Table of Contents
Advertisement
When you configure PPP over ATM or Multilink PPP over ATM encapsulation, you
can enable CHAP on the logical interface. For more information, see "Configuring
PPP over ATM2 Encapsulation" on page 342.
Assigning an Access Profile to an Interface
To assign an access profile to an interface, include the
the
You must include the
authentication method. If an interface receives a CHAP challenge or response from
a peer that is not in the applied access profile, the link is immediately dropped unless
a default CHAP secret has been configured. For information about configuring the
default CHAP secret, see "Configuring a Default CHAP Secret" on page 125.
Configuring a Default CHAP Secret
To configure a default CHAP secret for an interface, include the
statement at the
The default CHAP secret is used when no matching CHAP access profile exists, or if
the CHAP name changes during PPP link negotiation.
Configuring the Local Name
By default, when CHAP is enabled on an interface, the interface uses the router s
system hostname as the name sent in CHAP challenge and response packets.
To configure the name the interface uses in CHAP challenge and response packets,
include the
chap]
The local name is any string from 1 to 250 characters in length, starting with an
alphanumeric or underscore character, and including only the following characters:
Configuring the Local Name on page 125
Configuring Passive Mode on page 126
Example: Configuring the PPP Challenge Handshake Authentication
Protocol on page 126
[edit interfaces interface-name ppp-options chap]
[edit interfaces interface-name ppp-options chap]
access-profile name;
access-profile
[edit interfaces interface-name ppp-options chap]
[edit interfaces interface-name ppp-options chap]
default-chap-secret name;
local-name
statement at the
hierarchy level:
[edit interfaces interface-name ppp-options chap]
local-name name;
a-z A-Z 0-9 % @ # / \ . _ -
Configuring the PPP Challenge Handshake Authentication Protocol
Chapter 3: Configuring Physical Interface Properties
access-profile
hierarchy level:
statement when you configure the CHAP
[edit interfaces interface-name ppp-options
statement at
default-chap-secret
hierarchy level:
125
Advertisement
Table of Contents
