Implementing Secure Solutions with Virtual Private Networks (SVPN) — Question 55

A DMVPN spoke router tunnel is up and passing traffic, but it cannot establish an EIGRP neighbor relationship with the hub router. Which solution resolves this issue?

Answer options

• A. Enable EIGRP Split Horizon on the hub tunnel interface.
• B. Remove the EIGRP stub configuration on the spoke tunnel interface.
• C. Enable the EIGRP next hop self feature on the hub tunnel interface.
• D. Configure the dynamic NHRP multicast map on the hub tunnel interface.

Correct answer: D

Explanation

The correct answer is D because configuring the dynamic NHRP multicast map on the hub tunnel interface allows for proper multicast routing, which is essential for EIGRP neighbor discovery in a DMVPN environment. The other options either do not apply to DMVPN configurations or are not relevant to establishing EIGRP neighbor relationships.