Meraki MX Firewalls give you the option of configuring DCHP services, be it as a DHCP or as DCHP server. There are reasons why you should, or shouldn't run DCHP services on the FW, and it each argument has legit reasons. But most people agree that is safe to run DCHP on the MX firewall as long as it doesn't affect the overall network performance. And if your network is simple, you can have a working "full-blown" DHCP server on your Meraki MX in minutes.