@johnpoz Yes, I managed a larger Cisco network many years ago when I worked. I run the same setup basically.
We all called it L3 switching back then. You are moving traffic from port to port in a switch. It just happens to be network to network. Routing does not fit. We used eigrp routing from routers and L3 switches. L3 switching seems to fit vs just routing because it is happening at line speed not like regular slow routing.
What would you call it to signify line speed routing? I think L3 switching works.
Yes, you get a lot of users thinking they are doing L3 but really, they are doing L2 switching. Most people don't understand L3 switching. You need to be more a Cisco person. And now with 10gig and greater NICs needing L3 switching is getting farther out than it was 20 years ago. But when you push the edge a router and a L2 switch will break down compared to using a L3 switch.
Oh, about your drawing mine is a little different my connecting L3 switch network is a VLAN port 192.168.0.2, not real IP address, but close which plugs into a NIC in Pfsense 192.168.0.1, VLAN not defined. So, both ports are defined in the same network 192.168.0.0/24. All network ports are defined as a VLAN but not the NIC which is not defined as a VLAN just regular IP address. Gateway for NIC IP address 192.168.0.1 is WAN. This I think is the default gateway on Pfsense but I am not sure as we are into the GUI and I am no expert on Pfsense.
Gateway for VLAN on switch is the VLAN gateway on the L3 switch. All local traffic is routed by my L3 switch. Unknown traffic is routed to Pfsense NIC 192.168.0.1 my defualt route on my L3 switch. There are Pfsense firewall rules that allow networks on my L3 switch to pass.
I don't use a network to pass traffic on. I did on an older Pfsense setup but I decided it was not need for me and my home. My way is easier to setup. You just add the L3 switch to the network and what ever DHCP IP address is assigned is used. So, when I got a new Cisco L3 switch I went this way. It is easier to change switches for me.
The best DHCP server I have used is Microsoft's DHCP server. We used it at work and I used it at home before I turned off my rack. I tought it worked well.