Research And Implementation On The Campus Network Based On IPv6Technology

Recently, with the rapid development of the network technology, Internet iswidely used in all areas of society. In each respective field, it is now playing anincomparable role. IP protocol was born in the mid-1970s as an effective solution tothe network interconnection and computer communication. Currently, IPv4(the fourthversion of the IP protocol, connecting the main engines of all kinds of variousnetworks and playing a key role for the Internet’s global development) is pervasivelyapplied to the realization of the interconnection of the main-stream networks in theworld. But with the continuous development of the Internet and the emergence ofmore and more connected nodes, IP addresses tend to be severely imbalanced betweenthe supply and the demand. The lack of IP addresses has set up a serious restriction tothe Internet development. Due to the entrance of multimedia data flow and withregard to the performance and security as well as other related aspects, IPv4is faraway beyond these new requirments. Therefore, the IETF strongly recommends IPv6as the next-generation Internet protocol. For the phenomenon mentioned above, theresearch and applications of IPv6are obviously irresistible.As an important component of the Internet, campus network has made significantcontributions to the research and development and the applications of Internet.However, a series of haunting problems in all kinds of forms in campus networkremain as the obstacles for the network management all along the way. In this sense,it is indeed necessary and practical to begin the research of IPv6for the nextgeneration campus network.My dissertation develops as follows. Firstly, by contrasting the features andperformance of Ipv6and that of Ipv4, we can clearly see the former has much moreadvantages over the latter. Afterwards, I make an in-depth discussion about thetransitional techniques from IPv4to IPv6. Based on IPv6network, the topology of acertain university campus network can be feasibly deployed. Concretely speaking, thedynamic IP routing mechanism OSPFv6can be realized among BD6808s of the corelayer and the convergence layer respectively. Then, I can configure the IPv6/IPv4tunnel based on Tunnel technique among core layer BD and adopt IPv6/IPv4dualstack network technique in the internal campus network. BD6808s are used on corelayer and convergence layer to accomplish IPv6dual stack function and tunnel function. Meanwhile Summit48i is used on access layer to support the IPv6/IPv4dualstack technique comprehensively. The IPv6/IPv4dual stack DNS servers and FTPservers are deployed on core layer to meet the requirements for users to visitIPv6/IPv4network resources and the future demand for long-distance learning.