I have an application which needs to authenticate via an online server, and it must use a static IP to do it.
I need to do it via a mobile connecting through a 3G connection, so static IP is out.
The only way I can see to do this is to create a VPN (eg using OpenVPN) and connect the laptop to that, then make the connection through that.
Since I'm not entirely sure how to do this, before I waste time trying it, can anyone give me a sanity check that this is the right approach?
The only thing that worries me to start with is that I'm going into the VPN and out again; normally when I use a VPN it's to connect to a network, not use it as a gateway.