Avaya P460 - Manual (Page 112)

Chapter 2 Avaya P460 CLI Commands
102 Avaya P460 Reference Guide
Example:
set ppp chap-secret
User level: admin.
Use the set ppp chap-secret command to configure the “shared secret” used
in PPP sessions with CHAP authentication. The chap-secret is not transferable via
the configuration upload/download mechanism.
The syntax for this command is:
set ppp chap-secret <chap-secret>
Example:
P460-1# set ppp baud-rate 38400
ppp baud rate was set to 38400
chap-secret The shared secret, 4 to 32 characters.
P460-1(super)# set ppp chap secret hush
PPP shared secret for CHAP authentication is set