Suppose one IPv6 router wants to send a datagram to another IPv6 router, but are connected together by intervening IPv4 routers. If the two routers use tunneling, then
a. The sending IPv6 router creates an IPv4 datagram and puts it in the data field of an Ipv6 datagram.

b. The sending IPv6 router creates an IPv6 datagram and puts it in the data filed of an IPv4 datagram.

c. The sending IPv6 router one or more IPv6 fragments, none of which is larger than the maximum size of an IPv4 datagram.

d. None of the above

The answer is (b.)The sending IPv6 router creates an IPv6 datagram and puts it in the data field of an IPv4 datagram.  

Explanation:

Since both routers are ipv6 versions and are connected together by intervening ipv4 router, then using tunneling method of connection, the best way would be for the sending ipv6 router to create an ipv6 datagram and then put it in the data field of an ipv4 datagram.

answer

option a)the former is primarily for third party access to data

.is the correct answer.

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