Research on Security Issues Based on CAN LAN

With the rapid expansion of the rapid development of computer network technology and network coverage, network security issues are increasingly complex and outstanding looks up.In this paper, we have the analysis of the CAN security situation, put forward the principle of network security policy-making process to be followed, clearly a number of network security policy are also pointed out to build a more complete network security solution ideas.For the current CAN security issues, we discuss the principles and methods of the CAN network design process involved in the security system, and propose specific means for the CAN technology features.Meanwhile, we have researched and explored the characteristics and design of school network management, combined with the existence of the local area network insecurity, indicated security needs of the network, and to developed appropriate the security policy of network.