Two neighboring routers are able to form an OSPF adjacency, but are not able to establish
an IBGP neighborship. What are two reasons for the IBGP neighborship problem? (Choose
two.)

A.
One of the devices has a misconfigured BGP peer address.

B.
A firewall filter on one of the interfaces is blocking TCP traffic.

C.
One or both of the connected interfaces are missing the family iso statement.

D.
OSPF has a lower route preference than BGP.

Explanation: