4.3 PPP Authentication
4.3.4 Writing the IOS command to configure CHAP authentication
The following methods can be used to simplify CHAP configuration tasks on the router:
  • You can use the same host name on multiple routers-When you want remote users to think they are connecting to the same router when authenticating, configure the same host name on each router:

Router(config-if)# ppp chap hostname <hostname>

  • You can use a password to authenticate an unknown host.  This is to limit the number of username/password entries in the router.  To use this, configure a password that will be sent to hosts that want to authenticate the router:

Router(config-if)# ppp chap password <secret>

This password is not used when the router authenticates a remote device.

Lab Activity
  This lab focuses on PPP (Point-to-Point Protocol).