Planet Networking & Communication SGS-6340-24T4S Command Manual page 765

Usage Guide:
With this function enabled, the switch will be able to drop TCP and UDP data packet whose destination port is equal
to the source port. This function can be used associating the "dosattack-check ipv4-first-fragment enable" function so
to block the IPv4 fragment TCP and UDP data packet whose destination port is equal to the source port.
Example:
Drop the non-fragment TCP and UDP data packet whose destination port is equal to the source port.
Switch(config)#dosattack-check srcport-equal-dstport enable
44.4 dosattack-check icmp-attacking enable
Command:
[no] dosattack-check icmp-attacking enable
Function:
Enable the ICMP fragment attack checking function on the switch; the "no" form of this command disables this
function.
Parameter:
None
Default:
Disable the ICMP fragment attack checking function on the switch
Command Mode:
Global Mode
Usage Guide:
With this function enabled the switch will be protected from the ICMP fragment attacks, dropping the fragment
ICMPv4/v6 data packets whose net length is smaller than the specified value.
Example:
Enable the ICMP fragment attack checking function.
Switch(config)#dosattack-check icmp-attacking enable
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