Where is the config file for PPPoE?

Hi there I am experiencing some problems with my DSL connection, and my ISP want me to mail them the config file for my PPPoE setup. I can find the settings in YaST, but where is the config file itself? My system is running SuSE Linux 9.1. Janus -- Roskilde University, Denmark. Department of Technology and Social Science. International Development Studies. ESST - Society, Science and Technology in Europe.