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network-programmingtcpfiltertcpdumpsystem-administration

tcpdump to filter tcp traffic into csv file

Can somebody tells me how to use tcpdump to filter out udp or tcp traffic on a specific source and destination ip and save the output into a csv file? Its not necessary a csv file if I can convert the pcap file into a csv by using an etl tool.

Also I am interested in a 100ms time resolution when I collect the data, can I do it with tcpdump?

Thanks.

Solution

  • I doubt you could ask tcpdump to write in a CSV file, this tool is too simple.

    But you could ask tshark(it's a console utility from the wireshark package) to do it.

    see https://ask.wireshark.org/questions/2935/creating-a-csv-file-with-tshark