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一、IPv6的产生 现在的Internet网络层协议是IPv4,IPv4在Internet中运行得比较成功,但存在地址空间有限、安全性路由选择效率不高、服务质量缺乏保证、移动性支持不强等缺陷,为克服IPv4的这些不足,IETF下一代网络协议(IPng)作组于1994年9月提出The Recommendation for the IP NextGeneration Protocol草案,并在1995年底确定了IPng协议规范,称为IP版本6(即IPv6),1996年IPv6的基本协议规范发表,1998年发表了IPv6修订版。
I. Generation of IPv6 Now that the Internet protocol at the Internet layer is IPv4, IPv4 runs more successfully in the Internet. However, it has some limitations such as limited address space, inefficient route selection, poor quality of service, poor mobility support, In order to overcome these deficiencies of IPv4, the IETF Next Generation Network Protocol (IPng) made a draft of the Recommendation for the IP NextGeneration Protocol in September 1994 and finalized the IPng protocol specification at the end of 1995 called IP version 6 (ie, IPv6 ), The 1996 IPv6 Protocols specification was published and an IPv6 revision was released in 1998.