When I conduct my classes or labs I prefer to create an isolated network, the first thing we need is a DHCP server.
The other option would be to statically configure an ip address on each device and risk typos and duplicate addresses. Then there is issue of trying to assign static ip addresses to smartphones, tablets and IOT devices.
When though I used Cisco’s packet tracer in this video, I have configured a few 8 port fanless Cisco switches with DHCP with no issue.
In this video I walk you through how straightforward it is to configure a Cisco router as a DHCP server.
Enjoy.