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ZyWALL 50 Internet Security Gateway
Using the ZyWALL Web Configurator 9-11
Table 9-3 Attack Alert
FIELD DESCRIPTION DEFAULT VALUES
Incomplete host IP address that causes the firewall to
start dropping half-open sessions to that
same destination host IP address. Enter a
number between 1 and 250. As a general
rule, you should choose a smaller number
for a smaller network, a slower system or
limited bandwidth.
sessions.
Blocking Time
When TCP Maximum Incomplete is
reached you can choose if the next
session should be allowed or blocked. If
you check Blocking Time any new
sessions will be blocked for the length of
time you specify in the next field (min) and
all old incomplete sessions will be cleared
during this period. If you want strong
security, it is better to block the
traffic for a short time, as it will give the
server some time to digest the loading.
Select this check box to specify
a number in minutes (min) text
box.
(min)
Enter the length of Blocking Time in
minutes.
0
When you have finished, click Apply to save your customized settings and exit this screen, Cancel to
exit this screen without saving, or Help for online HTML help on fields in this screen.