ADTRAN Stub Routing Spécifications télécharger pdf (Page 487)

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Command Reference Guide PPP Interface Configuration Command Set

Several example scenarios are given below for clarity.

Configuring CHAP Example 1: Only the local router requires the peer to authenticate itself.

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)#

username Local password same

The first line of this configuration sets the authentication mode to CHAP. This means the peer is required to

authenticate itself to the local router via CHAP. The second line is the username and password expected to be

sent from the peer. The peer must also have the

username

command set up both to verify the incoming

username from the local router and to use the password (along with its hostname) in the response to the local

router.

Both ends must have identical passwords.

Configuring CHAP Example 2: Both routers require the peer to authenticate itself.

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.

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