Komodia Relay
PortMapper
Portfwd
Simple Port Forwarding
Packet Sender
socat
Port Map
tcpdump
Vim Python IDE
Komodia Relay
Vim Python IDENo features have been listed yet.
PortMapper - Do you need to map a specific TCP or UDP port on your machine to another port on another machine?
Portfwd - Portfwd, Port Forwarding Daemon, stands for port forwarding daemon.
Simple Port Forwarding - Simple Port Forwarding works with WebPages and not directly with your router.
Packet Sender - Packet Sender can send and receive UDP, TCP, and SSL on the ports of your choosing.
socat - socat is a relay for bidirectional data transfer between two independent data channels.
Port Map - TheCodingMonkeys, authors of software like SubEthaEdit.