Normally my choice for VPN is OpenVPN which I have successfully setup before. However on iOS that is not a choice. I only see L2TP, PPTP and IPSec so I guess that I will have to learn a new way to setup a VPN.
None of those options is listed in Macports, hence I guess it is just a matter of more custom hacks.
I would like to know which one of those alternatives is easier to install on a Mac (as a server). Just for personal use, hence the most basic setup would be enough.
NOTE: Normally I avoid the trouble of setting up a VPN server and use a ssh tunnel for the server/port I want. But that seems out of question on iOS