Designing Cisco Enterprise Networks (ENSLD) — Question 271

An architect is designing a network solution for a customer. The network is IPv6-only with 1000 hosts. The design must provide external access to up to 10 concurrent IPv6 hosts to allow communication with legacy IPv4 devices on an adjacent network. The customer set aside 10 IPv4 addresses to allow for one-to-one communication between hosts. Which solution must the architect select?

Answer options

Correct answer: C

Explanation

The correct answer is C, stateful NAT64, which allows IPv6 hosts to communicate with IPv4 addresses by translating the addresses dynamically. This solution is suitable for the requirement of supporting concurrent connections and managing the reserved IPv4 addresses. The other options, such as static NAT-PT and dynamic NAT-PT, do not effectively handle the translation needs for the specified number of concurrent hosts, and dynamic NPTv6 is not designed for IPv4 compatibility.