authentication mode
Use this command to set the authentication mode at the instance level.
If clear-text authentication was configured using the area-password or domain-password commands, the authentication mode command overrides both of those commands (based on the level at which MD5 is configured). If the authentication mode command was used first, and subsequently an attempt is made to use the area-password or domain-password commands, the attempt fails. To configure clear-text authentication using the area-password or domain-password commands, first use the no authentication mode command.
The type of authentication and the level to which it applies can be specified for a single ISIS interface, rather than per ISIS instance, using the isis authentication mode command.
Use the no parameter with this command to unset the authentication mode.
Command Syntax
authentication mode {md5|text} (level-1|level-2|)
no authentication mode {md5|text} (level-1|level-2|)
Parameters
md5
Keyed message digest
text
Text mode
level-1
Specify an authentication key-chain for level-1 PDUs.
level-2
Specify an authentication key-chain for level-2 PDUs.
Default
The authentication mode is set to MD5 for both levels if no level is specified.
Command Mode
Router mode
Applicability
This command was introduced before OcNOS version 1.3.
Examples
#configure terminal
(config)#router isis 1
(config-router)#authentication mode md5 level-1
(config-router)#no authentication mode md5 level-1
Last modified date: 08/28/2023