System authentication

PPP connections with a IBM® i platform support several options for authenticating both remote clients dialing in to the system and connections to an ISP or another system that the system is dialing to.

The system supports several methods for maintaining authentication information. These methods include simple validation lists on the system that contain lists of authorized users and their passwords to support for Remote Authentication Dial In User Service (RADIUS) servers. RADIUS servers maintain detailed information for network users. The system also supports several options for encrypting user ID and password information, ranging from a simple password exchange to support with Challenge Handshake Authentication Protocol (CHAP-MD5). You can specify your preferences for system authentication, including a user ID and password to validate the system when dialing out, on the Authentication tab of the connection profile in IBM Navigator for i.