sniffer 网络嗅探器，对使用的协议，源地址，端口，目的地址，大小，数据等信息进行获取-network sniffer .it can obtain the information ,such as protocol, source address, port, destination address, size of packet , data and so on .

VC++编程实现网络嗅探器 sniffer 的源代码-The network sniffer sniffer VC++ programming source code