| 摘 要: 本文对IPV4、IPV6和IPV9的特点进行了概述,并在地址空间、地址管理、地址表示、安全性、域名服务、 QoS、应用范围，以及发展趋势等方面，对三者进行比较研究，分析其优势与劣势。不管从IPV4演进到IPV6还是推进到 IPV9，都要基于IPV4的成熟服务，支持协议的兼容性。IPV6是发展趋势，相信IPV9也能为网络安全做出贡献。 |
| 关键词: IPV4；IPV6；IPV9；标准；IETF |
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中图分类号: TP393
文献标识码: A
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| Comparative Study of IPv4,IPv6 and IPv9 |
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HE Jinsong，PENG Zhichao，HE Wenhua，JIANG Xuejun1,2,3
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1.( 1.School of Science and Technology, Hunan University, Changsha 410012, China;2.
2.School of Information, Hunan University of Humanities, Science & Technology, Loudi 417000, China;3.
3.School of Science and Technology, Tianjin University, Tianjin 300192, China)
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| Abstract: The characteristics of IPV4,IPV6 and IPV9 are outlined in the paper.The advantages and disadvantages of these 3 protocols are analyzed by comparing their address space,address management,address representation,security,domain name service,QoS,application scopes and development trends.Regardless of the evolution from IPV4 to IPV6 or the advance to IPV9,it should be based on IPV4's mature service and the protocol compatibility.As IPV6 is the development trend,IPV9 can also contribute to network security as well. |
| Keywords: IPV 4;IPV 6;IPV 9;standard;IETF |
