基于NAT64的IPv4到IPv6过渡方案的设计与实现
发布时间：2018-11-05 08:37
【摘要】：从当今世界互联网的发展情况来看,IPv6毋庸置疑会是将来互联网的主流趋势。虽然IPv6克服了IPv4的诸多弊端,但现如今大部分电子产品及服务设备中IPv4还是主流技术,所以从IPv4到IPv6的过渡不能一蹴而就,需要循序渐进。因此,各种过渡技术应运而生,如双协议栈技术、隧道技术和协议翻译技术。NAT64技术正是在这种背景下产生的,本文研究了基于NAT64的IPv4到IPv6过渡技术方案的设计与实现,主要工作如下： 首先介绍了IPv6协议的发展背景,分析了目前主流的IPv4到IPv6过渡技术,包括双协议栈技术、隧道技术和协议翻译技术,并对各技术优缺点进行了详细的对比。 其次分析了NAT64和DNS64技术原理和设计要求,在此基础上,给出了过渡技术方案的总体框架设计,并进行了子模块划分,包括翻译模块(分别为TCP、UDP和ICMP)、表项管理模块、表项超时模块和配置管理模块。进而论述了NAT64控制流和数据流的设计以及相关的关键数据结构。在LINUX操作系统下,给出了基于NAT64过渡技术方案的详细设计与实现,详细介绍了各个子模块的设计与实现。 最后对NAT64过渡方案进行了部署和测试,包括命令行测试(如NAT64前缀配置命令、地址池配置命令及表项超时配置命令),功能测试(如地址协议翻译功能、表项超时功能)等,并搭建实验环境对已经实现的各个功能模块进行测试,对具体的实施结果进行了分析,结果表明本方案达到了预期的设计要求。 本文分析了IPv6的优点以及国内外IPv6实现的现状,针对目前IPv4到IPv6的主流过渡技术进行了分析,并总结出各自的优缺点及适用的网络。针对NAT64过渡方案进行了设计和实现,达到了IPv6网络客户端与IPv4网络服务器通信的目的。
[Abstract]:Judging from the development of the Internet in the world today, IPv6 will undoubtedly be the mainstream trend of the Internet in the future. Although IPv6 overcomes many disadvantages of IPv4, nowadays IPv4 is still the mainstream technology in most electronic products and service devices, so the transition from IPv4 to IPv6 cannot be accomplished overnight. Therefore, a variety of transition technologies emerge as the times require, such as dual-protocol stack technology, tunnel technology and protocol translation technology. NAT64 technology is produced under this background. This paper studies the design and implementation of IPv4 to IPv6 transition technology based on NAT64. The main work is as follows: firstly, the development background of IPv6 protocol is introduced, and the current mainstream technology of transition from IPv4 to IPv6 is analyzed, including dual-protocol stack technology, tunnel technology and protocol translation technology. The advantages and disadvantages of each technology are compared in detail. Secondly, the technical principle and design requirements of NAT64 and DNS64 are analyzed. On the basis of this, the overall framework design of the transition technology scheme is given, and the sub-modules are divided into three modules, including translation module (TCP,UDP and ICMP), table item management module). Table item timeout module and configuration management module. Furthermore, the design and key data structure of NAT64 control flow and data stream are discussed. Based on the LINUX operating system, the design and implementation of the transition technology scheme based on NAT64 are presented, and the design and implementation of each sub-module are introduced in detail. Finally, NAT64 transition scheme is deployed and tested, including command-line test (such as NAT64 prefix configuration command, address pool configuration command and table item timeout configuration command), function test (such as address protocol translation function, table item timeout function), etc. The experimental environment is set up to test the functional modules that have been implemented, and the concrete implementation results are analyzed. The results show that this scheme meets the expected design requirements. This paper analyzes the advantages of IPv6 and the status quo of IPv6 implementation at home and abroad, analyzes the mainstream transition technology from IPv4 to IPv6, and summarizes their advantages and disadvantages as well as applicable networks. The NAT64 transition scheme is designed and implemented to achieve the purpose of communication between IPv6 network client and IPv4 network server.
【学位授予单位】：中国科学院大学（工程管理与信息技术学院）
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP393.04
本文编号：2311527
[Abstract]:Judging from the development of the Internet in the world today, IPv6 will undoubtedly be the mainstream trend of the Internet in the future. Although IPv6 overcomes many disadvantages of IPv4, nowadays IPv4 is still the mainstream technology in most electronic products and service devices, so the transition from IPv4 to IPv6 cannot be accomplished overnight. Therefore, a variety of transition technologies emerge as the times require, such as dual-protocol stack technology, tunnel technology and protocol translation technology. NAT64 technology is produced under this background. This paper studies the design and implementation of IPv4 to IPv6 transition technology based on NAT64. The main work is as follows: firstly, the development background of IPv6 protocol is introduced, and the current mainstream technology of transition from IPv4 to IPv6 is analyzed, including dual-protocol stack technology, tunnel technology and protocol translation technology. The advantages and disadvantages of each technology are compared in detail. Secondly, the technical principle and design requirements of NAT64 and DNS64 are analyzed. On the basis of this, the overall framework design of the transition technology scheme is given, and the sub-modules are divided into three modules, including translation module (TCP,UDP and ICMP), table item management module). Table item timeout module and configuration management module. Furthermore, the design and key data structure of NAT64 control flow and data stream are discussed. Based on the LINUX operating system, the design and implementation of the transition technology scheme based on NAT64 are presented, and the design and implementation of each sub-module are introduced in detail. Finally, NAT64 transition scheme is deployed and tested, including command-line test (such as NAT64 prefix configuration command, address pool configuration command and table item timeout configuration command), function test (such as address protocol translation function, table item timeout function), etc. The experimental environment is set up to test the functional modules that have been implemented, and the concrete implementation results are analyzed. The results show that this scheme meets the expected design requirements. This paper analyzes the advantages of IPv6 and the status quo of IPv6 implementation at home and abroad, analyzes the mainstream transition technology from IPv4 to IPv6, and summarizes their advantages and disadvantages as well as applicable networks. The NAT64 transition scheme is designed and implemented to achieve the purpose of communication between IPv6 network client and IPv4 network server.
【学位授予单位】：中国科学院大学（工程管理与信息技术学院）
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP393.04
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