Hi i Have 3 isp lines with ppoe and i try to create a policy baced routing but i cant figure out how to select a gateway as all the lines has the same subnet . So its impossible for me to drive traffic through different connections. When default route add mt automatically select the interface by it self 
If you have 3 PPPoE clients to the same PPPoE server, load balancing over them will not work correctly, all data will be routed via first established PPPoE tunnel.