Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 1090

JUNOS 10.1 Network Interfaces Configuration Guide
chap
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
Statement introduced before JUNOS Release 7.4.
Release Information
Allows each side of a link to challenge its peer, using a "secret" known only to the
Description
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:
The statements are explained separately.
interface—To view this statement in the configuration.
Required Privilege Level
interface-control—To add this statement to the configuration.
Related Topics
1020
chap
access-profile name;
default-chap-secret name;
local-name name;
passive;
ppp-options]
—PPP over AAL5 LLC encapsulation.
atm-ppp-llc
atm-ppp-vc-mux —PPP over AAL5 multiplex encapsulation.
Configuring the PPP Challenge Handshake Authentication Protocol on page 124
JUNOS System Basics Configuration Guide