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Fat AP and Cloud AP V200R010C00 Command Reference

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flood-detect threshold

flood-detect threshold


The flood-detect threshold command sets the flood attack detection threshold. A flood attack occurs when an AP receives a large number of packets of the same type within a short period.

The undo flood-detect threshold command restores the default flood attack detection threshold.

By default, the flood attack detection threshold is 500 seconds.


flood-detect threshold threshold

undo flood-detect threshold





threshold threshold

Specifies the flood attack detection threshold.

The value is an integer that ranges from 1 to 1000.


WIDS profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

A flood attack occurs when a device receives a large number of packets of the same type within a short period. As a result, the device is flooded by too many attack packets to process service packets from authorized wireless terminals.

After the flood attack detection function is enabled, a device counts the number of packets of the same type that it receives from a user at regular intervals. When the number exceeds a specified threshold, the device considers that the user launches a flood attack. If the dynamic blacklist function is enabled, the user will be added to a dynamic blacklist. If the threshold is set to a small value, the device may incorrectly add authorized users to the dynamic blacklist, causing the users unable to go online.

Follow-up Procedure

Run the dynamic-blacklist enable command to enable the dynamic blacklist function.


# Set the flood attack detection threshold to 350.

<Huawei> system-view
[Huawei] wlan
[Huawei-wlan-view] ap-group name office
[Huawei-wlan-ap-group-office] radio 0
[Huawei-wlan-group-radio-office/0] wids attack detect enable flood
[Huawei-wlan-group-radio-office/0] quit
[Huawei-wlan-ap-group-office] quit
[Huawei-wlan-view] wids-profile name huawei
[Huawei-wlan-wids-prof-huawei] flood-detect threshold 350
Updated: 2019-11-21

Document ID: EDOC1100064352

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