The tasks in this section explain how to implement authentication on a PPP link by using the Password Authentication Protocol (PAP). The tasks use the example that is shown in Examples of PPP Authentication Configurations to illustrate a working PAP scenario for a dial-up link. Use the instructions as the basis for implementing PAP authentication at your site.
Before you perform the following procedures, you must complete the following steps:
Set up and tested the dial-up link between the dial-in server and dial-out systems that belong to trusted callers
Ideally, for dial-in server authentication, obtained superuser permission for the system where the network password database is administered, for example, in LDAP, NIS, or local files
Obtained superuser authority for the local system, either dial-in server or dial-out system
To set up PAP authentication, you must configure authentication on the dial-in server and on the dial-out system.