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authentication-type (Protocols IS-IS)



Hierarchy Level

Release Information

Statement introduced before Junos OS Release 7.4.

Statement introduced in Junos OS Release 9.0 for EX Series switches.

Statement introduced in Junos OS Release 12.1 for the QFX Series.

Statement introduced in Junos OS Release 14.1X53-D20 for the OCX Series.


Enable authentication and specify the authentication scheme for IS-IS. If you enable authentication, you must specify a password by including the authentication-key statement.


If you do not include this statement and the authentication-key statement, IS-IS authentication is disabled.


authentication—Authentication scheme:

  • md5—Use HMAC authentication in combination with MD5. HMAC-MD5 authentication is defined in RFC 2104, HMAC: Keyed-Hashing for Message Authentication.

  • simple—Use a simple password for authentication. The password is included in the transmitted packet, making this method of authentication relatively insecure. We recommend that you not use this authentication method.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.