Which interface configuration must be configured on the spoke A router to enable a dynamic DMVPN tunnel with the spoke B router?

Refer to the exhibit.

Which interface configuration must be configured on the spoke A router to enable a dynamic DMVPN tunnel with the spoke B router?

A)

B)

C)

D)

A. Option A

B. Option B

C. Option C

D. Option D

View Answer

Answer: B

Explanation:

The command Dip nhrp map multicast dynamic‖ should be only used on Hub router, not spoke. If we are running dynamic routing protocols based on multicast (like RIP, OSPF, EIGRP …) we have to add he command Dip nhrp map multicast dynamic‖ in Hub to replicate all multicast traffic to all dynamic entries in the NHRP table (multicast will be proceeded as unicast traffic) –

The ‖ tunnel source FastEthernet0/0″ is equivalent to Dtunnel source 172.17.0.2‖, which is the NBMA address of Spoke A.