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FAQ-Address Assignment Fails Due to the Giadd Address Error in the DHCPR Packets Received by the ME60

Publication Date:  2012-07-27 Views:  75 Downloads:  0
Issue Description
The ME60 functions as a DHCP relay server; the M switch of another vendor functions as a DHCP relay client. The attached PC fails to obtain an IP address through DHCP.
Networking diagram:
ME60 ----------- M switch -------------PC 

Alarm Information

Handling Process
Run the debug dhcpr all command in the hidden view, and the command output includes the information: [ Giadd ]: However, the gateway in the address pool of the ME60 is set to On the ME60, the Giadd address is required to be the same as the gateway address of the IP address pool. Otherwise, address assignment may fail.
[ DHCPR Receive from client ] : =====
[ Xid ]:1305728797
[ cmd ]:1
[ Htype ]:1
[ Hlen ]:6
[ Hops ]:1
[ Secs ]:768
[ Flag ]:0
[ Ciadd ]:
[ Yiadd ]:
[ Siadd ]:
[ Giadd ]: chaddr:001c-2310-994b
[ Sname ]:
[ File ]:
[ Option ]:-----
Message type:DISCOVER
Option82 :RID:,CID:?

*2.2616326221 NMEDS-CMNET-ME60 DHCR/7/DCPRDBG:Get dhcp client packet from Interf
*2.2616326221 NMEDS-CMNET-ME60 DHCR/7/DCPRDBG:
DHCPR ERR:Can’t find available server
*2.2616326221 NMEDS-CMNET-ME60 DHCR/7/DCPRDBG:
DHCPR ERR:DHCPR_ProClientPktFromInterface call DHCPR_GetServerAndGw failed
*2.2616326221 NMEDS-CMNET-ME60 DHCR/7/DCPRDBG:
DHCPR ERR: DHCPR_ProPkt call DHCPR_ProClientPkt failed 

Root Cause