How to Add CHAP Support to the PPP Configuration Files (Dial-in Server)

1. Log in to the dial-in server as superuser.

2. Modify the /etc/ppp/options file.

   Add the options that are shown in bold for CHAP support.

   # cat /etc/ppp/options lock nodefaultroute name CallServe auth

   name CallServe

   Defines CallServe as the CHAP name of the user on the local machine, in this instance the dial-in server

   auth

   Makes the local machine authenticate callers before establishing the link

3. Create the remaining PPP configuration files to support the trusted callers.

   See How to Configure Users of the Dial-in Server and How to Define Communications Over the Serial Line (Dial-in Server).

See Also

To configure CHAP authentication credentials for trusted callers, refer to How to Create a CHAP Credentials Database (Dial-in Server).