Refer to the exhibit. Cisco IOS routers R1 and R2 are interconnected using interface Gi0/0. Which configuration allows R1 and R2 to form an OSPF neighborship on interface Gi0/0?
Refer to the exhibit. Cisco IOS routers R1 and R2 are interconnected using interface Gi0/0. Which configuration allows R1 and R2 to form an OSPF neighborship on interface Gi0/0?
In OSPF, if an interface is configured as passive, it prevents the router from sending OSPF Hello packets and forming OSPF adjacencies on that interface. From the exhibit, R1 has Gi0/0 set as a passive interface as indicated by 'No hellos (Passive interface)'. To allow R1 and R2 to form an OSPF neighborship on interface Gi0/0, it is necessary to change this configuration. Therefore, the command required is to remove the passive-interface setting on Gi0/0 for R1, enabling it to send Hello packets and establish an OSPF adjacency. Hence, the correct answer is to configure 'no passive-interface Gi0/0' on R1.
C is correct - Gi0/0 on R1 is not sending hellos on that interface.
Answer is correct.
When you assign an interface as passive, the interface now will not send out OSPF Hello messages and will not process any received OSPF packets.
C is correct
R1 output says ("No hellos, passive interface")
100%, answer is correct