How to configure OSPF authentication
2023-12-21 09:33:04
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Network Topology
None
Problem Description
How to configure OSPF authentication
Process Analysis
OSPF adds the configured key into sent packets, and uses the key to authenticate received packets. Only packets that pass the authentication can be received.
If a packet fails the authentication, the OSPF neighbor relationship cannot be established.
If you configure OSPF authentication for both an area and an interface in that area, the interface uses the OSPF authentication configured on it.
Solution
Configure area authentication to ensure consistency between authentication type and password.
[spine]
ospf 1 router-id 172.16.13.1
area 0.0.0.0
authentication-mode hmac-md5 99 plain h3c.com
[Leaf]
ospf 1 router-id 172.16.13.2
area 0.0.0.0
authentication-mode hmac-md5 99 plain h3c.com