可以列出当前系统支持的网络设备，分析ARP协议包，将设备设置到promisc模式，分析ARP协议包，打印更多数据、采用表格方式输出-can summarize the current system to support the network equipment, ARP packet analysis, the equipment installed to promisc model analysis ARP packets, print more data, tabular output m

caret包可以对数据进行预处理、建模，比较等分析。-Caret package can be the data preprocessing, modeling, comparison, and so on.