摘要
Pv4地址的日益减少和对网络安全性要求的提高导致了NAT设备的大范围使用。不同的NAT设备在面对进站或出站数据包时有不同的应对方法。近年来基本TCP协议的NAT穿越并没有通用完美的方法。在对NAT行为进行调研的基础上,设计了一种基于TCP的简单但可行的适用于城域P2P流媒体直播系统的NAT穿越方法。最后经测试,该方法穿越常见的NAT设备的成功率达到60%以上,达到设计目的。
The lack of IPv4 addresses and the enhancement of network security requirement result in wide use of NAT （ Network Address Translation） devices. Different NAT has different behaviour when they treat the packet inbound or outbound. There are no common and perfect ways in NAT traversal of basic TCP protocol in recent years. In this paper,we try to give a TCP-based ameliorative,simple but doable NAT traversal method which fits the metropolitan P2P streaming media live broadcasting system,the method is devised based on our investigation and research on NAT’s behaviour. At last we test the method by traversing some familiar NAT devices with over 60% success rate,the designing aim achieved.
出处
《计算机应用与软件》
CSCD
2010年第12期61-63,共3页
Computer Applications and Software
基金
上海市科委2005年信息技术攻关项目(055115009)
