UPnP基本原理以及在NAT中的应用

在互联网应用越来越丰富的情况下,设备之间如何通过UPn P方案实现互联互通显得日益重要,本文介绍了UPn P所定义的基本协议（如SSDP、GENA、SOAP等）,重点分析了UPn P实现的基本工作流程,并通过抓包工具捕获数据包,对各种流程传递的协议报文进行详尽分析,最后结合NAT技术,重点叙述UPn P在NAT技术中的应用。通过本文能够加深认识设备之间互联互通的一种方案。

The basic principle of UPnP and application in NAT

In the Internet applications become more and more abundant conditions,equipment between how to pass the UPn P scheme to realize interconnection becomes more and more important,this paper introduces the basic protocols of the definition of UPn P（such as SSDP,GENA,SOAP etc.）,focus on the analysis of the UPn P to achieve the basic work flow,and through the capture tool packet capture,detailed analysis of a variety of flow transfer protocol message,finally combining with NAT technology,focusing on the application of UPn P in NAT technology.Through this paper can deepen understanding of a scheme of interconnection between devices.