防火墙的远代码。它能实现对数据的过滤，能检测出局域网的网络IP地址。能够防止别的计算机ping本机。-firewall code. It can achieve the filtering of data, can detect LAN network IP addresses. To prevent other computer ping the machine.

IP伪装程序，可以作为内部局域网上网的网关。使用到了WPCapSrc-IP camouflage procedures, can be used as the internal LAN access to the Internet gateway. The use of the WPCapSrc

局域网数据包抓取演示程序。用C++编写。用到局域网中TCP/IP中的多播和广播协议。适合新手学习时参考demo。-LAN packet capture demonstration program. Written with C++. Multicast and broadcast protocol used in TCP/IP LAN. Reference for novice learning demo.