Implementing Secure Solutions with Virtual Private Networks (SVPN) — Question 47

Which parameter must match on all routers in a DMVPN Phase 3 cloud?

Answer options

• A. GRE tunnel key
• B. NHRP network ID
• C. tunnel VRF
• D. EIGRP split-horizon setting

Correct answer: A

Explanation

The GRE tunnel key must be the same on all routers in a DMVPN Phase 3 cloud to ensure proper encapsulation and communication across the network. Other options, such as NHRP network ID, tunnel VRF, and EIGRP split-horizon settings, do not need to match for the DMVPN configuration to function correctly.