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Suppose two IPv6 nodes want to interoperate using IPv6 datagrams, but they are connected to each other by intervening IPv4 routers. The best solution here is ________(a) Use dual-stack approach(b) Tunneling(c) No solution(d) Replace the systemThis question was addressed to me during an internship interview.I'd like to ask this question from IPv6Addressing topic in section TCP/IP Protocol Suite of Computer Network

Answer»

Correct ANSWER is (b) Tunneling

For explanation: The IPv4 ROUTERS can form a tunnel in which at the sender’s side, the IPV6 datagram is encapsulated in to IPv4, and at the RECEIVER’s side of the tunnel, the IPv4 packet is stripped and the IPv6 packet is SENT to the receiver.



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