Specifies the type of authentication used for an Intermediate System-to-Intermediate System (IS-IS) interface.
Disabled.
Interface subtype configuration mode
IS-IS is supported only on devices based on the DNX chipset family. For a list of such devices, see "Supported Hardware".
The no form of the command removes the configured authentication mode.
The following example specifies that MD5 authentication is performed on 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-mode MD5 level-1