anti-attack flood sta-rate-threshold

Function

The anti-attack flood sta-rate-threshold command sets the flood threshold.

The undo anti-attack flood sta-rate-threshold command restores the default flood threshold.

The default flood threshold is 4 pps for ARP, DHCP, DHCPv6, IGMP, and mDNS packets, 8 pps for ND packets, 10 pps for broadcast packets other than ARP, DHCP, DHCPv6, and ND packets, and 10 pps for multicast packets other than IGMP and mDNS packets.

Format

anti-attack flood { arp | dhcp | dhcpv6 | igmp | mdns | nd | other-broadcast | other-multicast } sta-rate-threshold sta-rate-threshold

undo anti-attack flood { arp | dhcp | dhcpv6 | igmp | mdns | nd | other-broadcast | other-multicast } sta-rate-threshold

Parameters

Parameter	Description	Value
arp	Specifies ARP packets.	-
dhcp	Specifies DHCP packets.	-
dhcpv6	Specifies DHCPv6 packets.	-
igmp	Specifies IGMP packets.	-
mdns	Specifies mDNS packets.	-
nd	Specifies ND packets.	-
other-broadcast	Specifies broadcast packets other than ARP, DHCP, DHCPv6, and ND packets.	-
other-multicast	Specifies multicast packets other than IGMP and mDNS packets.	-
sta-rate-threshold	Specifies the rate threshold of broadcast traffic from STAs.	The value is an integer that ranges from 1 to 5000, in pps.

Views

VAP profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After the flood prevention function is enabled, you can set the broadcast traffic threshold.

When the traffic rate exceeds the threshold, the device considers a flood attack from the STA and discards the traffic. This prevents the upper-layer network from being affected by the flood.

If the flood blacklist function is enabled using the anti-attack flood blacklist enable command, the device adds flood STAs to the blacklist.

Prerequisites

The flood prevention function has been enabled using the undo anti-attack flood disable command.

Example

# Set the DHCP flood threshold to 100 pps.

<HUAWEI> system-view
[HUAWEI] wlan
[HUAWEI-wlan-view] vap-profile name profile1
[HUAWEI-vap-prof-profile1] anti-attack flood dhcp sta-rate-threshold 100