DNAC with DHCP Server

[yasushi.azami]

Hello Community,

IS it feasible to configure for DNAC as DHCP , if configured what will be impact (or) any future issue with DNAC with DHCP Server.

is anyone applied this setup in their environment ?

Needful suggestion would be highly appreciated.

[Mike.Cifelli]

IS it feasible to configure for DNAC as DHCP , if configured what will be impact (or) any future issue with DNAC with DHCP Server.
-AFAIK this is not feasible. I am running DNAC 1.3.1.3 in our environment. If you login to DNAC & go to: Design->Network Settings->Network you can configure certain network properties here. Note that you will see that DNAC is capable of functioning as an SNMP and/or Syslog server. You do not have this option for DHCP. If you plan to use PnP make sure the remote DHCP server is properly configured with option 43. See (DHCP Controller Discovery) here: https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/1-3/user_guide/b_cisco_dna_center_ug_1_3/b_cisco_dna_center_ug_1_3_chapter_01011.html
Good luck & HTH!

[Mohamed Alhenawy]

Hi @yasushi.azami 

As per cisco validation design, Infrastructure services design considerations
SD-Access does not require any changes to existing infrastructure services, although fabric border devices have implemented capabilities to handle the DHCP relay functionality differences assisting fabric deployments. In a typical DHCP relay design, the unique gateway IP address determines the subnet address assignment for an endpoint, in addition to the location to which the DHCP server should direct the offered address. In a fabric overlay network, that gateway is not unique—the same anycast IP address exists across all fabric edge devices within an overlay. Without special handling either at the border or by the DHCP server itself, the DHCP offer returning from the DHCP server through the border may not be relayed to the correct fabric edge switch where the DHCP request originated