熟悉并掌握Linux环境下数据包捕获开发包Libcap的使用方法。能够熟练应用Libcap开发包中的函数完成网络环境下功能较为简单的网络捕获包和分析程序。通过实验加深对通信协议的理解，熟悉每个Libcap包中函数的功能以及调用方法。-Familiar with and master the packet capture under Linux Development Kit Libcap is used. Experience with the development package Libcap function function complete the network environment is more simple network packet capture and analysis procedures. Experiments to enhance understanding of communication protocols, familiar with each Libcap package of functionality and call the method.