中文摘要：

由于IPv4过渡到IPv6需要经历一段相当长的时间，因此，必须研究一种适合于Intranet（企业内部网）的IPv6过渡策略，以保证IPv4网络与IPv6网络的正常通信。在几种常用的过渡技术基础上．采用了以Netfiher为框架的扩展模块形式配合使用Xtables-addons捕件。快速高效地实现了IVI机制的方案，然后对该方案中的IVI匹配模块与IVI目标模块进行工具体实现与详细分析，并将其应用于真实网络中进行测试。IVI翻译机制能有效地解决IPvg主机与IPv6主机相互通信的问题．为广泛部署Intranet过渡网络提供实际应用参考。

英文摘要：

The transition of IPv4 to IPv6 needs to experience a long period of time. Therefore, a suitable IPv6 transition strategy for the intranet must be researched to ensure the normal communication between IPv4 network and IPv6 network. On the basis of several common transition technologies, this paper uses Netfiher expansion module in conjunction with Xtables-addons plug-ins, in order to achieve the program of the IVI mechanism quickly and efficiently. Then a detailed analysis to the concrete realization of the IVI matching module and IVI object module in this program is given. And it is applied to the test in a real network. IVI translation mechanism can effectively solve the communicate problem between IPv4 host and IPv6 host. It provides practical application reference to deployed intranet transition network widely.