a Device Obtain an IP Address and Subnet Mask? DHCP Addressing Static Addressing Device IP Address Subnet Mask Auto-IP Addressing Private IP Addresses Page T Interfaces Operating Temperature Power Humidity System Requirements Operating Systems Ethernet Performance Cable Specifications SAFETY INFORMATION Important Safety Information Wichtige Sicherheitshinweise Consignes importantes de scurit Page Page END USER SOFTWARE LICENCE AGREEMENT 3Com Corporation END USER SOFTWARE LICENSE AGREEMENT Page ISP I Information Regarding Popular ISPs Internet Connection Typ es Characteristics Popular ISPs Internet Connection Typ es Page G 10BASE-T 100BASE-TX 3DES Auto-negotiation Page IETF IP IP Address IPSec ISP Page Page Page I Numbers A B C E F G H I L M N O P R S T U V W Page REGULATORY NOTICES FCC Statement VCCI Statement Information to the User CE Statement (Europe)