BillSniff

network protocol analyzer

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BillSniff is a network protocol analyzer (sniffer) that provides detailed information about current traffic, as well as overall protocol statistics and more. It supports various protocols including ip4, TCP, UDP, IEEE 802.2 frame, Ethernet II frame, NetBios, IPX and others. In addition to real-time monitoring it includes a extensive array of filter options that allow you to limit capture based on IP, Port, Protocol, MAC address, packet size and other criteria, as well as graphical statistics for network layers. You can also use BillSniff to send packets and script custom protocols.

Free Trial, $29.45 to buy