Hi all,
I have rb951-2nhd with ether1 working as WAN with pppoe-client, but i'd like to use that same interface as LAN also. If i bridge ether1 with ether2-master, the masquerade NAT on pppoe-out1 doesn't work. how can i do that?

The bridge is now the master interface so you will change the NAT rule to read out-interface=bridge.