The implement of the PC firewall base on the knowledge: windows network system, the framework of windows system, OSI 7 layers protocol, the implement of TCP/IP in windows and network packet filter in windows network platform.

• 构建PC防火墙需要掌握包括windows网络体系、windows操作系统的总体架构、OSI网络七层协议和TCP/IP在windows中的实现以及Windows网络平台网络封包截获等相关技术基础。