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Question 257

Refer to the exhibit. An engineer must connect the IPv6 island to the IPv4-only network to provide IPv6 hosts access to file servers and DNS services in the IPv4 network. Which NAT should the engineer choose?

    Correct Answer: D

    In the given scenario, the engineer needs to connect an IPv6 network to an IPv4-only network to allow IPv6 hosts to access resources like file servers and DNS services in the IPv4 network. NAT-PT (Network Address Translation - Protocol Translation) is a relevant solution here as it translates addresses and protocols between IPv6 and IPv4. Since the interaction involves static and consistent access to specific resources (file servers and DNS services), static NAT-PT (option D) is the most appropriate choice. Static NAT-PT ensures that the translation remains consistent, providing a stable address mapping for the IPv6 hosts to communicate with the IPv4 servers.

Discussion
08511d4Option: B

B assuming it should be stateful NAT64

rickyarchiOption: C

Dynamic NAT-PT because the traffic is outbound from host to DNS only