Connecting to VPN from Unity3d

i need to connect to a vpn from my unity program to retrieve some information from an api.
how can i achieve this in unity. can someone direct me How i should proceed?(this is going to be a mobile application)

Thank you!

Hey, i can see you have asked this question way long back, but for anyone coming to the thread i think this link to Connect vpn To Unity could be helpful for the users.

Hi, I am looking for solution for same issue. I wants to connect given VPN server ( any supported server) from my Unity3d App,we are looking solution for same. Can we connect given vpn server using unity3d.