
Chapter 6      User Group Management
Configuration-specific User Group Settings
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User Guide for Cisco Secure ACS for Windows Server
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the calling station. (Watchdog packets are interim packets sent periodically 
during a session. They provide an approximate session length in the event that 
no stop packet is received to mark the end of the session.)
You can control whether Cisco Secure ACS propagates passwords changed 
by this feature. For more information, see Local Password Management, 
page 8-5.
Cisco Secure ACS supports password aging using the RADIUS protocol under 
MS CHAP versions 1 and 2. Cisco Secure ACS does not support password aging 
over Telnet connections using the RADIUS protocol.
Caution If a user with a RADIUS connection tries to make a Telnet connection to the AAA 
client during or after the password aging warning or grace period, the change 
password option does not appear, and the user account is expired.
Password Aging Feature Settings
This section details only the Password Aging for Device-hosted Sessions and 
Password Aging for Transit Sessions mechanisms. For information on the 
Windows Password Aging mechanism, see Enabling Password Aging for Users in 
Windows Databases, page 6-26. For information on configuring local password 
validation options, see Local Password Management, page 8-5.
Note The password aging feature does not operate correctly if you also use the callback 
feature. When callback is used, users cannot receive password aging messages at 
login.
The password aging feature in Cisco Secure ACS has the following options:
•Apply age-by-date rules—Selecting this check box configures Cisco Secure 
ACS to determine password aging by date. The age-by-date rules contain the 
following settings:
–
Active period—The number of days users will be allowed to log in 
before being prompted to change their passwords. For example, if you 
enter 20, users can use their passwords for 20 days without being 
prompted to change them. The default Active period is 20 days.
–
Warning period—The number of days users will be notified to change 
their passwords. The existing password can be used, but the Cisco Secure 
ACS presents a warning indicating that the password must be changed