Terry_C,
We implement MR33 and MR74 in our wireless environment, and have a corp-wireless and a seperate SSID for guest. It's straight forward to do from the Dashboard side, the corp-wireless is put back onto the wired network, while guest-wireless is isolated on the 10.x.x.x/8. Only caveat I would say is if your network is using the class A subnet, you could potentially run into a conflict, but that's rare (MR assign a random IP based on an algorithm).
https://documentation.meraki.com/MR/WiFi_Basics_and_Best_Practices/Configuring_Simple_Guest_and_Inte...
Hope it helps,
nwu1
