Dear Community
We are trying to implement DHCP in ACI with DHCP Relay with Multiple-VRFs (Inter-VRF). As DHCP Server customer is using Infoblox and first tests where not successfull. For info, dhcp in same VRF where DHCP Server is also located works with no special configuration on Infoblox side. Seems that Option 82 is supported out of the box.
Does anybody have experience or any tips what has to be configured on Infoblox? Enclosed some information from my side. Enclosed the DHCP Request which is forwarded from the Leaf Switch (DCHP Relay). We would like to now assign a IP Address from the Option 82 Suboption: (5) Link selection (10.200.0.0):
Internet Protocol Version 4, Src: 10.180.14.1, Dst: 10.180.14.20
User Datagram Protocol, Src Port: 67, Dst Port: 67
Dynamic Host Configuration Protocol (Discover)
Message type: Boot Request (1)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 1
Transaction ID: 0xa3f765b9
Seconds elapsed: 0
Bootp flags: 0x0000 (Unicast)
Client IP address: 0.0.0.0
Your (client) IP address: 0.0.0.0
Next server IP address: 0.0.0.0
Relay agent IP address: 10.180.14.1
Client MAC address: VMware_aa:5c:9f (00:50:56:aa:5c:9f)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name not given
Magic cookie: DHCP
Option: (53) DHCP Message Type (Discover)
Option: (61) Client identifier
Option: (12) Host Name
Option: (60) Vendor class identifier
Option: (55) Parameter Request List
Option: (82) Agent Information Option
Length: 48
Option 82 Suboption: (1) Agent Circuit ID
Option 82 Suboption: (2) Agent Remote ID
Option 82 Suboption: (154) Unknown
Option 82 Suboption: (151) VRF name/VPN ID
Option 82 Suboption: (11) Server ID Override (10.200.0.1)
Option 82 Suboption: (5) Link selection (10.200.0.0)
Option: (255) End
Option End: 255
Padding: 040ac80000ff00000000
Additional information which I have found and could help others in similar situation
If anybody has some tips would appreciate much and would be glad to test out and update this blog with according experience. It seems that a lot of people have issues with DHCP and ACI and there are not a lot of good discussions about it and hope that with this Question / Discussion I can improve this situation a little bit.
Thanks Erich