很好的防火墙框架自动生成程序代码，可以自动生成，省略更多麻烦...

简易防火墙程序. 简易防火墙程序.-Simple firewall program. Simple firewall program.

一步 的,慢慢学,你就可以成为一名入门的红课,大家加油啊,努力学习!-it will tell you how to be a rudimental hacker ,if you read and learn step by step.Come on

NDIS的PASSTHRU层的驱动程序，MySource应用层的程序，负责向驱动程序发指令，本来是想做防火墙的，可后来做到可过滤IP地址后没有再做了

ibdnet为几个低级网络例程提供了一个简化的接口在，包括网络地址处理，内核arp(4) 和 route(4)表处理，防火墙，接口配置，以及原始以太网和IP数据包传输。-ibdnet network of several low-level routines to provide a simplified interface, including network addresses, core arp (4) and route (4) Table processing, firewall, port configuration, and the original Ethernet and IP packet transmission.

防火墙编程之封包过滤 代码(内附说明) 希望能通过申请!我为人人,人人为我!-firewall packet filtering code (with description) want to be able to apply! I for everyone, everyone!

该程序是实现一个小型的防火墙的设计。是基于包过滤技术的实现。-the program is a small firewall design. Is based on packet filtering technology.

一个通过icmp包实现通信的小工具，里面详细介绍了，学习网络协议的好东西。

Windows Firewall Ports & Applications Manager -Windows Firewall Ports & Applications Manager

不错的包过滤防火墙代码-good packet filtering firewall code

IPFilter,顾名思义,乃为IP过滤之意思.读懂并集成到你的应用中,应该很有意思-IPFilter, as its name implies, is for the meaning of IP filtering. Understood and integrated into your applications, should be very interesting