本课题主要研究的是对局域网的数据包获取和分析，采用WINSOCK技术实现的。在此工具中主要有数据包的监听获取和IP数据包分析2大主要功能，并能通过窗体清楚的显示出来。它使人们可以每时每刻观察到进入自己电脑的数据包，并能够观察到进行数据交流时对方的IP地址和所开放的端口号，及时对信息明朗化，预防黑客端口的监听。-The main research topic is the LAN data acquisition and analysis

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