声明一个原始套接字，设置套接字选项，将本地IP和端口绑定到该套接字，使用WSAIoctl设置SIO_RCVALL 接收所有的数据包，启动一个死循环来不断分析接收到的数据包-a statement original socket, set socket options to the local IP and port binding to the socket, use WSAIoctl SIO_RCVALL set up to receive all the data packets, star

A basic exemple on how-to use "Winsock2" with Visual-C++ 6 to sniff the network without Winpcap. Also you can see how is the implementation of "WSAIoctl()" with the SDK2003. In this code, we analyse the TCP trame and show information about the ip h