You have just completed an OSPF implementation. While executing your verification plan,
you determine that R1 is not able to establish fullOSPF adjacency with R2. The show ip
ospf neighbor command output on R1 shows that R2 isstuck in the INIT state. What could
be the cause of this problem? Select the best response.

A.
DR and BDR election errors between R1 and R2.

B.
The R2 router has not received the OSPF hello packets from the R1 router.

C.
Mismatched interface maximum transmission unit (MTU) configuration between the R1
and R2.

D.
Mismatched OSPF hello interval configuration between the R1 and R2.

E.
Corrupted LSAs exchanges between the R1 and R2.

Explanation:
When a router receives an OSPF Hello from a neighbor, it sends the Hello packet by
including that neighbor’s router ID in the Hello packet. If the neighbor does not receive this
packet (means that it doesn’t see itself in this packet), it will be stuck in INIT state. INIT state
can be understood as a one-way Hello. An example ofa router stuck in INIT state is shown
below: