It is the missing link between devices that speak UDP on your network.
Active Ports monitors all open TCP and UDP ports on a local computer.
UDP Test Tool is both a UDP packet generator and listening application.
Monitor open TCP and UDP ports and applications that open them on your PC.
Simple Port Tester is a neat application created to test TCP and UDP ports.
upRedSun and iForwarder, Inc.
It will let you port forwarding to multiple IP addresses at the same time.
Verigio Communications Inc.
Multi Port Forwarder enables you to redirect requests to another IP and port.
The dialer uses one local UDP port and one local TCP port.
ServerTalk lets you communicate directly with a TCP or UDP port on a server.
VirtualCOM-UDP is a software based UDP/COM Port Redirector solution.
NetworkActiv AUTAPF is a UDP and TCP port forwarder.
Serial Port Tool
Professional debug tool for serial port, TCP/IP, UDP, I2C, HTTP communication.
Scriptable data terminal supporting serial port, UDP, TCP client/server, etc.