I just need a "temporary" pppoe server, that only uses PAP
___Can someone post a howto, just in a few lines, what to do?[...]
You have posted this at least to three groups (centos, fedora, ubuntu). No-one here should waste time in answering your mail extensive.
Maybe he just needs a quick answer. I never knew there were limits to who you can ask or what forums you can visit or the mailing lists you can use.
What are you doing reading all those mailing lists, hmm?