Cisco Systems 3.3 Network Admission Control

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