Network Router User Manual

Table 15. Changes to Assessment and Discovery policies (continued)
If you... Then you...
Modify the configured settings Cannot save the policy. Therefore, the
changes apply to only that ad hoc scan and
do not affect configured background scans.
Scan Control policy
You cannot configure refresh cycles or scan windows for ad hoc scans because they
are not included in the ad hoc Scan Control policy. The following table describes
how refresh cycles and scan windows from the background Scan Control policy
affect ad hoc scans:
Table 16. Ad Hoc Scan Control policy
Option from Background Scan Control
policy Impact on ad hoc scans
Scan Windows You can choose whether to run an ad hoc
scan only during the open scan windows
defined for background scans and to pause
when the windows close.
Refresh cycles Ad hoc scans are never bound by the refresh
cycles that apply to background scans. Ad
hoc scans continue to scan until they finish
or until you stop them. Ad hoc scans pause
when scan windows close if you select the
option to run the scans only during open
scan windows.
Scan window and refresh cycle examples
Assume the following points:
v Your scanning refresh cycle is every two days.
v Scanning windows run from 8:00 P.M. until midnight and from 1:00 A.M. until
4:00 A.M. each day.
Table 17. Examples of scan windows and refresh cycles with ad hoc scans
At 11:00 P.M. on the...
You start an ad hoc scan that takes three
hours. The scan runs from 11:00 P.M. until
midnight, and then the scan runs from...
First night of a refresh cycle 1:00 A.M. until 3:00 A.M. on the second day
of the same refresh cycle.
Second night of a refresh cycle the scan runs from 1:00 A.M. until 3:00 A.M.
on the first day of the next refresh cycle.
82 Enterprise Scanner: User Guide