SMC Networks BARRICADE SMC7901WBRA2 B1 - Manual (Page 100)

C HAPTER 8 | Firewall Configuration
DoS
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TCP SynWithData: Prevents the hacker sending a volume of
requests for connections that cannot be completed.
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UDP Bomb: Also called a UDP Flood or packet storm. Prevents the
hacker congesting the network by generating a flood of UDP packets
between it and the unit using the UDP chargen service (a testing
utility that generates a character string for every packet it
receives).
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UDP EchoChargen: Prevents the hacker from sending a UDP
packet to the echo server with a source port set to the chargen
port.
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packets/second: Enter the number of packets per second that you
want to scan for malicious activity.
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Sensitivity: Specifies the sensivity of the TCP/UDP port scan
prevention. (Options: High, Low; Default: Low)
◆ Select All — Selects all DoS prevention measures listed.
◆ Clear — Clears all fields.
◆ Enable Source IP Blocking — When multiple attacks are detected
from each of the fields listed above, or the packet threshold has been
exceeded - the IP address of the hacker is blocked.
◆ Block Interval (second) — Sets the length of time the IP address
should remain blocked.