Design And Scheme Of Campus Network Monitoring System

With the progress of the times, the Internet has been widely into all walks of life andevery family, spread to every corner of our life, affects our life. at the same time,In the fullenjoyment of the convenience of Internet, the importance of network security have been moreand more people deeply aware of.In particular, the use of intensive in the campus network inthis environment, viruses, malicious attacks, tampered with, illegal access to information willhave a significant impact on the network, causing huge losses to the user. The solution methodfor the integrated application of a variety of Network Defense Technology in network securitymanagement, use the network monitor system is one of the effective methods. It is through theanalysis of the data packet flow, real-time collection and monitoring network data packetinformation, used to judge whether the existence of network anomaly.This paper first introduced the network traffic detection history and the domestic andforeign research status, network measurement technology and method, then introduces how tolink layer packets to capture and analysis, and introduces the realization of this technologyWinPcap structure, including WinPcap composition, NPF structure, WinPcap main libraryfunction and basic WinPcap packet capture program examples. Based on the current nationalnormal university in southern guizhou campus network facilities as the foundation,toreconstruct flow monitoring for the purpose of campus network, the detailed design and vbscript in asp and Java script can achieve the whole campus network may call flow monitoringsystem of data collection, data analysis,database operation, each functional modules, whichexplains in detail the data acquisition module and data processing module, mainly includingbased on WinPcap packet capture and packet analysis method,the related agreement,processes, data structure,and coding realized.