User guide

About This Guide
The Command Line Interface guide contains information on the syntax and use of the Command Line Interface
for the family of DSL routers. It provides the steps and information needed to configure the router software and
troubleshoot problems using the Command Line Interface. Configuration of network connections, bridging,
routing, and security features are essentially the same for all DSL routers, unless otherwise noted. The guide also
provides detailed information about the systemÕs bridging, routing, addressing, and security operations.
This guide is intended for small and home office users, remote office users, and other networking professionals
who are installing and maintaining bridged and routed networks.
How This Guide is Organized
This guide is intended to help you configure and manage the router using the Command Line Interface. The guide
assumes that you have read the information about the router and installed the hardware using the Internet Quick
Start Guide . The guide is divided into eight parts:
Introduction. Describes the features of the Command Line Interface.
Advanced Topics. Contains additional information on topics such as interoperability, routing and bridging
operations, PAP/CHAP security negotiation, bandwidth management, protocol conformance, and the file system.
Planning for Router Configuration. Provides information unique to configuration using the Command Line
Interface including worksheets for collecting required information.
Configuring Router Software. Describes how to configure the router using the Command Line Interface.
Configuring Special Features. Describes how to configure features such as Bridging Filtering, RIP, DHCP,
NAT, Management Security, Software Options Keys, Encryption, IP Filtering, and L2TP Tunneling.
Command Line Interface Reference. Describes the syntax of each command and the results when the command
is entered.
Managing the Router. Describes SNMP management capabilities, TFTP client and server, TELNET support
and how to upgrade the system software, boot code, backup and restore configuration files, FLASH memory
recovery procedures, and batch file command execution.
Troubleshooting. Describes diagnostic tools used for identifying and correcting hardware and software problems.