模拟tcp协议的三次握手 mfc

使用winpcap开发；

在多线程同步方面有些小问题；

windows xp sp2以上的系统不能发送原始的tcp数据包，并且在收到tcp的syn包后，会自动回复一个rst包，故不能建立连接，所以使用winpcap开发，并且还写了个简易的防火墙，过滤掉了系统自己发出的rst包。-Simulated three-way handshake protocol tcp　mfc using winpcap development　in a multi-thread synchronization aspects of some small problems　windows xp sp2 and above the original system can not send tcp packet and the receipt of tcp syn packets, it will automatically reply to a rst package, it can not establish a connection, so use winpcap development, and also wrote a simple firewall to filter out the system its rst packet sent.