Implementing Secure Solutions with Virtual Private Networks (SVPN) — Question 177

Which technology and VPN component allows a VPN headend to dynamically learn post NAT IP addresses of remote routers at different sites?

Answer options

• A. DMVPN with ISAKMP
• B. GETVPN with ISAKMP
• C. DMVPN with NHRP
• D. GETVPN with NHRP

Correct answer: C

Explanation

The correct answer is C, DMVPN with NHRP, as NHRP (Next Hop Resolution Protocol) allows for the dynamic discovery of remote peer addresses, particularly in a NAT environment. Options A and B involve ISAKMP, which is used for key management but does not facilitate dynamic address learning, while option D, GETVPN with NHRP, is not applicable as GETVPN does not utilize NHRP for this purpose.