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>
Your browser version is too early. Some functions of the website may be unavailable. To obtain better user experience, upgrade the browser to the latest version.
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/4/DHCP_RELAY_WRONG_MAC
DHCP/4/DHCP_RELAY_WRONG_MAC
Message
DHCP/4/DHCP_RELAY_WRONG_MAC:
DHCP relay receive a dhcp packet with wrong 'chaddr'. (CHADDR=[STRING1], MAC type=[STRING2], InterfaceName=[STRING3]).
Description
The DHCP relay receives a DHCP packet with the incorrect client MAC address.
Parameters
Parameter Name
Parameter Meaning
CHADDR
MAC address of the DHCP client.
MAC type
MAC address type of the DHCP client.
broadcast
multicast
InterfaceName
Name of the interface configured with the DHCP relay function.
Possible Causes
The DHCP relay receives a DHCP packet in which the client MAC address field is set to a broadcast or unicast address. To prevent attacks, the device considers this packet as an invalid packet.
Procedure
Check whether there are DHCP attacks based on the client MAC address and the name of the interface that receives the packet.
Y=>2.
N=>3.
Configure DHCP snooping to check validity of DHCP packets.