The key requirements for this scenario are as follows:
Catalog consoles or terminals should be on a separate subnet along with the main admin subnet
Public Wi-Fi and consoles or terminals for public Internet usage should be on the same separate subnet
Kiosks for self check-in/check-out books and media
Access to online library catalog
Public Internet traffic must be monitored for any Internet usage policy violation
Public computers should have printer access
This is a typical scenario for a public library network. Since a public library is a public place with access to computers for public usage, it is very important to isolate sensitive networks such as a library member database and library office administration. In this example, the network is isolated by using two subnets listed in the following table: