This chapter contains tasks for setting up PPP authentication. Subjects that are covered include the following:
The procedures show how to implement authentication over a dial-up link because dial-up links are more likely to be configured for authentication than leased-line links. You can configure authentication over leased lines if authentication is required by your corporate security policy. For leased-line authentication, use the tasks in this chapter as guidelines.
If you want to use PPP authentication but are not sure which protocol to use, review the section Why Use PPP Authentication?. More detailed information about PPP authentication is in the pppd(1M) man page and in Authenticating Callers on a Link.