An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office. What is causing the problem?
A: There is an area ID mismatch.
B: There is a PPP authentication issue; the username is not configured on R3 and R6.
C: There is an OSPF hello and dead interval mismatch.
D: The R3 router ID is configured on R6.
Answer:D
An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office. What is causing the problem?
A: There is an area ID mismatch. B: There is a PPP authentication issue; the username is not configured on R3 and R6. C: There is an OSPF hello and dead interval mismatch. D: The R3 router ID is configured on R6.