You could attempt to create a specific VLAN for guest users off the firewall and obviously control what they can talk to within your network from the firewall itself using firewall rules. That way you gain full visibility of Guest clients at the firewall.
Never the less, visibility of guest clients can be seen from the Mearki dashboard. IMO if you can implement security closer to the edge of the network the better. I'd stick with your Meraki Guest NAT SSID.
Eliot F | Simplifying IT with Cloud Solutions
Found this helpful? Give me some Kudos! (click on the little up-arrow below)