Hello Everyone and thank you in advance for your insights. I am going to migrate our 2008R2 DHCP server scopes to our two 2016 DC with the intent of setting them up for failover, i.e. same scopes on both with one active and the other only taking over if the first one is down for some reason, e.g. server maintenance. This document outlines the Windows server side steps for DHCP failover (https://www.itprotoday.com/windows-78/configuring-dhcp-failover-windows-server-2016
) but I also need to adjust our core CISCO switch IP-Helper address. Currently it is only pointing to the single DHCP server, but how would we adjust it so it points to both new DHCP servers and let the servers handle the failover option, i.e. CISCO forwards to both servers and then on the Windows side the one that is 'active' responds as determined by the failover on Windows? I would assume that a failover on Windows DHCP is pointless if the Cisco only knows about one of the DHCP servers. Appreciate insights. Cheers.