端到端通信中TCP穿越NAT的解决方案

Solution for NAT traversal of TCP in P2P communications

网络地址翻译(NAT)设备的应用很好地解决了IPv4地址不足的问题,但同时也给很多端到端通信带来了障碍。目前,对于UDP穿越NAT已经有了一些标准的、有效的解决方法,但对于TCP通信,NAT穿越技术还在研究之中。文章给出了一种较为简单有效的TCP穿越NAT的方法,并对其实现过程进行了详细的说明。

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.