isis authentication send-only — interface
isis authentication send-only [level-1 | level-2] no isis authentication send-only [level-1 | level-2]
Authentication for IS-IS routing
This command tells the interface that only outgoing IS-IS packets are authenticated. Normally, when authentication is configured for IS-IS, both incoming and outgoing packets are authenticated. The keywords
level-2 specify that only packets sent from level-1 or level-2 routers must be authenticated.