I don't have my guest network turned on currently, but I wanted to check something before I configure it. My Decos are in router mode so from what I've read, the guest network should be isolated from the main network. I also currently have device isolation turned on and applied to everything across the IoT network (almost).

So simple question, is the guest isolation a different VLAN to the device isolation? ie, would my setup be:

VLAN (network) + VLAN (guest, isolated devices)

or

VLAN (network) + VLAN (guest) + VLAN (isolated devices)?