I have an android 2.3 tablet featuring a host usb port. I also have a ethernet adapter that connects to usb.
My device supports ethernet facility as it is visible from settings menu.
Only problem is there is no way I can " create a connection" to my ISP using login details.
I dont have a router to translate wan to lan. Neither do i have a desktop/laptop/netbook.
I am not a geek but from the little knowledge I have I figure out it is only a matter of few lines of code or an app, till now I dont seem to have found.
It is far from trivial. Android doesn't natively support PPPoE, so you will need to build relevant code yourself, which is only doable on a rooted device. Additionally stock Android 2.3 doesn't support USB host mode. Does your tablet see the ethernet port when you connect it to USB? If so, you might have a chance. Otherwise invest in a cheap wireless router, all of them should support PPPoE.