SmartDefense Categories
Chapter 13: Using SmartDefense 409
Table 86: Port Scan Fields
In this field… Do this…
Number of ports
accessed
SmartDefense detects ports scans by measuring the number of ports
accessed over a period of time. The number of ports accessed must exceed
the Number of ports accessed value, within the number of seconds specified by
the In a period of [seconds] value, in order for SmartDefense to consider the
activity a scan.
Type the minimum number of ports that must be accessed within the In a
period of [seconds] period, in order for SmartDefense to detect the activity as
a port scan.
For example, if this value is 30, and 40 ports are accessed within a specified
period of time, SmartDefense will detect the activity as a port scan.
For Host Port Scan, the default value is 30. For Sweep Scan, the default
value is 50.
In a period of
[seconds]
SmartDefense detects ports scans by measuring the number of ports
accessed over a period of time. The number of ports accessed must exceed
the Number of ports accessed value, within the number of seconds specified by
the In a period of [seconds] value, in order for SmartDefense to consider the
activity a scan.
Type the maximum number of seconds that can elapse, during which the
Number of ports accessed threshold is exceeded, in order for SmartDefense to
detect the activity as a port scan.
For example, if this value is 20, and the Number of ports accessed threshold is
exceeded for 15 seconds, SmartDefense will detect the activity as a port
scan. If the threshold is exceeded for 30 seconds, SmartDefense will not
detect the activity as a port scan.
The default value is 20 seconds.
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