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What Is the Relationship Between OSPF Interface Authentication and Area Authentication?

Latest reply: Apr 22, 2017 08:09:41 1312 1 0 0 0
What Is the Relationship Between OSPF Interface Authentication and Area Authentication?
  • x
  • convention:

Adamcolob
Created Apr 22, 2017 08:09:41

The basic principles of OSPF authentication are as follows:

If authentication is configured on the interface, use the authentication on the interface. If null is configured on the interface, no authentication is performed on the interface.
If no authentication is performed on the interface (Null does not mean that no authentication is configured), the authentication configured on the area is used. If no authentication is configured on the area, either, no authentication will be performed.
Authentication commands in the area view:

authentication-mode simple [ plain plain-text | [ cipher ] cipher-text ]

authentication-mode { md5 | hmac-md5 | hmac-sha256 } [ key-id { plain plain-text | [ cipher ] cipher-text } ]

authentication-mode keychain keychain-name

Authentication commands on a common OSPF interface:

ospf authentication-mode simple [ plain plain-text | [ cipher ] cipher-text ]

ospf authentication-mode { md5 | hmac-md5 | hmac-sha256 } [ key-id { plain plain-text | [ cipher ] cipher-text } ]

ospf authentication-mode null

ospf authentication-mode keychain keychain-name

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