802.1x Network Authentication Protocol Technology Research

Due to the popularity of the scale of the expansion of the campus network of theInternet has also been a growing development, growing its function development, thecampus network has become an important foundation for colleges and universities tocarry out teaching and research activities, is also a measure of the Higher EducationInformationan important indicator of the building. However, with the rapid developmentof the campus network, the user is growing and widely used in various applicationsystems, campus network security problem has become one of the important factors ofdevelopment constraints Higher Education Information. Therefore, how to campusnetwork user authentication and billing management has become an urgent problem ofthe development of the Campus Network.Due to the scale of the expansion of the campus network of the popularity of theInternet has also been a growing development, the development of its functions. The ofhigh campus network construction experience, the campus network problems withoutreasonable management model, the lack of flexibility of the billing strategy can notguarantee the security and stability of the network. Although the development of thenetwork so that the people’s work and life become more relaxed, however, did notmanage the network it is impossible to reach its proper function. Therefore, networkauthentication and billing system which was bornThis thesis in-depth analysis of the current network authentication security issuesand theoretical basis, on the basis of the agreement, the PPPoE access authenticationtechnology, Web access authentication,802.1x access authentication technology threeauthentication technology,the key technology for authentication and accounting system,analysis of the three modes of the campus network user authentication system, on thebasis of the existing network hardware, the design and development of systems analysis,conducted on the campus network user authentication system based on the802.1xprotocol. The system uses a huge advantage in terms of access control and flow controlof access equipment, based on the LAMP open source integrated developmentenvironment, to configure freeradius service within the campus network management and billing management of user access authentication.This paperis a security accesscontrol scheme based on802.1x, EAP, and RADIUS protocol works, the network accesslayer, the access network user validation. For research background, combined with thesecurity features of the MD5algorithm, designed a certification model; With802.1xprotocol EAP protocol and RADIUS protocols, implementation of the designcertification model. This certification system, you can access network user identityauthentication, only authenticated users can access network resources, does not meet therequirements of the user can not be authenticated, and therefore can not use the networkresources。It can realize Web access authentication and accounting management tocampus network users, solve the problem of the management of campus network userseffectively, and achieve the goal of”network support of network”.