Syn-Ack-Flood Threshold - HP FlexNetwork MSR Series Command Reference Manual

Syntax
syn-ack-flood detect non-specific
undo syn-ack-flood detect non-specific
Default
Global SYN-ACK flood attack detection is disabled.
Views
Attack defense policy view
Predefined user roles
network-admin
Usage guidelines
The global SYN-ACK flood attack detection applies to all IP addresses except for those specified by
the syn-ack-flood detect command. The global detection uses the global trigger threshold set by
the syn-ack-flood threshold command and global actions specified by the syn-ack-flood action
command.
Examples
# Enable global SYN-ACK flood attack detection in the attack defense policy atk-policy-1.
<Sysname> system-view
[Sysname] attack-defense policy atk-policy-1
[Sysname-attack-defense-policy-atk-policy-1] syn-ack-flood detect non-specific
Related commands
syn-ack-flood action
syn-ack-flood detect

syn-ack-flood threshold

syn-ack-flood threshold
Use syn-ack-flood threshold to set the global threshold for triggering SYN-ACK flood attack
prevention.
Use undo syn-ack-flood threshold to restore the default.
Syntax
syn-ack-flood threshold threshold-value
undo syn-ack-flood threshold
Default
The global threshold is 1000 for triggering SYN-ACK flood attack prevention.
Views
Attack defense policy view
Predefined user roles
network-admin
Parameters
threshold-value: Specifies the threshold value. The value range is 1 to 1000000 in units of SYN-ACK
packets sent to an IP address per second.
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