does anyone know how to make connection over UTMS/3G links. I mean, I have some remote zeroshell gateways (no ADSL, HDSL so far) and
I would like to connect it directly to another zeroshell gateway but using their UMTS/3G link. I guess they have to call the central number in order to
establish a PPP connection and than route the IP traffic between the end-points after the authentication. Is it possible? Does anyone already tested something?
To connect 2 remote LANs in bridged or routed link you have to establish a site to site VPN among 2 Zeroshell gateways. It does not matter how these gateways are connected to the WAN (xDSL or 3G), but the only requisite is that at least one of the two peers have a pubblic IP to become OpenVPN server.