Network Security
[ Network Security > DoS > Global ]
131
RM GUI GRS
Release
8.0
09/2019
4.5.1 DoS Global
[ Network Security > DoS > Global ]
In this dialog, you specify the DoS settings for the TCP/UDP, IP and ICMP protocols.
TCP/UDP
A scanner uses port scans to prepare network attacks. The scanner uses different techniques to
determine running devices and open ports. This frame lets you activate filters for specific scanning
techniques.
The device supports the detection of the following scan types:
Null scans
Xmas scans
SYN/FIN scans
TCP Offset attacks
TCP SYN attacks
L4 Port attacks
Minimal Header scans
Null Scan filter
Activates/deactivates the Null Scan filter.
The Null Scan filter detects incoming data packets with no TCP flags set and discards them.
Possible values:
marked
The filter is active.
unmarked
(default setting)
The filter is inactive.
Xmas filter
Activates/deactivates the Xmas filter.
The Xmas filter detects incoming data packets with the TCP flags FIN, URG and PUSH set
simultaneously and discards them.
Possible values:
marked
The filter is active.
unmarked
(default setting)
The filter is inactive.
SYN/FIN filter
Activates/deactivates the SYN/FIN filter.
The SYN/FIN filter detects incoming data packets with the TCP flags SYN and FIN set
simultaneously and discards them.
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