The document provides instructions for configuring the Windows Server 2012 R2 Base Configuration test lab. It describes installing Windows Server 2012 R2 on DC1 and configuring it as an Active Directory domain controller, DNS server, and DHCP server for the Corpnet subnet. It also describes installing Windows Server 2012 R2 on additional computers APP1 and CLIENT1, configuring their TCP/IP settings, and joining them to the Corp domain. This establishes the basic Corpnet infrastructure to build out additional test labs.