522
Syntax
ack-flood detect non-specific
undo ack-flood detect non-specific
Default
Global ACK flood attack detection is disabled.
Views
Attack defense policy view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
The global ACK flood attack detection applies to all IP addresses except those specified by the
ack-flood detect
command. The global detection uses the global trigger threshold set by the
ack-flood threshold
command and global actions specified by the
ack-flood action
command.
Examples
# Enable global ACK flood attack detection in attack defense policy
atk-policy-1
.
<Sysname> system-view
[Sysname] attack-defense policy atk-policy-1
[Sysname-attack-defense-policy-atk-policy-1] ack-flood detect non-specific
Related commands
ack-flood action
ack-flood detect
ack-flood threshold
ack-flood threshold
Use
ack-flood threshold
to set the global threshold for triggering ACK flood attack prevention.
Use
undo ack-flood threshold
to restore the default.
Syntax
ack-flood threshold threshold-value
undo ack-flood threshold
Default
The global threshold is 1000 for triggering ACK flood attack prevention.
Views
Attack defense policy view
Predefined user roles
network-admin
mdc-admin
Parameters
threshold-value
: Specifies the threshold value. The value range is 1 to 1000000 in units of ACK
packets sent to an IP address per second.