Yesterday tested my fortitude in staying with Xubuntu. The router simply didn't work, and any attempts to fix the problem led nowhere. The Linksys website had no idea what my problem was, and I figured that 2 1/2 years is long enough for a router to have served faithfully. (Our tech supplier agreed: it was time for the router to retire.)
So there I was, without a router, hence no automatic way to connect to the internet. The XP box could connect easily, with the Internet Connection Wizard. But how about my XubuntuBox?
A search in the forums yielded an answer: pppoe & pppoeconf. Now, a minute later, I'm connected!
pon dsl-provider to connect,
poff dsl-provider to disconnect,
plog for status.
No sweat. :)