Cisco IOS Wide-Area Networking Configuration Guide - Free Books

Configuring Authentication for the L2TP Control ChannelSUMMARY STEPSDETAILED STEPSThe L2TP control channel method of authentication is the older, CHAP-like authentication systeminherited from L2TPv2.The following L2TP control channel authentication parameters can be configured in L2TP classconfiguration mode:• Authentication for the L2TP control channel• Password used for L2TP control channel authentication• Local hostname used for authenticating the control channelThis task configures a set of authentication control channel parameters in an L2TP class. All of theauthentication control channel parameter configurations are optional and may be configured in anyorder. If these parameters are not configured, the default values are applied.1. enable2. configure terminal3. l2tp-class [l2tp-class-name]4. authentication5. password [0 | 7] password6. hostname nameStep 1Step 2Command or ActionenableExample:Router> enableconfigure terminalPurposeEnables privileged EXEC mode.• Enter your password if prompted.Enters global configuration mode.Step 3Step 4Example:Router# configure terminall2tp-class [l2tp-class-name]Example:Router(config)# l2tp-class class1authenticationExample:Router(config-l2tp-class)# authenticationSpecifies the L2TP class name and enters L2TP classconfiguration mode.• The l2tp-class-name argument is optional. However, ifyou want to configure multiple L2TP classes you mustspecify a unique l2tp-class-name for each one.(Optional) Enables authentication for the control channelbetween PE routers.52