which of the following is true?

A router has been configured with OSPF authentication on interface fa0/0. The OSPF
neighbor relationship is not forming. You issue a “debug ip ospf events” command and see
the following log message:
05:01:35: OSPF: Rcv pkt from 192.168.2.2, OSPF_VL0 : Mismatch Authentication type.
Input packet specified type 0, we use type 1
Using this information, which of the following is true? Choose the best answer.

A router has been configured with OSPF authentication on interface fa0/0. The OSPF
neighbor relationship is not forming. You issue a “debug ip ospf events” command and see
the following log message:
05:01:35: OSPF: Rcv pkt from 192.168.2.2, OSPF_VL0 : Mismatch Authentication type.
Input packet specified type 0, we use type 1
Using this information, which of the following is true? Choose the best answer.

A.
Fa0/0 on the local router has the following configuration.
ip ospf authentication type-1

B.
Fa0/0 on the local router has the following configuration.
ip ospf authentication

C.
Fa0/0 on the local router has the following configuration.
ip ospf authentication null

D.
Fa0/0 on the local router has the following configuration.
ip ospf authentication message-digest



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