ssh udp

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

monitor all open TCP/IPs and UDP ports on the local computer

It displays all currently opened TCP/IP and UDP ports on your local computer

Monitoring servers/services with ping or a socket connection (TCP or UDP).

Use this software to open server side TCP/UDP (proxy) ports with load balancing.

Automated testing tool for serial communication protocols via COM, TCP and UDP

proxy server HTTP, HTTPS, SOCKS v4/4a/5, FTP, POP3, UDP/TCP portmapping

Windows RS232/485, UDP/IP, TCP Client & TCP Server terminal. Just .EXE file!