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


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


Alarm Handling

S600-E V200R010C00

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

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).
DHCP_1. hwUntrustedReplyPktAlarm

DHCP_1. hwUntrustedReplyPktAlarm


DHCP/1/REPLYTRAP:OID [OID] The number of the discarded DHCP reply packets on the untrusted interface exceeds the threshold. (IfIndex=[INTEGER], VlanIndex=[INTEGER], Interface=[OCTET], VlanID=[INTEGER], DiscardedNumber=[INTEGER])

The number of DHCP Reply packets discarded on the untrusted interface exceeded the threshold.


Alarm ID Alarm Severity Alarm Type Critical equipmentAlarm(5)


Name Meaning
OID Indicates the MIB object ID of the alarm.
IfIndex Indicates the interface index.
VlanIndex Indicates the VLAN index.
Interface Indicates the interface name.
VlanID Indicates the VLAN ID.
DiscardedNumber Indicates the number of discarded packets.

Impact on the System

Invalid DHCP packets are discarded.

Possible Causes

Bogus DHCP server attacks occurred.


  1. Capture packets on the interface to check whether a bogus DHCP server attack occurs on this interface.

    • Check whether the DHCP server address in the received DHCP Reply packet is the specified server address. If not, the DHCP server is a bogus server. Because the invalid DHCP packets have been discarded, no action is required.
    • If the DHCP server is a valid server and needs to be used, run the dhcp snooping trusted command on the interface to configure it as a trusted interface.

Related Information


Updated: 2019-12-31

Document ID: EDOC1000141873

Views: 183253

Downloads: 19

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next