PPPoE is like a "keyed front door"—you need to enter the username and password assigned by the operator to connect to the internet. Even if you change the router, simply re-entering the password can ...
I've got a DSL connection/modem that doesn't seem to play nicely with my AEBS. I used to have my network set up as follows: 77.xx.xx.xx 10.0.1.1 10.0.1.x DSL Modem --PPPoE--> AEBS(providing NAT/DHCP) ...