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In an IPv4 packet, the value of Header Length is 5, and the value of the Total Length field is 240. How many bytes of data are being carried by this packet

User Ianml
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2 Answers

29 votes
29 votes

Final answer:

There are 220 bytes of data being carried by an IPv4 packet with a Header Length of 5 and a Total Length of 240, calculated by subtracting the header size (20 bytes) from the Total Length.

Step-by-step explanation:

The student has asked how many bytes of data are being carried by an IPv4 packet with a Header Length of 5 and a Total Length of 240. In IPv4 packets, the Header Length field indicates the number of 32-bit words in the header. Since the Header Length is 5, this means the header is 5 * 32 bits, or 20 bytes long. The Total Length field specifies the entire packet size in bytes, including the header and the data. Therefore, if the Total Length is 240 bytes and the header is 20 bytes, the size of the data being carried is the Total Length minus the header size, giving us 240 - 20 = 220 bytes of data.

User Abhilash Ranjan
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3.0k points
14 votes
14 votes

Answer:

235 bytes

Step-by-step explanation:

The Total Length field includes both the header and payload length, so therefore the payload will be (240 - 5) or 235 bytes.

User Thanasis Kapelonis
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