The Step By Step Guide: Demonstrate DirectAccess with Network Access Protection (NAP) in a Test Lab document describes how to configure NAP enforcement for access to the intranet in the DirectAccess test lab (described in the Step By Step Guide: Demonstrate DirectAccess in a Test Lab document).
NAP, built into Windows Server 2008 R2 and Windows 7, monitors and assesses the health of client computers when they attempt to connect or communicate on a network. NAP with DirectAccess allows you to specify that only computers that meet system health requirements can use DirectAccess to reach intranet resources.
If you have a working test lab based on the Step By Step Guide: Demonstrate DirectAccess in a Test Lab document, try out this new guide and watch how NAP prevents CLIENT1 from accessing intranet resources when it does not meet system health requirements.
Principal Technical Writer
Windows Server Networking Documentation Team