ZyXEL Communications ZyXEL ZyWALL 2WE - Manual (Page 167)

ZyWALL 2 and ZyWALL 2WE
Firewall Configuration 15-5
Figure 15-2 Attack Alert
The following table describes the fields in this screen.
Table 15-1 Attack Alert
FIELD DESCRIPTION DEFAULT VALUES
Generate alert when
attack detected A detected attack automatically generates
a log entry. Check this box to generate an
alert (as well as a log) whenever an attack
is detected. See the chapter on logs for
more information on logs and alerts.
Denial of Service Thresholds
One Minute Low This is the rate of new half-open sessions
that causes the firewall to stop deleting
half-open sessions. The ZyWALL
continues to delete half-open sessions as
necessary, until the rate of new
connection attempts drops below this
number.
80 existing half-open sessions.