N2N Edge uses the Radio-part (IPSEC-VPN) protocol to tunnel X.509 public keys of VPN peers. It is a very secure (but unstable) peer-to-peer VPN solution, that supports open or exit policies, and a lot of other features.
Download N2N Edge_v.X here. It's also available for Mac OSX.
Please read the N2N Edge usage notes below, before you try to run 50e0806aeb latquit