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首先介绍了IPv6技术及IPv6网络的演进过程。在分析了中国IPv6网络发展程度之后,介绍了三种过渡时期常用的IPv4/IPv6共存技术,包括双栈技术、隧道技术和网络地址转换—协议转换(NAT-PT,Network Translation-Protocol Translation)技术。通过新增IPv6企业网络实例,具体配置并实现了以上几种共存技术,并指出了各种技术的优缺点及适用情况。最后指出应结合不同场景和需求采用适当的共存技术,制定平稳的网络演进策略才能使IPv6技术更加稳定、成熟。
First introduced the evolution of IPv6 technology and IPv6 network. After analyzing the development of China’s IPv6 network, this paper introduces three common IPv4 / IPv6 coexistence technologies in the transition period, including dual-stack technology, tunneling technology and Network Translation-Protocol Translation (NAT-PT) . By adding IPv6 enterprise network instances, several specific coexistence technologies are configured and implemented, and the advantages, disadvantages and applicability of various technologies are pointed out. Finally, it is pointed out that the appropriate coexistence technology should be adopted in combination with different scenarios and needs, and a stable strategy of network evolution can be made to make IPv6 technology more stable and mature.