ZyXEL Communications Internet Security Gateway ZyWALL 2 Series - Manual (Page 577)

ZyWALL 2 Series User’s Guide
Firewall Commands L-3
Chart L-1 Firewall Commands
FUNCTION COMMAND DESCRIPTION
config edit firewall attack block
<yes | no> Set this command to yes to block new traffic after
the tcp-max-incomplete threshold is exceeded. Set
it to no to delete the oldest half-open session when
traffic exceeds the tcp-max-incomplete threshold.
config edit firewall attack block-
minute <0-255> This command sets the number of minutes for new
sessions to be blocked when the tcp-max-
incomplete threshold is reached. This command is
only valid when block is set to yes.
config edit firewall attack minute-
high <0-255> This command sets the threshold rate of new half-
open sessions per minute where the ZyWALL starts
deleting old half-opened sessions until it gets them
down to the minute-low threshold.
config edit firewall attack minute-
low <0-255> This command sets the threshold of half-open
sessions where the ZyWALL stops deleting half-
opened sessions.
config edit firewall attack max-
incomplete-high <0-255> This command sets the threshold of half-open
sessions where the ZyWALL starts deleting old half-
opened sessions until it gets them down to the max
incomplete low.
config edit firewall attack max-
incomplete-low <0-255> This command sets the threshold where the
ZyWALL stops deleting half-opened sessions.
config edit firewall attack tcp-
max-incomplete <0-255> This command sets the threshold of half-open TCP
sessions with the same destination where the
ZyWALL starts dropping half-open sessions to that
destination.
S S e e t t s s config edit firewall set <set #>
name <desired name> This command sets a name to identify a specified
set.