SIP和IPv6混合网络桥接技术研究

Research of Network Bridging Technology Based on the SIP and IPv6

由于IPv4网络协议与IPv6协议是两个相对独立不兼容的协议,因此即使新的设备开始支持IPv6协议后也只能是实现IPv6网络内的通信,无法实现SIP终端之间直接进行IPv4网络与IPv6网络间的会话通信。为了实现IPv4网络和IPv6网络之间的SIP通信的目标,研究SIP通信桥接服务系统的整体框架,根据系统需要实现的功能,将系统分成对SIP协议通信模块、RTP流转发模块、IPv4/IPv6网络通信模块、核心控制模块、负载均衡模块,对几个模块进行分别设计。最后是整个SIP桥接服务器的运行效果演示,主要是针对RTP流数据的抓包演示,证明了该系统完成了将RTP流数据从IPv4网络转发到了IPv6网络中的目标。

As IPv4 network protocol and the IPv6 network protocol are relatively independent and incompatible , even if the new equipment supports the IPv6 protocol, they can only communicate with each other within the IPv6 network and cannot directly talk to other SIP endpoints in IPv4 network. Moreover, most of the equipments in the world currently only support IPv4 protocol. In this paper, in order to achieve SIP communication between the IPv4 network and IPv6 network , we research the SIP communication bridge service system of the whole framework and the relatively independent function modules. Finally the running effect of the SIP bridge server demo is shown, mainly for RTP stream data caught demonstration, that the system has a completed RTP stream data, from IPv4 network forwarding to the IPv6 network.