Microsoft PPTP VPN and Susefirewall2
How do I get these two working together without additional tools like pptpproxy? That was a question I had for a long time and finally there is a solution. On a forum, I found a post that allows GRE connections through the default openSUSE firewall. So here is the working configuration for my openSUSE 10.2 with Microsoft Small Business Server 2003.