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User Guide for Cisco Secure ACS for Windows Server
78-14696-01, Version 3.1
Chapter 6 Setting Up and Managing User Groups
Common User Group Settings
Setting Usage Quotas for a User Group
Note
If this feature does not appear, click Interface Configuration, click Advanced
Options, and then select the Usage Quotas check box.
Perform this procedure to define usage quotas for members of a group. Session
quotas affect each user of a group individually, not the group collectively. You can
set quotas for a given period in two ways:
•
By total duration of session
•
By the total number of sessions
If you make no selections in the Usage Quotas section for a group, no usage
quotas are enforced on users assigned to that group, unless you configure usage
quotas for the individual users.
Note
The Usage Quotas section on the Group Settings page does not show usage
statistics.
Usage statistics are available only on the settings page for an individual user. For
more information, see
Setting User Usage Quotas Options, page 7-18
.
When a user exceeds his or her assigned quota, Cisco Secure ACS denies that user
access upon attempting to start a session. If a quota is exceeded during a session,
Cisco Secure ACS allows the session to continue.
You can reset the usage quota counters for all users of a group from the Group
Settings page. For more information about resetting usage quota counters for a
whole group, see
Resetting Usage Quota Counters for a User Group, page 6-52
.
Tip
To support time-based quotas, we recommend enabling accounting update packets
on all AAA clients. If update packets are not enabled, the quota is updated when
the user logs off. If the AAA client through which the user is accessing your
network fails, the quota is not updated. In the case of multiple sessions, such as
with ISDN, the quota is not updated until all sessions terminate. This means that
a second channel will be accepted even if the first channel has exhausted the quota
for the user.