tcp ip

Monitor open TCP and UDP ports and software applications that open them on your computer.

"Socksify" TCP and UDP connections at the network layer.

Displays the list of all currently opened TCP/UDP ports on your computer.

Internet connection sharing proxy with website blocker, tcp port mapper

A free log monito/viewer for files,folders, event log, sql tables, rss, udp, tcp

LAN / TCP Network Performance Benchmark Utility for Windows

Using wodSSHTunnel you can secure any TCP connection by tunnelling it

show you detailed listings of all TCP and UDP endpoints on your system

NetFilter SDK is a developer toolkit for filtering TCP/UDP

Configurable UDP and TCP port forwarding for Windows