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MIB Reference

AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R007

This document provides the function overview, relationships between tables, description of single objects, description of MIB tables, and description of alarm objects.
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Functions Overview

Functions Overview

To protect users against attacks, the following measures are taken:

  • ARP entry restriction

  • Anti-ARP attack

  • Network segment scan

The HUAWEI-ETHARP-MIB has the following functions:

  • Configuring ARP entry restriction

  • Checking the entry restriction of each interface

  • Checking the ARP entry learned based on the interface or the interface + VLAN ID

  • Checking the number of ARP packets that are discarded because of the entry restriction or timestamp suppression

  • Setting the time suppression rate based on the slot number

  • Setting to learn only the Response packet replied to the sent Request packet

  • Setting to send the Trap message when the suppression rate is exceeded

  • Setting the interval for sending alarm logs

The following modules can be set through the NMS:

Timestamp suppression module

  • The NMS supports the configuration of logging ARP attack defense and the interval of Trap messages.

  • The NMS supports the configuration of strict ARP learning.

  • The NMS supports the configuration of timestamp suppression rate.

ARP entry restriction module

  • Each ARP entry restriction has the corresponding private MIB, through which the NMS can query the number of current entries.

  • ARP entry restriction can be set through the NMS.

  • The NMS can query ARP entries or the statistics of ARP entries through the MIB.

The OID of the root object is:


Updated: 2019-06-05

Document ID: EDOC1000097213

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