No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

Fat AP and Cloud AP V200R010C00 Command Reference

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
anti-attack tcp-syn car

anti-attack tcp-syn car

Function

The anti-attack tcp-syn car command sets the rate limit at which TCP SYN packets are received.

The undo anti-attack tcp-syn car command restores the default rate limit at which TCP SYN packets are received.

By default, the rate limit at which TCP SYN packets are received is 155000000 bit/s.

Format

anti-attack tcp-syn car cir cir

undo anti-attack tcp-syn car

Parameters

Parameter

Description

Value

cir cir

Specifies the committed information rate (CIR) at which TCP SYN packets are received.

The value is an integer that ranges from 8000 to 155000000, in bit/s.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After defense against TCP SYN flood attacks is enabled, run the anti-attack tcp-syn car command to set the rate limit at which TCP SYN packets are received. If the rate of received TCP SYN attack packets exceeds the rate limit, the device discards excess TCP SYN flood attack packets to ensure that the device CPU works properly.

Prerequisites

Defense against TCP SYN flood attacks has been enabled using the anti-attack tcp-syn enable command.

Example

# Set the rate limit at which TCP SYN packets are received to 8000 bit/s.

<Huawei> system-view
[Huawei] anti-attack tcp-syn enable
[Huawei] anti-attack tcp-syn car cir 8000
Translation
Download
Updated: 2019-11-21

Document ID: EDOC1100064352

Views: 207968

Downloads: 122

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next