3Com OFFICE CONNECT CABLE/DSL SECURE GATEWAY 3CR856-95 User Manual

Contents

4LAN Settings 35LAN IP Settings 35DHCP Clients List 37Internet Settings 38Connection to ISP 39Setting up NAT 43Configuring the Firewall 45The Virtual Servers Menu 45PC Privileges 47Special Applications 49Advanced 52Configuring VPNs 53Setting the VPN Mode 53Viewing VPN Connections 55Editing IPSec Routes 60Accessing the System Tools 61Restart 61Time Zone 62Loading and Saving the Gateway Configuration 62Upgrading the Firmware of your Gateway 63Viewing Status and Logs 64Obtaining Support and Feedback for your Gateway 65Troubleshooting 67Basic Connection Checks 67Browsing to the Gateway Configuration Screens 67Connecting to the Internet 68Forgotten Password 68Alert LED 69Recovering from Corrupted Software 69Frequently Asked Questions 70Using Discovery 71Running the Discovery Application 71Windows Installation (95/98/2000/Me/NT) 71IP Addressing 73The Internet Protocol Suite 73How does a Device Obtain an IP Address and Subnet Mask? 74DHCP Addressing 74Static Addressing 74Auto-IP Addressing 75Private IP Addresses 75Technical Specifications 77Interfaces 77Operating Temperature 77Power 77Humidity 77Dimensions 77Weight 77Standards 77System Requirements 78Operating Systems 78Ethernet Performance 78dua08 569-5aaa02.bo o k Pag e 4 Thursday , No vem ber 7 , 2002 3:09 PM