We want to connect two building with AP1300 series. Both location have firewall with different ip class and we are going to configure site-to-site vpn between two locations.
Could we implement root - nonroot bridge mode ? or what we supposed to use ?
Wireless bridges provide a L2 connection, so in order to connect two different networks you'll need to make sure that the L3 configuration is behind the bridges. Think of it as if you're connecting your two switches together with a trunk connection.
You're correct that you'll configure one bridge as the root and another as the non-root.