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Fat AP and Cloud AP V200R010C00 Command Reference

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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).
fragment-reassemble user-configure

fragment-reassemble user-configure

Function

The fragment-reassemble user-configure command configures user-defined items for the fragment reassembly function.

The undo fragment-reassemble user-configure command cancels the configuration of user-defined items for the fragment reassembly function.

Format

fragment-reassemble user-configure { defense-check | pass-through }

undo fragment-reassemble user-configure { defense-check | pass-through }

Parameters

Parameter Description Value
defense-check Indicates fragment attack defense. -
pass-through Indicates the pass through mode. -

Views

System view

Default Level

2: Configuration level

Usage Guidelines

By default, all user-defined items of the fragment reassembly function are disabled.

After the pass through mode is enabled (using the fragment-reassemble user-configure pass-through command), in some special fragment traffic scenarios (for example, the fragments completely overlap, and the overlapped part has the same content), the system will regard the traffic as abnormal traffic and will not reassemble the fragments. If the fragment attack defense function has been enabled (using the fragment-reassemble user-configure defense-check command), the abnormal fragments will be discarded. If the fragment attack defense function has not been enabled, the system will forward the fragments. After the pass through mode is disabled, the system assembles the fragments based on the normal processing flow.

Example

# Enable the fragment attack defense function.

<Huawei> system-view
[Huawei] fragment-reassemble user-configure defense-check
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Updated: 2019-11-21

Document ID: EDOC1100064352

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