Hi,
Second case, site to site VPN over 3G on one side, no fixed IP and subnet on that side.

Since I have a DDWRT router (3500L), I might try wifi bridging and use openvpn client abilities from said router and push his lan route rather than the 3G one. But I'm a noob in all network related subjects...


Thanks for the links, I'll check that probably over next week-end.