Table 8-1 describes the username command parameters.
Add a username entry for each remote system that the local router communicates
with and that requires authentication. Note that the remote device must have a
corresponding username entry for the local router with a matching password.
Step 3 Con?¬?gure PPP authentication with the ppp authentication {chap | chap
pap | pap chap | pap} interface con?¬?guration command.
If you con?¬?gure ppp authentication chap on an interface, all incoming PPP
sessions on that interface are authenticated using CHAP. Likewise, if you
con?¬?gure ppp authentication pap, all incoming PPP sessions on that interface
are authenticated using PAP.
If you con?¬?gure ppp authentication chap pap, the router attempts to authenticate
all incoming PPP sessions using CHAP. If the remote device does not support
CHAP, the router tries to authenticate the PPP session using PAP. If the remote
device does not support either CHAP or PAP, the authentication fails, and the PPP
session is dropped.
If you con?¬?gure ppp authentication pap chap, the router attempts to authenticate
all incoming PPP sessions using PAP. If the remote device does not support PAP,
the router tries to authenticate the PPP session using CHAP.
Pages:
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478