Users interested in Com port sniffer open source generally download:
Keep track of different COM ports, including, but not limited to RS232, RS485, and RS422. Establish various types of connections, select from three available operation modes, including Spy and RS232 Terminal, and view the transferred data in HEX, ASCII, and binary formats.
Comtrol Utility Package is an innovative software for serial port communication, testing, monitoring and reporting. Comtrol's free utilities package contains three useful software applications named Test Terminal, Port Monitor, and Peer Tracer for communicating directly, monitoring, and reporting statistics of any COM, RS-232, RS-422 and RS-485 serial ports you have installed in a system.
Network Sniffer is a Windows based Packet sniffer an Network analyzerNetwork Sniffer is a Windows based Packet sniffer an Network analyzer, a revolutionary new network management tool designed from the ground up with ease and functionality in mind.
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A high performance packet filtering engine for developing firewall.
firewall, sniffer or analyzer...powerful.; Source code...is open...IPs and ports