I just did a clean install of OpenSuse 10.0 RC1 and found that the pptpclient didn't work. It worked fine with a Fedora Core 3 installation earlier.
I followed the instructions for Suse on the pptpclient web page. The installation of the packages went OK and I am able to establish a connection (as seen from the pptp client message log). But the ping test fails. I checked:
1) The firewall is off
2) The routing table looks fine (same as the earlier machine)
3) The tunnel reports some traffic  in the pptp log window with packet counts increasing in both directions - but the ping test fails.
Any ideas?

Yahoo! for Good
Click here to donate to the Hurricane Katrina relief effort.