VOIP和网络通信中使用ETUN、TURN和CIE穿越NAT防火墙

网络包捕获分析工具-A network packets capture and analysis tool

防火墙提供了内核模式的防火墙和 NAT 机制，这些机制可以通过用户模式运行的接口程序进行监视和控制。 防火墙规则可以使用 ipf(8) 工具来动态地设置和删除。 NAT 规则可以通过 ipnat(1) 工具来维护。 ipfstat(8) 工具则可以用来显示 IPFILTER 内核部分的统计数据。 最后， 使用 ipmon(8) 程序可以把 IPFILTER 的动作记录到系统日志文件中。 -Firewall provides a kernel-mode firewall and NAT mechanisms, these mechanisms can be run through the user-mode interface program to conduct surveillance and control. Firewall rules can use the ipf (8) tools to dynamically set up and delete. NAT rules can be adopted ipnat (1) tools to maintain. ipfstat (8) tools can be used to show the core part of IPFILTER statistics. Finally, the use of ipmon (8) program can record the movements IPFILTER to the system log file.

这是一个使用VC开发的简单的防火墙软件，很适合初学者学习-This is a development of the VC using simple firewall software is well-suited to beginners learning

传输层的防火墙源码vc开发，编译通过可运行！-Transport layer firewall vc source development, the compiler can be run through!

打造自己的驱动防火墙.搞安全的人用得着的,大家看看吧.-Create its own firewall driver. Engage in security of the useful, let us look at it.

The doorman guards the door of a server, manipulating firewall rules to admit only recognized parties

防火墙安装-install firewall

可以穿越防火墙的语音-to pass through the firewall"s voice

一个防火墙的源码，比较适合学习包过滤-a firewall source code, the more appropriate learning packet filtering

数据包过滤防火墙-packet filtering firewall