Actually I was worried by the 404 error logs and the hell of 'File does not exist' log entries spewn by Apache on my server. I had done all sorts of hacks, like the one Redirect Worms Away by Richard Lowe, Jr. But it did not serve my purpose.
I was worried with the Sep 30 17:32:39 devone sshd[6601]: Failed password for marc from 192.168.0.140 port 1044 ssh2 messages in the /var/log/secure ...
Any one would be wondering what is behind connecting the BSNL Dataone through linux, since it is just pppoe. I would say it was simple but took around a month before I was satisfied with the setup. I would like to share my experience.