Bridge mode is not available, and it's not a hidden setting.
Best is Advanced DMZ, but it has it's own issues.
In my opinion, it's a better option to let the HH process the PPPOE packets, and use double NAT as opposed to use your own equipment to process PPPOE packets. Equipment that is efficient at processing PPPOE packets is far from common, and most equipment is not capable to process them past 1 gigabit speeds.
And I am not even mentioning the MTU difference between Ethernet and PPPOE packets, which in itself requires more processing.
The only way using your own equipment becomes more interesting is if Bell would drop PPPOE and switch to DHCP. I am thinking this is something they eventually will have to do due to the overhead of PPPOE and gigabit connections.
I am a Community All-Star and customer. I'm here to help by sharing my knowledge and experience. My views on Bell and the Community Forum are my own and not the views of Bell or any of its affiliates.