520
Attack detection and prevention
commands
ack-flood action
Use
ack-flood action
to specify global actions against ACK flood attacks.
Use
undo ack-flood action
to restore the default.
Syntax
ack-flood action
{
drop
|
logging
} *
undo ack-flood action
Default
No global action is specified for ACK flood attacks.
Views
Attack defense policy view
Predefined user roles
network-admin
mdc-admin
Parameters
drop
: Drops subsequent ACK packets destined for the victim IP addresses.
logging
: Enables logging for ACK flood attack events.
Examples
# Specify
drop
as the global action against ACK flood attacks 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 action drop
Related commands
ack-flood threshold
ack-flood detect
ack-flood detect non-specific
ack-flood detect
Use
ack-flood detect
to configure IP address-specific ACK flood attack detection.
Use
undo
ack-flood detect
to remove IP address-specific ACK flood attack detection configuration.
Syntax
ack-flood
detect
{
ip ipv4-address
|
ipv6 ipv6-address
} [
vpn-instance vpn-instance-name
]
[
threshold threshold-value
] [
action
{ {
drop
|
logging
} * |
none
} ]
undo ack-flood
detect
{
ip
ipv4-address
|
ipv6
ipv6-address
} [
vpn-instance vpn-instance-name
]
