CHAPTER
14-1
User Guide for Cisco Secure ACS for Windows Server
78-16592-01
14
Network Admission Control
NAC enables you to control the degree of access permitted from computers
accessing your network through a AAA client configured to enforce NAC. The
basis of NAC is the validation of the posture, or state, of computers on a network.
The role of Cisco Secure Access Control Server (ACS) for Windows Server in
NAC is to perform posture validation.
This chapter contains the following topics:
• About Network Admission Control, page 14-1
• Implementing Network Admission Control, page 14-5
• NAC Databases, page 14-10
• NAC Policies, page 14-16
About Network Admission Control
This section contains the following topics:
• NAC AAA Components, page 14-2
• Posture Validation, page 14-3
• Posture Tokens, page 14-4
• Non-Responsive NAC-Client Computers, page 14-5
