ADTRAN 5000 Series Command Reference Manual page 955

Command Reference Guide
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.
Both ends must have identical passwords.
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.
Notice this example has both ends using different sets of passwords.
61200990L1-35E
PPP Interface Configuration Command Set
Copyright © 2005 ADTRAN 955