Kentrox AI232 - Manual (Page 37)

AI232 Version 9.6x User’s Guide
AI232 Local Menu System: Identifying AI232 Menu System Security Options
3-3
PPP Authentication Protocols (PAP and CHAP)
All asynchronous and synchronous PPP links are configurable to use either PAP or
CHAP PPP authentication protocols. PAP establishes peer identity using a 2-way
handshake that is done only upon initial link establishment. CHAP performs a 3-way
handshake upon initial link establishment, then proceeds to verify the link with 3-way
handshakes at random intervals. CHAP also encrypts the user’s password over the
PPP link to provide added security.