a way to control a remote host behind NAT (implementation)
yep, after the problem and the theoretical solution, here is a couple of implementations.
prolunga is an user oriented solution. it is provided with a plain README file which will help you understand the concept and its implementation. with a pair of minor changes you will also be able to daemonize it. the readme file contains also ideas for further developments. I haven’t still tried to compile it on windows, but it works on gnu/linux
bidipipes is the minimal solution. a pragmatic readme is provided, and it won’t help you setting up the environment. in this case, the only help will be the image on the previous post. this software is fully tested on windows/cygwin.
Once compiled, both softwares will need as well nc(1). 
so far, here are the links towards the code:
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