ADTRAN AOS Version R10.1.0 Command Reference Manual page 2569

Command Reference Guide
ppp authentication
Use the ppp authentication command to specify the authentication protocol on the Point-to-Point
Protocol (PPP) virtual interface that the peer should use to authenticate itself. Use the no form of this
command to disable this feature. Variations of this command include:
ppp authentication chap
ppp authentication pap
Syntax Description
chap
pap
Default Values
By default, PPP endpoints have no authentication configured.
Command History
Release 1.1
Technology Review
CHAP and PAP are two authentication methods that enjoy widespread support. Both methods are included
in AOS and are easily configured.
The authentication method set up on the local router can be different from that on the peer.
Also, just because one router requires authentication from its peer does not mean it also
has to authenticate itself to the peer.
Defining PAP
PAP is used to verify that the PPP peer is a permitted device by checking a user name and password
configured on the peer. The user name and password are both sent unencrypted across the connecting
private circuit.
PAP requires two-way message passing. First, the router that is required to be authenticated (for example,
the peer) sends an authentication request with its user name and password to the router requiring
authentication (for example, the local router). The local router then looks up the user name and password
in the user name database within the PPP interface, and if they match sends an authentication
acknowledge back to the peer.
The PPP user name and password database is separate and distinct from the global user
name password database. For PAP and CHAP, use the database under the PPP interface
configuration.
60000CRG0-35E
Configures Challenge-Handshake Authentication Protocol (CHAP) on the
interface.
Configures Password Authentication Protocol (PAP) on the interface.
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
PPP Interface Command Set
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