The IP header indicates whether this is the first fragment versus a latter fragment? The IP header indicates that the datagram been fragmented? What information in Print out the first fragment of the fragmented IP datagram. Has that message beenįragmented across more than one IP datagram?ġ1.

You changed the Packet Size in pingplotter to be 2000. Find the first ICMP Echo Request message that was sent by your computer after The time to live remains the same as it is a constant.ġ0. The identification field changes in the ICMP TTL-exceeded replies for it needs to be unique. To your computer by the nearest (first hop) router? Why? Do these values remain unchanged for all of the ICMP TTL-exceeded replies sent What is the value in the Identification field and the TTL field?ĩ. The value of the identification field is incremented by 1 on every new outgoing message.Ĩ. Describe the pattern you see in the values in the Identification field of the IP datagram. The fragment number, sequence number, flags, total length and checksum very from each segment so they change.ħ. Header length and time to live stay constant because these are preset. Which fields stay constant? Which of the fields must stay constant? Which fields The checksum always changes and so does the sequence numberĦ. Within this series of ICMP messages sent by your computer? Which fields in the IP datagram always change from one datagram to the next I know this because the more fragments bit has not been set.ĥ. This IP datagram has not been fragmented. Has this IP datagram been fragmented? Explain how you determined whether or Payload = Total Length: 56 – header length:20 = 36 bytes.Ĥ. IP datagram? Explain how you determined the number of payload bytes.

How many bytes are in the IP header? How many bytes are in the payload of the.

Within the IP packet header, what is the value in the upper layer protocol field?.

What is the IP address of your computer?.

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