I am a newbie in opensuse and i am unable to configure pppoe settings for dsl connection. I tried by yast but was unable to configure. Can anybody please help me out by giving me a step by step configuration process in details.
Have a look here: http://forums.opensuse.org/how-faq-read-only/unreviewed-how-faq/387217-default-how-configure-pppoe-broadband-internet-connec.html
or here: How-to configure a PPPoE Broadband Internet Connection in OpenSuSE 11.0 - Digit Technology Discussion Forum
It’s for 11.0 but things did not change that much.
Cheers.
… Or with KNetworkmanager some hints: Chapter
See how to enable or disable it here: Chapter
More documentation about opensuse here: Reference
Cheers.
Thanks ghostintheruins I will check out the links and try.
Hey ghostintheruins I tried one of your links and it worked. I never thought it could be that easy. I way trying to configure pppoe for last 1 day. I am so grateful to you for providing me the links. Thank you once again.
I am glad it worked for you. 
I would suggest to bookmark those and try and read more about your new OS. 
Cheers.