Ethereal is a free 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. Ethereal has several powerful features, including a rich display filter language and the ability to view the reconstructed stream of a TCP session. GUI:Есть Терминал:Есть Windows альтернатива : Ethereal ;) Программные требования : GTK+ 2.x libpcap Аппаратные требования :