OpenGGSN

Hi Does this mailinglist also regard openGGSN? If so do I have some questions. I have problem setting it up correctly. Does anyone have a configuration file for both ggsn and sgsnemu that works? Which flags are necessary to use and what should they be set to? I understand it can differ based on IP addresses and similar, but can someone please help? I'm using this program for my master thesis. Regards Terje Kristoffer H. Skow