This tutorial is intended to supply enough information to set up a relatively simple WAN or Internet-connected LAN using WANPIPE™ router cards or other routers. Explanations of IP addresses, classes, netmasks, subnetting, and routing are pro

libdnet 为若干个低层的网络例程提供了一个简单易懂的可移植的接口，包含网络地址处理，内核arp 缓冲与路由表查找与管理，网络防火墙（IP filter， ipfw， ipchains，， pf， PkktFilter， ...)，网络接口查找与管理，IP 隧道（BSD/Linux tun， Universal TUN/TAP device)，未加工的IP 包与以太网帧的传输。 -the libdnet as a number of low-level network routines

socket编程，一个简单的静态路由机制，在linux中运行，含源代码、配置文件。-socket programming, a simple static routing mechanism, running in linux, including source code, configuration files.

The BIRD project aims to develop a dynamic IP routing daemon with full support of all modern routing protocols, easy to use configuration interface and powerful route filtering language, primarily targeted on (but not limited to) Linux and other U