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Cisco IOS in a Nutshell, 2nd Edition by James Boney

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Name

isis authentication mode — interface

Synopsis

isis authentication mode {md5 | text} [level-1 | level-2 ]
no isis authentication mode {md5 | text} [level-1 | level-2]

Configures

Authentication for IS-IS routing

Default

Disabled

Description

This command configures the type of authentication for IS-IS routing on a interface. The type can be md5 (Message Digest 5) or text (clear text). The optional keywords level-1 and level-2 specify that packets from level-1 or level-2 routers must be authenticated.

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