NAT与防火墙穿透技术研究

Research on NAT & Firewall Traversal Techniques

局域网中的防火墙技术和NAT转换机制一方面保护着网络的安全,另一方面也制约着具有广泛前景的P2P通信及多媒体技术应用的发展。为了解决两者之间的矛盾,研究人员在NAT转换与防火墙穿透技术上做了大量的工作。本文对目前已有的基本技术进行了归纳分类,并对它们通信过程、应用的网络背景及未来的发展趋势进行了分析研究。

The fire, vail and NAT （Network Address Translation） block the popular application of P2P communication and multimedia technology while they guarantee the safety of the local area network. Much research has been conducted on NAT and firewall traversal to dissolve this dilemma. In this paper, the classification and summary of the primary NAT ＆ firewall traversal techniques up - to - date are presented, and their communication process, application background of the network, and trend are discussed and analyzed.