基于PCP协议的TCP NAT穿越的研究与实现

Study and Implementation of TCP NAT Traversal Based on PCP Protocol

目前有许多基于PCP协议开发的P2P视频播放软件,在实现不同内网节点之间的视频数据流的交换时会面临TCP NAT穿越的问题.鉴于此,本文在研究实现TCP NAT穿越的关键技术的基础上,提出和详细叙述了一种可靠的TCP NAT穿越实现原理以及通过对PCP协议的扩展来实现基于PCP协议的TCP NAT穿越的实现过程,并最终通过实验和分析来验证TCP NAT穿越的可靠性.

At present, many P2P live streaming video systems developed based on PCP protocol are faced with the problem of TCP NAT traversing when implementing exchanging of live streaming among different internal net peers. In view of the problem, this paper brings out and describes in detail a reliable kind of implementing principle of TCP NAT traversal and implementing process of TCP NAT traversal based on PCP protocol by expanding PCP protocol after the study of the key technology of TCP NAT traversal, and verifies the reliability of TCP NAT traversal by experiment and analysis.