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Question 254

Refer to the exhibit. A network engineer must establish communication between three different customer sites with these requirements:

* Site-A: must be restricted to access to any users at Site-B or Site-C.

* Site-B and Site-C: must be able to communicate between sites and share routes using OSPF.

PE interface configuration:

interface FastEthernet0/0

ip vrf forwarding Site-A

!

interface FastEthernet0/1

ip vrf forwarding SharedSites

!

interface FastEthernet0/2

ip vrf forwarding SharedSites

Which configuration meets the requirements?

    Correct Answer: D

    To establish the required communication restrictions and allow inter-site communication and route sharing for Site-B and Site-C using OSPF, the configuration needs different OSPF process IDs for each VRF. Site-A must have its OSPF configurations isolated, while SharedSites, which includes Site-B and Site-C, must share the same OSPF area to enable route sharing. Therefore, configuring different OSPF process IDs for each VRF and ensuring that both VRFs use area 0 meets the requirements. This configuration ensures Site-A remains restricted while allowing full communication between Site-B and Site-C.

Discussion
jarzOption: D

Answer is D And before you ask, you need unique process IDs in each VRF.

chris7890Option: D

I think the correct Answer is D

IceFireSoul

Why you think answer is D ? What your reasoning ?

jarz

you need to configure different process ID in the VRFs

Almylle

Because you need to configure diferent process ID, the area is independent because of the VRF, but in this case the process ID is not independent.

SeMo0o0o0Option: D

D is correct

diskmanOption: D

The OSPF area must be 0 for the both OSPF VRF instances and the OSPF process ID must be different for each respectively

Rajnivas02Option: D

I would choose Answer D as it's in only area 0 B also correct as the traffic can flow between areas. Anythoughts ?

bk989Option: B

B also has different process-id: why cannot use two ospf Domains?

d8a1b94

Hey bk For me, B is disqualified since the OSPF config for vrf "SharedSites" only contains a area 1 network and this implicit means that there is no area 0 which is mandatory.

inteldarvidOption: D

Correct is "D"