When we looked at the packets involved in the TCP 3-way handshake, we paid particular attention to the flags field in the TCP header. The only time a packet’s SYN flag is set is if it is one of the first two packets involved in the 3-way handshake. This means that whenever a packet arrives with its SYN flag set, someone is trying to create a TCP connection. Notice in today’s output that every TCP header has an acknowledgment number and the ACK flag is set; the onlyexception to this ru
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Sunday, February 10th, 2008 at 2:32 pm
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