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I am trying to extract session level (flow level) information from my pcap trace file.

I want to generate the following data for each line of session (flow):

 Flow_num, IP_Src, IP_Dst, Flow_start_time, Flow_Duration, Flow_type (video/image/text/...), Protocol, Flow_size
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Use tcpdump to display pcap file then use a script to filter/calculate the output. Check out this link about tcpdump and pcap.

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