Use netstat utility to check that there is no longer established connection betw

Question

Use netstat utility to check that there is no longer established connection between your host and cse.spsu.edu. If you do not see connection, then stop network capture in Wireshark. If connection is still active, wait a little bit longer.

Examine next six TCP segments and draw diagram similar to one below. All necessary information can be found in packet details pane. (see next page)

3. What did you check for (in the trace) in order to answer this question?

4. How much data does the receiver typically acknowledge in an ACK?

5. Find segment(s) related to teardown phase? How many segments do you see? What flags are set in those segments?

Examine next six TCP segments and draw diagram similar to one below. All necessary information can be found in packet details pane. What did you check for (in the trace) in order to answer this question? How much data does the receiver typically acknowledge in an ACK? Find segment(s) related to teardown phase? How many segments do you see? What flags are set in those segments?

Explanation / Answer

(1)   What did you check for (in the trace) in order to answer this question?

We can verify this by checking the sequence numbers of the TCP segments in the trace file.

(2)   How much data does the receiver typically acknowledge in an ACK?

54 byte data is typically acknowledge in an ACK.

(3)   

Find segment(s) related to teardown phase? How many segments do you see? What flags are set in those segments?

In teardown phase ACK ad RST flags are set.

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