基于LINUX的路由型防火墙的实现

Implementation of the Firewall and Router Based on Linux

路由器是连接多个网段的具有多个网络接口的一个网络节点.一般的商用路由器均实现了一定的防火墙功能.路由器除了可以是一个专用的商业路由器之外,也可以是具有多个网络接口的具有路由功能的一台计算机.本文在Linux系统上用IPFWADM实现了一个路由器型的防火墙.

Router is a network unit with multiple network interfaces and it can interconnect different networks.Ordinary commercial routers have the function of a firewall.The router are more than a special commercial routers,it can be a computer which has some network interfaces with the function of routing.This paper introduces a router and a firewall on Linux system using IPFWADM.