Configuring PPP Authentication

You can optionally configure authentication tasks on a PPP interface such as requesting for authentication from a peer, specifying the authentication type, or the challenge length for CHAP authentication.

Note: The JunosE Software’s PPP application accepts null usernames during PAP and CHAP authentication. When the PPP application receives an authentication request that includes a null username, PPP passes the request to AAA. To take advantage of this feature, configure your authentication server to support the use of null usernames.

To optionally configure authentication on a PPP peer, you can:

• Request authentication from a peer and set the authentication method.

  See Requesting Authentication from a PPP Peer

• Modify the CHAP challenge length.

  See Modifying the Challenge Length for CHAP Authentication

• Specify the maximum number of retries for PAP and CHAP.

  See Configuring the Maximum Retries for PAP and CHAP Authentication