An IPV4 packet has arrived with first 8 bits as shown : 0100 0010.The reciever discards.Why?

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written 7.1 years ago by

teamques10 ★ 64k

modified 23 months ago by

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1 Answer

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written 23 months ago by

There is an error in this packet.

The 4 left-most bits (0100) show the version, which is correct.

The next 4 bits (0010) show the header length, which means (2 × 4 = 8), which is wrong.

The minimum the number of bytes in the header must be 20. The packet has been corrupted in transmission.

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