I have a VPN server running and all is fine for Windows clients. We have a consultant using a Mac who would like to connect. His options are L2TP with IPSEC, PPTP, and IPSEC.
So my question is, what is the best and most secure way to get him to connect. I checked and we don't currently have a IPSEC shared secret setup so I am guessing I could enable that or choose one of the other two options but I wanted to get some suggestions.