众所周知，ethereal可以捕捉网络数据包，本程序代码可以将 ethereal包进行拆分，还原里面的协议头部以及数据，进行各种相应的应用-As we all know, ethereal can capture network packets, the program code can be split ethereal packets, which the agreement to restore the head, as well as data, conducting a variety of the corresponding application