Just got UniFi and am slowly trying to figure out how best to configure it!

Read about users with Apple AirPort Extreme routers having issues using the VLAN bridge method. Is it possible for me to configure the DIR-615 such that I only use it to do the dialing/connection and everything else (routing, NAT, wireless, etc.) is handled by the AirPort Extreme?

My thinking right now is that I'll have to change the configuration on the AirPort Extreme from PPPoE to Ethernet but how about the DIR-615?