本课件详细介绍了以太网以及ARP防火墙的基本概念以及如何设置防火墙才能增强我们电脑的安全性。 对有电脑的人来说是很不错的教程。-The courseware, as well as detailed information on Ethernet ARP firewall, as well as the basic concept of how to set up a firewall in order to enhance our computer security. On the compu