OPENVPN源代码，功能强大，在数据链路层做的

一个 ip过滤源代码的c++工程，可以看作简单的防火墙，希望对大家有帮助-an ip filter source code c works can be seen as a simple firewall, and I hope to be helpful

费尔防火墙源码以及安装文件，不错，推荐一下给站长-Fairbanks firewall source code and installation file, it is true that you recommend to the head

Neo防火墙,不是很好，学习学习也不错。-Neo firewall is not very good, learn from is a good one.

用汇编编写程序，任意输入两个数进行四则运算。要求从键盘输入数据和运算符，并把运算的结果显示在屏幕上。 你好-used to prepare the compilation process, arbitrary number of input 2 for 4 operator. Requests from the keyboard data entry and Operators, and the results of operations on the screen. Hello

我们自己的作品，希望可以在大家的帮且慢下有进一步的提高，也能为计算机的软件事业，作一点应有的贡献．-our own works, I can help you in a minute under the further improvement, but also to computer software, should make a contribution.

对防火墙进行控制的代理程序-right firewall for control agent

An Adventure How to implement a Firewall-Hook Driver

MODEM 调 制解调器开发的C 语言源程序.欢迎大家下载-MODEM modem developed by C language source code. Welcome everyone to download

一段网络监控程序的源码,里面有说细的注释-network monitoring procedures for the source, and they said fine Notes

P2P软件，它是在JAVA的基础上完成的，而且可以实现数字签名功能。-P2P software, which is based on Java completed, and can achieve digital signatures.