Specify the authentication type used for remote Intermediate-System-to-Intermediate-System (IS-IS) hello packets on the interface. The type can be none, simple, hmac-md5, or hmac-sha-256.
default isis remote hello-auth
isis remote hello-auth type { none | simple | hmac-md5 | hmac-sha-256 }
isis remote hello-auth type { none | simple | hmac-md5 | hmac-sha-256 } key WORD<1-16>
isis remote hello-auth type { none | simple | hmac-md5 | hmac-sha-256 } key WORD<1-16> key-id <1-255>
no isis remote hello-auth
Simple - Simple password authentication uses a text password in the transmitted packet. The receiving router uses an authentication key (password) to verify the packet. You can also specify a key value.
hmac-md5 - MD5 authentication creates an encoded checksum in the transmitted packet. The receiving router uses an authentication key (password) to verify the MD5 checksum of the packet. You can also specify a key value and key-id.
hmac-sha-256 - With SHA-256 authentication, the switch adds an HMAC-SHA256 digest to each Hello packet. The switch that receives the Hello packet computes the digest of the packet and compares it with the received digest. If the digests match, the packet is accepted. If the digests do not match, the receiving switch discards the packet. You can also specify a key value and key-id.
The default is no authentication type (none).
GigabitEthernet Interface Configuration
This command does not apply to all hardware platforms. For more information about feature support, see Fabric Engine Feature Support Matrix.