ADTRAN 1000R Series - Manual (Page 1097)

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 (hostname 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 (hostname 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.
Both ends must have identical passwords.
Notice this example has both ends using different sets of passwords.