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Alarm Handling

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of alarms on the product.
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SECE_1. hwARPSGatewayConflict

SECE_1. hwARPSGatewayConflict


SECE/4/GATEWAY_CONFLICT:OID [oid] Gateway conflict.(SourceInterface=[OCTET], SourceIP=[OCTET], SourceMAC=[OCTET], OuterVlan=[INTEGER], InnerVlan=[INTEGER])

The system detected attack packets whose source IP address was the same as the gateway IP address.


Alarm ID Alarm Severity Alarm Type Warning equipmentAlarm(5)


Name Meaning
OID Indicates the ID of the MIB object.
SourceInterface Indicates the source interface of packets.
SourceIP Indicates the source IP address of packets.
SourceMAC Indicates the source MAC address of packets.


Indicates the outer VLAN ID of packets.


Indicates the inner VLAN ID of packets.

Impact on the System

If this alarm is generated, the user gateway information may be modified by an attacker. As a result, the user is attacked and user services are interrupted.

Possible Causes

The device was attacked by packets whose source IP address was the same as the gateway IP address.


  1. Find the interface where the gateway conflict occurs according to the value of SourceInterface.
  2. Lock the user who sends gateway conflict packets according to the values of SourceMAC and OuterVlan.
  3. Check whether the allocated address of the user conflicts with the gateway address. If the address conflicts, allocate an address to the user again. If the address does not conflict, the user may be the attacker. In this case, you can take such measures as disconnecting the user.

Related Information


Updated: 2019-08-21

Document ID: EDOC1000142054

Views: 189192

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