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Previous Year Question (PYQs)



IP datagram has arrived with following partial information in the header in hexadecimal:

45000054000300002006.....

What is the protocol of the payload being carried by the packet?





Solution

In IPv4 header, protocol field is after TTL.

Given header part:

45 00 00 54 00 03 00 00 20 06

Here, protocol field = 06

Protocol number 06 represents TCP.


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