Need help on topology design

also, i was bored at work, so i have made you a diagram showing how i would connect your devices.

I would connect everything (your ISP, all the interfaces on your firewall and router) to the switch, then use VLAN's on the switch to segregate everything. This is how it is usually done in a larger enterprise network, and would give you good practice on configuring VLAN's and working with trunks/802.1q



this will also allow you to have a seperate LAN segment for a DMZ if required.