Currently we can integrate Windows DHCP servers with SolarWinds IPAM using WMI credentials. But if DHCP server is already monitored in SolarWinds platform using SolarWinds Agent, then we would expect the agent polling method should also work for IPAM. Unfortunately it is not supported at the moment and we get the below error message when we choose "Inherit Credentials" in order to use Agent on DHCP server for this integration.

There is also a similar feature request for DNS integration: https://thwack.solarwinds.com/product-forums/ip-address-manager-ipam/i/feature-requests/ipam-dns-server-polling-using-windows-agent-on-microsoft-dns-servers
I believe both can be implemented together to improve this functionality.