Your network consists of multiple remote locations using both IPv4 and IPv6. You have an IPv4-based Internet connection at each site provided by different, local service providers. You are asked to ensure that the remote IPv6 networks are able to communicate.
What should you do?
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A. B. C. D.C
The correct answer is B, create IPsec tunnels between the remote locations to connect the IPv6 networks.
Explanation: To ensure that the remote IPv6 networks can communicate with each other, we need to create a secure and encrypted connection between them. IPsec tunnels provide this secure connection by encrypting the data that is transmitted between the remote locations.
GRE tunnels (A) are used to encapsulate multiple protocols over a single, virtual point-to-point link. They do not provide encryption or security, and therefore are not suitable for this scenario.
IP-IP tunnels (C) are similar to GRE tunnels in that they encapsulate multiple protocols over a single, virtual point-to-point link. Again, they do not provide encryption or security, and therefore are not suitable for this scenario.
MPLS tunnels (D) are used to provide a high-performance, label-switched path through a network. They do not provide encryption or security, and therefore are not suitable for this scenario.
Therefore, the best option to ensure secure communication between the remote IPv6 networks is to create IPsec tunnels between them. IPsec provides encryption and security for the data that is transmitted over the tunnels, ensuring that it cannot be intercepted or tampered with by unauthorized parties.