CHAPTER
15-1
User Guide for Cisco Secure ACS for Windows Server
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15
Unknown User Policy
After you have configured at least one database in the External User Databases
section of the HTML interface of Cisco Secure Access Control Server (ACS) for
Windows Server, you can decide how to implement other Cisco Secure ACS
features related to authentication and posture validation. These features are the
Unknown User Policy and user group mapping.
This chapter addresses the Unknown User Policy feature, found in the External
User Databases section of the Cisco Secure ACS HTML interface.
For information about user group mapping, see Chapter 16, “User Group
Mapping and Specification”.
For information about databases supported by Cisco Secure ACS and how to
configure databases in the HTML interface, see Chapter 13, “User Databases”.
This chapter contains the following topics:
•Known, Unknown, and Discovered Users, page 15-2
•Authentication and Unknown Users, page 15-4
–
About Unknown User Authentication, page 15-4
–
General Authentication of Unknown Users, page 15-5
–
Windows Authentication of Unknown Users, page 15-6
–
Performance of Unknown User Authentication, page 15-8