... 0Fa0/ 12 Fa0/0Fa0/1Fa0/11S0/0/01 92. 168.1.0 /24 1 72. 31 .24 1 .25 4VPNTFTPFa0 /2 Securing the Network 25 Figure 1-18Hacking Skills MatrixWith the development of large open networks, security ... some devices. 22 Chapter 1: Building a Simple Network Securing the Network Security is a fundamental component of every network design. When planning, building, and operating a network, you should ... place.Securing the Network 23 Today, corporate networks require access to the Internet and other public networks. Most of these networks have several access points to public and other private networks,...