what vpn type is best for lan to internet

[giftslayer]

hi i basically want to know what vpn i should use bc i am trying to set one up but it seams that when i do that my freand is gowing thro the internet to my network and then back to the internet making the ping from him to me leas but the ping to the internet is more so what should i use to get vpn from me to him for file sharing and lan gaming and still have no effect on internet ping

 

basically i want a just a connection from me to him but he stile uses his internet for internet not gowing thro my internet back to the internet

 

i have my own vpn router

 

i can chose from async l2tp ovpn pptp sstp

 

(hope that makes sense)