Analysis And Framework For Campus Network Security System

Since the campus network development is so rapid, it has good effect on upgrading OA level, accelerating information transaction and increasing work efficiency. It also helps to use the better education resource and to share them. More and more abundance application of campus network is used, the complex problems of security can be threatened to the computer network system. The problem of campus network security turns to the importance task for us to solve. The new requirement of security establishment of campus network appears to us.The paper analyses the meaning of network security firstly. It introduces the emergence of network security problem then particularly analyses the status of security and elements of threatening the network security. These provide the reference to the campus network security system construction. The paper then introduces the technique of virus defense, ARP defraud defense, VPN and IDS, data backup, and disaster recover. Lastly the paper makes a conclusion for achieving campus network security system based on the practice in the Dalian Education Academy.The clue of paper is according to access layer—core layer—distribute layer—user access layer. Based on the designation of Dalian Education Academy's topology, it arranges the security ploy of different layer. The precondition of implement campus network security management is to establish the healthy management system. In the paper, the writer describes from border router—firewall—core router—distribute switch—user access in sequence to arrange the security ploy. It bases on designing the border router of network, then adopting FW technique as guarantee of campus network security to arrange the security ploy on the core switch and distribute switch, and strengthen the user access limit management. In the final of the paper, the writer makes the summery of campus network security system and looks into the future.