System Administration Guide: Network Services

Why Use PPP Authentication?

Providing authentication on a PPP link is optional. Moreover, though authentication does verify that a peer is to be trusted, PPP authentication does not provide confidentiality of data. For confidentiality, use encryption software, such as IPsec, PGP, SSL, Kerberos, and the Solaris Secure Shell.

Note –

Solaris PPP 4.0 does not implement the PPP Encryption Control Protocol (ECP), which is described in RFC 1968.

Consider implementing PPP authentication in the following situations: