Solution for NAT traversal of TCP in P2P communications

Network Address Translation(NAT) kit is doing well in dealing with the limitation of IPv4 addresses,however,it also bring some troubles to P-P communications.Now,there have been some standards and efficient solutions for NAT traversal of UDP communications.But as to TCP communications,NAT traversal is still needed researching.This paper provides a simple and efficient solution for NAT traversal of TCP communications,and presents detailed explanation to its realization for reader reference.