How to solve this problem?
When you has two DSL links from the same ISP and the modems are in bridge mode, i.e, the RB establishes a PPPoE section directly with the ISP, both links get the same default gateway. This means that your load balancing logic will not work properly because the routing logic will choose arbitrarily one of the links once both get to the same gateway. How to fix this keeping the modems in bridge mode?