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DoS Criteria and Port Scan Criteria
Set up DoS and port scan criteria in the spaces provided (as shown below).
Parametre Defaults Description
Total incomplete 300 Defines the rate of new unestablished sessions that will cause the
TCP/UDP sessions sessions software to start deleting half-open sessions.
HIGH
Total incomplete 250 Defines the rate of new unestablished sessions that will cause the
TCP/UDP sessions sessions software to stop deleting halfopen sessions.
LOW
Incomplete 250 Maximum number of allowed incomplete TCP/UDP sessions
TCP/UDP sessions sessions per minute.
(per min) HIGH
Incomplete 200 Minimum number of allowed incomplete TCP/UDP sessions
TCP/UDP sessions sessions per minute.
(per min) LOW
Max. incomplete TCP/ 10 Maximum number of incomplete TCP/UDP sessions
UDP sessions number from the same host.
from same host
Incomplete TCP/ 300 Length of time before an incomplete TCP/UDP session is detected
UDP sessions detect msec as incomplete.
sensitive time period
Maximum half-open 30 Maximum number of half-open fragmentation packets from
fragmentation packet the same host.
number from same
host
Half-open 10000 Length of time before a half-open fragmentation session is
fragmentation detect msec detected as half-open.
sensitive time period
Flooding cracker 300 sec Length of time from detecting a flood attack to blocking the attack.
block time
Note:The firewall does not significantly affect system performance, so we
advise enabling the prevention features to protect your network.
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