Wireshark (formerly Ethereal) is a network protocol analyzer for Unix and Windows. It allows you to examine data from a live network or from a capture file on disk. You can interactively browse the capture data, viewing summary and detail information for each packet. Has several powerful features, including a rich display filter language and the ability to view the reconstructed stream of a TCP session.
Network Analyzer, Open-Source, Open Source, Freeware, Software, Download