isis auth-key

Configures an authentication key for a specified Intermediate System-to-Intermediate System (IS-IS) interface.

Syntax

isis auth-key { level-1 | level-2 } string

no isis auth-key { level-1 | level-2 } string

Command Default

Disabled.

Parameters

level-1: Specifies Level 1 packets only.
level-2: Specifies Level 2 packets only.
string: Specifies a text string that is used as an authentication password. The string can be from 1 through 63 ASCII characters in length.

Modes

Interface subtype configuration mode

Usage Guidelines

IS-IS is supported on the Extreme 8820, SLX 9740, SLX 9640, and SLX 9540 devices only..

The authentication mode must be configured on the interface using the isis auth-mode command before a string can be configured. If the authentication mode is reset, the authentication key must also be reset.

The no form of the command removes the configured authentication key for the IS-IS interface.

Note

MD5 passwords cannot have ASCII character 32 ('SPACE') as a part of the password string.

Examples

The following example configures an authentication key for Level 1 packets on an IS-IS Ethernet interface.

device# configure terminal
device(config)# interface ethernet 1/1
device(conf-if-eth-1/1)# isis auth-key level-1 mykey