I am new to Meraki firewalls. I am in the process of configuring a template for our MX84 that is on order. What I am trying to figure out and I have read the online documentation is setting up a VLAN with a unique subnet. I see how to do that under Addressing and VLANs. What I am trying to determine is, what is the purpose of this. I currently use pfSense for my firewalls and I didn't have to do anything like that. I used IPSEC and pointed to the subnets at each end that I wanted to be able to converse.