I am trying to setup an existing DSL-504T ADSL router to work as a dumb modem for a DIR-825 wifi router. I am assuming I should try and move as much of the control to the DIR-825 as possible. It's a PPPoA connection so I don't think I can use bridge mode.
Does anyone have any guidance on this? Should I have 2 subnets? Should I set the DIR-825 as the DMZ on the DSL-504T? Do I need to keep NAT and firewall enabled on DSL-504T?
Basically I have it working but want to know if I have set it up correctly as I really want the QoS to work on the DIR-825.