2、前过渡期间的访问技术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 aninevitab
3、le trend,forcing in the 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 initi
4、al technology, IPv6 networks arein theexperimentalstage.The current network technology the IPv6 marine certain IPv6network only scattered all islands. IPv6 accessto IPv4 network atthisstage needs,technologyresearchandimproveaccess duringthetransitionperiod hasbecom
5、enecessary.Thispaperanalyzestheinevitabilityandnecessityof the newnetwork protocol IPv6 andIPv6 newfeatures and newtechnology todo a simple introduction. DiscussedthetransitionphasetheIPv6visitIPv4used avarietyoftransition, in avarietyoftechnicalbasisforcomparison
6、above, putforward theirviews.Finally, the practice of 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52.3.1I
