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I'm looking for a lightweight packet capture solution for Windows. It needs to capture all packets on a physical network device and write them to a file (preferably .pcap, because that's easiest for my postprocessing). I'd go with wireshark, but that maintains a graphical list and keeps a lot of the captured packets in memory, which may affect the way the system runs.

Is there something similar that will simply capture and write to a file? (All analysis can be done afterwards.)

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closed as off topic by Dave M, wizlog, Darth Android, Dennis, Karan Feb 18 '13 at 1:14

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Wireshark has a command-line tshark tool, which is just like tcpdump. –  grawity Feb 14 '13 at 22:56