So on the 'beurs' we had a small talk about iphones and vpn connections.
I've followed lots of tutorials, but the best spot to read is http://www.derman.com/blogs/Setting-Up-iOS-OnDemand-VPN
Basicly this wants you to make a certificate based trust, and use that as a profile that you have to install on your phone which uses the openvpn client.
So far i got it to work that whenever i am using a 192.168.x.x adres on the phone it will automaticly start openvpn client for me. The only thing that i did not get working was that it also drops the vpn after xx minutes. Even closing the apps that use it still doesn't matter. I have to turn it off manually and then only when i go to 192.x again it starts up.
Anyone feels lucky to dive in to this? Requires the openvpn client with a certificate (so no passwords) and a mac would be handy, since you can download the profile manager for it. (easy to make profiles then, and provision if needed)