摘要
基于SIP协议构建的网络如智能家居在进行私网和公网间通信时,由于SIP协议由于本身具有的特点,导致了基于SIP构建的私网穿透NAT/FW的难题。通过分析SIP协议特点,本文提出利用“应用层网关(ALG)”方法来实现SIP网络穿透NAT/FW,文中详细的介绍了SIP应用层网关的原理和实现方法,并利用SIP应用层网关技术实现SIP对NAT/Firewall的穿越。
It＇ s hard for the network based on SIP like digtal home network to pass NAT/FireWall, this paper has analyze the characteristic of SIP, it＇ s give the method ＂Application Layer Gateway （ALG）＂ based on SIP to pass NAT/Firewall. This paper discussing and analyzing the ALG. and accomplish it at last.
出处
《电子与电脑》
2007年第3期94-97,共4页
Compotech
