Icmp-Flood Detect Non-Specific - HP FlexNetwork 7500 Series Command Reference Manual

Predefined user roles
network-admin
mdc-admin
Parameters
ip-address: Specifies the IPv4 address to be protected. The ip-address argument cannot be all 1s or
0s.
vpn-instance vpn-instance-name: Specifies the MPLS L3VPN instance to which the protected IP
address belongs. The vpn-instance-name argument is a case-sensitive string of 1 to 31 characters.
Do not specify this option if the protected IP address is on the public network.
threshold threshold-value: Specifies the threshold for triggering ICMP flood attack prevention. The
value range is 1 to 1000000 in units of ICMP packets sent to the specified IP address per second.
action: Specifies the actions when an ICMP flood attack is detected. If no action is specified, the
global actions set by the icmp-flood action command apply.
drop: Drops subsequent ICMP packets destined for the protected IP address.
logging: Enables logging for ICMP flood attack events.
none: Takes no action.
Usage guidelines
With ICMP flood attack detection configured for an IP address, the device is in attack detection state.
When the sending rate of ICMP packets to the IP address reaches the threshold, the device enters
prevention state and takes the specified actions. When the rate is below the silence threshold
(three-fourths of the threshold), the device returns to the attack detection state.
You can configure ICMP flood attack detection for multiple IP addresses in one attack defense policy.
Examples
# Configure ICMP flood attack detection for 192.168.1.2 in attack defense policy atk-policy-1.
<Sysname> system-view
[Sysname] attack-defense policy atk-policy-1
[Sysname-attack-defense-policy-atk-policy-1] icmp-flood detect ip 192.168.1.2 threshold
2000
Related commands
icmp-flood action

icmp-flood detect non-specific

icmp-flood threshold
icmp-flood detect non-specific
Use icmp-flood detect non-specific to enable global ICMP flood attack detection.
Use undo icmp-flood detect non-specific to disable global ICMP flood attack detection.
Syntax
icmp-flood detect non-specific
undo icmp-flood detect non-specific
Default
Global ICMP flood attack detection is disabled.
571