300-420 Question 53
Single answerA network engineer is designing an enterprise network that must support both IPv4 and IPv6 traffic without requiring translation or tunneling. The solution should ensure that hosts on the network can natively communicate using either protocol. Which deployment method would best meet these requirements?
- A
Dual-stack implementation
- B
NAT64 translation
- C
IPv6 over IPv4 tunneling
- D
IPv4-to-IPv6 proxy
Show answer and explanation
Correct answer: A
Explanation
The dual-stack implementation is the ideal solution when both IPv4 and IPv6 traffic need to be supported natively within the same network. It allows hosts to communicate directly using either protocol without requiring translation mechanisms like NAT64 or tunneling methods, ensuring optimal compatibility and performance.
- A. Correct.
Dual-stack implementation allows devices to run both IPv4 and IPv6 simultaneously, enabling native communication for both protocols without requiring translation or tunneling. This fully satisfies the scenario's requirements.
- B. Incorrect.
NAT64 translation is used to facilitate communication between IPv4 and IPv6 hosts when they do not natively support each other's protocol. However, this involves translation, which was explicitly ruled out in the scenario.
- C. Incorrect.
IPv6 over IPv4 tunneling encapsulates IPv6 traffic within IPv4 packets, which is a form of tunneling. This does not meet the requirement for native communication using both protocols.
- D. Incorrect.
IPv4-to-IPv6 proxy is a solution for protocol translation between IPv4 and IPv6, but it does not allow native communication for both protocols as required in the scenario.