AP connectivity through Site to Site VPN's

rcolving

I have 3 sites that have TZ300's. One is a Main site with DHCP Range 192.168.0.x/24, the other two sites are connected through p2p VPN's each having a different DHCP Range. One has a range of 192.168.1.x/24 and the other has a range of 192.168.2.x/24. The all three sites have Ubiquiti AP's for wireless. The Main site has a Ubiquiti Cloud Key Gen2. I need to know what I need to do in the three firwalls so that the Ubiquiti Cloud Key in the Main site can communicate with the Ubiquiti AP's in the remote sites.

TKWITS

This is more of a Ubiquiti question than Sonicwall.

https://help.ui.com/hc/en-us/articles/204909754-UniFi-Network-Layer-3-Adoption