@Indy122 

Hey

Smart Switches can act as a DHCP Relay, but not as a DHCP server (see image below).  Generally DHCP server is only a feature on higher end layer3 switches. 

You would require an external DHCP server, be that a router or gateway.. something like the TL-R065 or your ISP provided router.

@Philbert 

Thanks for your answer. Is DHCP relay a pass through to an existing DHCP server?

Best regards,

Indy

@Indy122 

In a matter of speaking yes... its a copy of the DHCP server database that acts as a middle man in larger networks, rather than the clients talking to the DHCP server it will ask the relay for an address and the relay will update the DHCP server as to that address being handed out.

Its basically a middle man between the client and the DHCP server; ultimately so the client and server never have to talk directly.