网络数据帧的截获与监听-Network data frame capture and monitor

原始套接字的简单实例。 raw socket，即原始套接字，可以接收本机网卡上的数据帧或者数据包,对与监听网络的流量和分析是很有作用的-Simple examples of the original socket. raw socket, that is, the original socket, you can receive the card on the machine frame data or data packets to and monitor network tra