authentication key-chain
Use this command to set the key chain to be used for authentication at the instance level. Authentication mode must be set to md5 to configure the key chain. If no key chain is configured with the key-chain command, no key-chain authentication is performed.
Only one authentication key-chain is applied to an ISIS interface at a time. That is, issuing a second isis authentication key-chain command overrides the first isis authentication key-chain command. If neither the level-1 nor the level-2 keyword is configured, the chain applies to both levels. Authentication can be specified for an individual ISIS interface using the isis authentication key-chain command.
Use the no parameter with this command to unset the key chain used for authentication.
Command Syntax
authentication key-chain WORD (level-1|level-2|)
no authentication key-chain (level-1|level-2|)
Parameters
WORD
Specify the chain name (valid authentication keys).
level-1
Specify an authentication key-chain for level-1 PDUs.
level-2
Specify an authentication key-chain for level-2 PDUs.
Default
The key chain applies to the level(s) on which authentication mode is configured as MD5 if no level is specified.
Command Mode
Router mode
Applicability
This command was introduced before OcNOS version 1.3.
Example
#configure terminal
(config)#router isis 1
(config-router)#authentication key-chain myKey level-1
Last modified date: 08/28/2023