Hi.. I have an openvpn connection to a remote vpn (tun0) and am running a pptp server (pptp0) on my computer. I'd like any connected pptp client's traffic to route through the openvpn connection like the computer in question would do if you were sitting in front of it. Now, I can get this to work just fine if I open a pptp connection from my android phone when i'm connected to my lan. When I disable my wifi and go over the 4g network a connection can't even be established with pptp and nothing gets logged in syslog. If I stop the openvpn connection and tun0 goes down I can connect from my android on the 4g network fine (but of course it won't route out my stopped openvpn connection).
My lan is on a 192.168.x.x subnet, pptpd assigns clients an ip on the same subnet, and the openvpn connection gets a 10.10.1.x ip from the openvpn server it is connecting to.
Anybody know how to accomplish this or can help?