摘要： 提出一种基于Libpcap函数调用实现NAT的设计思想，并分别对Libpcap 和NAT的工作原理作简要说明，最后在此基础上简述NAT网关的设计。

关键词: Libpcap, NAT, 网关

Abstract: This article proposes a design idea of impl emeting NAT technique based on Libpcap, and makes simple analysis for the NAT and Libpcap, and designs NAT gateway in the end.

中图分类号: 

• TP393.05