You can use the 'nc' command, it comes with cygwin
nc -l 2204 | nc 127.0.0.1 2207
or this port remapper has a GUI http://www.kmint21.com/free/
pm.exe <lp> <rip> <rp> [w] [h] lp - local port rip - remote ip rp - remote port w - write log h - hidden mode
or ssh making a connection to yourself 127.0.0.1 and forward to wherever (ssh -L) tunneling. So you set up a local ssh server. Then you connect to it ssh -L 2204:127.0.0.1:2207 user@127.0.0.1
And then one side of the connection will listen and the other side(the ssh server side) will forward to that ip:port. So your local computer is listening on port 2204 and the remote machine is forwarding to 127.0.0.1:2207