IBM Proventia Network Enterprise User Manual - page 85
How Policies Apply to Ad Hoc and Background Scans
85
IBM Proventia Network Enterprise Scanner User Guide, Version 1.3
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. Table 30 describes how refresh cycles and scan
windows from the background Scan control policy affect ad hoc scans:
Scan window and
refresh cycle
examples
Assume the following:
●
Your scanning refresh cycle is every two days.
●
Scanning windows run from 8:00 P.M. until midnight and from 1:00 A.M. until
4:00 A.M. each day.
Consider the following cases:
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 choose the option to run the scans only during open
scan windows.
Table 30: Ad hoc Scan Control policy
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…
first night of a refresh cycle
the scan runs from 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.
Table 31: Examples of scan windows and refresh cycles with ad hoc scans