Command Reference Guide PPP Interface Configuration Command Set
61200510L1-35E Copyright © 2005 ADTRAN 1097
Configuring CHAP Example 3: Both routers require each other to authenticate themselves using
the same shared password.
On the local router (hostn ame Local):
Local(config-ppp 1)#ppp authentication chap
Local(config-ppp 1)#username Peer password same
On the peer (hostname Peer):
Peer(config-ppp 1)#ppp authentication chap
Peer(config-ppp 1)#username Local password same
This is basically identical to Example 1 except that both routers will now challenge each other and
respond.
Configuring CHAP Example 4: Both routers require each other to authenticate themselves using
two separate shared passwords.
On the local router (hostn ame Local):
Local(config-ppp 1)#ppp authentication chap
Local(config-ppp 1)#username Peer password far
Local(config-ppp 1)#ppp chap password near
On the peer (hostname Peer):
Peer(config-ppp 1)#ppp authentication chap
Peer(config-ppp 1)#username Local password near
Peer(config-ppp 1)#ppp chap password far
This is basically identical to Example 3, except that there are two separate shared passwords.