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chap

Syntax

Hierarchy Level

[edit interfaces interface-name ppp-options],[edit interfaces interface-name unit logical-unit-number ppp-options],[edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number ppp-options]

Release Information

Statement introduced before JUNOS Release 7.4.

Description

Allows each side of a link to challenge its peer, using a “secret” known only to the authenticator and that peer. The secret is not sent over the link.

By default, PPP CHAP is disabled. If CHAP is not explicitly enabled, the interface makes no CHAP challenges and denies all incoming CHAP challenges.

For ATM2 IQ interfaces only, you can configure CHAP on the logical interface unit if the logical interface is configured with one of the following PPP over ATM encapsulation types:

  • atm-ppp-llc—PPP over AAL5 LLC encapsulation.
  • atm-ppp-vc-mux—PPP over AAL5 multiplex encapsulation.

The statements are explained separately.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.


Published: 2010-04-20

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