@neiliob1973 “The best solution” depends on your situation. In a perfect world, you shut down other DHCP servers and let FOG handle it all and it will work out of the box basically.
However due to policies, preferences or certain restrictions sometimes you are stuck with another DHCP server, this is where dnsmasq comes in with proxy mode. (basically piggybacks the other DHCP server and sends only the PXE boot info)
I do think this may struggle or not work as expected if the original DHCP server is also sending PXE boot info, from what I remember anyway. And certain clients for some reason don’t like it very much either.