Easy program to sniff and view IP packets (TCP, UDP, ICMP). PacketViewer allows you to view IP packet messages and IP packet informations in real time. You can easily listen on Windows system ports (Eg. Ports 135, 445, 1026-1028). An IP Converter tool allows you to convert IP Addresses to Host Names. The button "Options..." opens the PacketViewer options: Protocol Filter, TCP packets Filter, Addresses IP and Ports Filter......
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This download (PacketViewer) is freeware. "Freeware is copyrighted computer software which is made available for use free of charge, for an unlimited time, as opposed to shareware where the user is required to pay (e.g. after some trial period or for additional functionality)." More info at
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