Figure 110 Configuration > Firewall > Dos Settings; Table 81 Configuration > Firewall > Dos Settings - ZyXEL Communications Vantage CNM User Manual

Vantage CNM User's Guide
Figure 110
The following table describes the labels in this screen.
Table 81 Configuration > Firewall > DoS Settings
LABEL
One Minute Low
One Minute High
Maximum
Incomplete Low
Maximum
Incomplete High
223
Configuration > Firewall > DoS Settings
DESCRIPTION
This is the rate of new half-open sessions that
causes the firewall to stop deleting half-open
sessions. The ZyXEL device continues to delete
half-open sessions as necessary, until the rate
of new connection attempts drops below this
number.
This is the rate of new half-open sessions that
causes the firewall to start deleting half-open
sessions. When the rate of new connection
attempts rises above this number, the ZyXEL
device deletes half-open sessions as required
to accommodate new connection attempts.
This is the number of existing half-open
sessions that causes the firewall to stop
deleting half-open sessions. The ZyXEL device
continues to delete half-open requests as
necessary, until the number of existing half-
open sessions drops below this number.
This is the number of existing half-open
sessions that causes the firewall to start
deleting half-open sessions. When the number
of existing half-open sessions rises above this
number, the ZyXEL device deletes half-open
sessions as required to accommodate new
connection requests. Do not set Maximum
Incomplete High to lower than the current
Maximum Incomplete Low number.
EXAMPLE VALUES
80 existing half-open
sessions.
100 half-open sessions per
minute. The above numbers
cause the ZyXEL device to
start deleting half-open
sessions when more than 100
session establishment
attempts have been detected
in the last minute, and to stop
deleting half-open sessions
when fewer than 80 session
establishment attempts have
been detected in the last
minute.
80 existing half-open
sessions.
100 existing half-open
sessions. The above values
causes the ZyXEL device to
start deleting half-open
sessions when the number of
existing half-open sessions
rises above 100, and to stop
deleting half-open sessions
with the number of existing
half-open sessions drops
below 80.
Chapter 12 Configuration > Firewall