DHCP relay issues

Leo_Gu — Thu, 20 Nov 2014 02:11:00 GMT

Hi Experts,

I have issues on bootprelay function on my Summit460.

Topo as follows:
client server----(tag 983)Switch(tag 981)----Jumpstart server(DHCP server)

I have defined the Bootprelay on my switch but the DHCP relay fails all the time and I can see many dropped response.

========================
Bootprelay : Enabled on virtual router "VR-Default"DHCP Relay Agent Information Option : Enabled on virtual router "VR-Default"
DHCP Relay Agent Information Check : Enabled on virtual router "VR-Default"
DHCP Relay Agent Information Policy : Replace
DHCP Relay Agent Information Remote-ID : "ENIQ-SW1"

Bootprelay servers for virtual router "VR-Default":
Destination: 10.30.64.132

DHCP/BOOTP relay statistics for virtual router "VR-Default"
Received from client = 467335 Received from server = 4431
Requests relayed = 12739 Responses relayed = 0
DHCP Discover = 465924 DHCP Offer = 4431
DHCP Request = 6 DHCP Ack = 0
DHCP Decline = 0 DHCP NAck = 0
DHCP Release = 1388
DHCP Inform = 17

DHCP Information Option 82 packets statistics for virtual router "VR-Default"
Received from client = 3255 Received from server = 0
Requests replaced = 3255 Responses dropped = 4431
Opt82 added to Requests = 8390

Note: Default Remote-ID : System MAC Address
========================

SW config in here. http://pan.baidu.com/s/1sd0y

Kindly pls help me on this.

Thanks.

RE: DHCP relay issues

Ravisekar__Raja — Fri, 21 Nov 2014 01:20:00 GMT

With a packet capture did you checked where exactly it is stuck during DORA process?

RE: DHCP relay issues

Leo_Gu — Fri, 21 Nov 2014 01:20:00 GMT

Thanks Ravi. Issue got resolved by removing option 82.

RE: DHCP relay issues

Ravisekar__Raja — Fri, 21 Nov 2014 01:20:00 GMT

Excellent..

topic DHCP relay issues in ExtremeSwitching (EXOS/Switch Engine)

DHCP relay issues

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RE: DHCP relay issues

RE: DHCP relay issues