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Prestige 652 ADSL Security Router
11-10 Using the Prestige Web Configurator
Table 11-3 Attack Alert
FIELD DESCRIPTION DEFAULT VALUES
deletes half-open sessions as required to
accommodate new connection requests.
Do not set
Maximum Incomplete High
to
lower than the current
Maximum
I
ncomplete
Low
number.
half-open sessions rises above
100, and to stop deleting half-
open sessions with the number
of existing half-open sessions
drops below 80.
TCP Maximum
Incomplete
This is the number of existing half-open
TCP sessions with the same destination
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.
10 existing half-open TCP
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.
10
minutes (default)
(min)
Enter the length of
Blocking Time
in
minutes.
0
Click
Back
to return to the previous screen. Click
Apply
to save your customized settings and exit this
screen. Click
Reset
to return to the previous configuration. Use the
Help
icon to view field descriptions.