本文详细描述了嵌入式防火墙的由来,以及嵌入式防火墙的原理与设计结构。分布式防火墙将传统防火墙分散移植到各个终端来防止来自内部的攻击。嵌入式防火墙是一种在分布式防火墙基础上提出的解决方案,该解决方案基于硬件实现,将分布式防火墙的实现嵌入到网卡中,以防止被保护的终端绕过基于软件的分布式防火墙对网络进行攻击。因此嵌入式防火墙完整的名称是分布式嵌入式防火墙。本文详细介绍了嵌入式防火墙的设计原理及详细的模块划分。 This article describes in detail the origin of embedded firewall, as well as the principle and design of embedded firewall structure. Distributed firewall will be a traditional firewall distributed to all terminals to prevent from internal attacks. Embedded firewall is a distributed firewall based on the proposed solution, the solution is based on the hardware implementation of the distributed firewall embedded in the card to prevent the protected terminal bypass software-based distributed firewall pairs Network attack. Therefore, the full name of the embedded firewall is a distributed embedded firewall. This article describes in detail the design principles of embedded firewall and detailed module division.