2、的研究和完善则成为必需。本文分析了新的网络协议IPv6出现的必然性及必要性，并对IPv6的新特性与新技术做了简单的介绍。讨论了过渡阶段IPv6访问IPv4所采用的多种过渡技术，在对各种技术进行比较的基础之上，提出了自己的见解。最后对某些技术的实践进行了实践测试。关键字：IPv6隧道技术双协议栈NAT-PTAbstractNow, theIPv4 addressresources have been nearlydepleted, theIPv4 toIPv6 transitionis aninevitable trend,forcing in t
3、he deployment of next-generationInternet, hadtobe howtomake IPv4 to IPv6 smoothtransition into consideration. Several morematureIPv4/IPv6conversiontechnology, the moremature ofNAT-PT,tunnels, and dual-stacktechnology. Butthese arejust the initial technology, IPv6 networks are
4、in theexperimentalstage.The current network technology the IPv6 marine certain IPv6network only scattered all islands. IPv6 accessto IPv4 network atthisstage needs,technologyresearchandimproveaccess duringthetransitionperiod hasbecomenecessary.Thispaperanalyzestheinevitabilit
5、yandnecessityof the newnetwork protocol IPv6 andIPv6 newfeatures and newtechnology todo a simple introduction. DiscussedthetransitionphasetheIPv6visitIPv4used avarietyoftransition, in avarietyoftechnicalbasisforcomparison above, putforward theirviews.Finally, the practice of
6、certaintechnical practice test.Keywords:IPv6TunnelTechnologydual-stackNAT-PT目录摘要IIIAbstractIV第一章绪论11.1论文课题研究的目的与意义11.2IPv6技术国内外的发展现状2第二章IPv6协议研究32.1IPv6协议基础32.1.1IPv6协议基础介绍32.1.2专业术语32.2IPv6的报头结构42.3IPv6地址52.3.1IPv6地址的类型52.3.2IPv6地址格式62.3.3寻址模型72.3.4IPv6地址分配8第三章IPv4与IPv6网络之间的
