I'm trying to setup a Ubuntu system with VPN to either RaptorVPN or iPredator. It's behind a Tomato 1.28 router which is behind the cable modem. The log says that an initial connection is made but 30 seconds later LCP: timeout sending Config-Requests and the connection is torn down. I wonder whether the router isn't passing along some special type of packet. On the Tomato side I've tried with GRE/PPTP unchecked and checked, didn't seem to make any difference. I've also configured the router to forward port 1723 to this computer. Got any ideas on making this work?