Question

Two routers, R1 and R2, are directly connected over a point-to-point serial link running OSPFv3 for IPv6. The adjacency is stuck in EXSTART/EXCHANGE. R1's interface MTU is set to 1500 and R2's interface MTU is set to 1400. Both interfaces are in the same area and the interface network types match. Which action will bring the adjacency to FULL?

Accepted Answer

Match the MTU values on both interfaces, or configure 'ipv6 ospf mtu-ignore' on both interfaces

Answer

Change the OSPFv3 network type to broadcast on both interfaces

Answer

Ensure both routers use the same OSPFv3 process ID

Answer

Configure matching OSPFv3 authentication keys on both interfaces