费尔防火墙源码以及安装文件，不错，推荐一下给站长

这是一个简单的路由跟踪工具，通过发送UDP包，使初始TTL值为一，即发送到第一个节点时终止，返回，之后再将TTL值++，收集每个返回的ICMP信息即可得到封包经过的路由。-This is a simple routing tracking tool, by sending a UDP packet, so that the initial TTL value of 1, that is sent to the first node the termination, return, and then after the TTL value of++, The collection of each returned ICMP Information can be obtained after the routing packets.

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.

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.

关于防火墙知识的文章,对于想要学习防火墙技术的人来说,真的是不错的东西-Knowledge of the article on the firewall, the firewall technology want to learn who really is a good thing

一个简单的网络防火墙的源代码-A simple network firewall source code

本人花重金购买的防火墙源程序-I spent huge sums of money to buy the source firewall

简单个人防火墙 可拦截IP包-simple personal firewall to intercept IP packets

windows下的防火墙，支持对协议，源/目的端口的过滤。可以设置阻止列表。-under the windows firewall, support for the agreement, the source/destination port of the filter. The list can be set to stop.

NetBSD和FreeBSD上实现的IKEv1协议，支持共享密钥、证书，支持主模式、野蛮模式和快速模式等-NetBSD and FreeBSD achieve IKEv1 agreement, support shared keys, certificates, support the main mode of barbaric and fast mode mode

Winsock分层服务提供程序示例，包在文档中描述