An IP packet has arrived with the first 8 bits as 00000010 . Which of the…
2022
An IP packet has arrived with the first 8 bits as 00000010 . Which of the following is correct?
- A.
The number of hops this packet can travel is 2
- B.
The total no. of bytes in header is 16 bytes
- C.
The upper layer protocol is ICMP
- D.
The receiver rejects the packet
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Correct answer: D
The first 8 bits of an IP header represent Version (4 bits) + IHL (4 bits). 00000010 → Version = 0000 (invalid, should be 4 for IPv4)
IHL = 0010 → Header length = 2 × 4 = 8 bytes (minimum valid header is 20 bytes)
Since both version and header length are invalid, the IP packet is rejected by the receiver.