IPv4与IPv6共存技术的简介

Brief Introduction of IPv4/IPv6 Coexistence Technologies

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。

This article describes first the IPv6 technology and the development of network based on IPv6. Based on analysis of the network development in China, it discusses the three common coexistence technologies of IPv4/IPv6, then gives indetail the configuration and implementation of the above coexistence technologies, including characters of the three technologies in the enhanced enterprise network based on IPv6. Finally it concludes that, it is necessary to combine different scences and demands, adopt appropriate coexistence technology, and make stable strategy of network evolution, and thus the Ipv6 technology could become more reliable and mature.