Fortinet FortiSwitch-548B v. 5.2.0.2 Administration Manual page 309

Command Mode
Global Config
7.13.2.15 dos-control tcpsynfin
This command enables the TCP SYN and FIN Denial of Service protection. If the mode is enabled,
Denial of Service prevention is active for this type of attack. If packets ingress having TCP flags SYN
and FIN set, the packets will be dropped if the mode is enabled.
Syntax
dos-control tcpsynfin
no dos-control tcpsynfin
no - This command disables the TCP SYN & FIN Denial of Service protection.
Default Setting
Disabled
Command Mode
Global Config
7.13.2.16 dos-control tcpoffset
This command enables the TCP Fragment Offset Denial of Service protection. If the mode is enabled,
Denial of Service prevention is active for this type of attack. If packets ingress having TCP Header Offset
equal to one (1), the packets will be dropped if the mode is enabled.
Syntax
dos-control tcpoffset
no dos-control tcpoffset
no - This command disables the TCP Fragment Offset Denial of Service protection.
Default Setting
Disabled
Command Mode
Global Config
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