Does there have any mature method to achieve the tcp traversal?

I'm going to do a test on udp and tcp traversal, I know that udp is easy to achieve traversal, but i don't kown if there have any meture method to achieve tcp traversal? if someone knows, please tell me how to achieve that, thanks.开发者_C百科

I have no experience of this but I found this article with source here with STUNT.