I've got a number of Virtual Servers running at a pretty big Cloud provider. They are all running Windows 2008 R2. I have a CISCO ASA firewall in front of them. Currently, I've got all ports blocked except 80/443/21/3386 (for Remote Desktop).

I asked to have a VPN enabled on the firewall and they said it's easy to do BUT I need to use the 3rd party Cisco software. Now, I don't want to get into a debate about it .. but we don't want to install anything extra on our -client- computers.

We all use Windows 7 and we love using the built in VPN client to connect to other private LANS we have setup in other locations.

So i'm wondering what options I have to create a VPN tunnel to our private cloud LAN?

All our cloud servers are part of WORKGROUP, so there's no Active Directory .. nor do we want to install all that.

Secondly, we know we can open up a firewall port - so any ports for starting a VPN is fine!

Lastly, I was thinking of just using one of the existing servers as the VPN server (and using the Windows VPN software) .. but I'm not sure this is a good thing?

Remember -> we just want to use the baked in VPN software in Windows 7 .. which is PPTP or SSTP or L2TP/IPSEC. I would -LOVE- to use some free OSS software.

For usernames/passwords? We'd probably just have one account .. like U:Hithere P:whatever.. so we don't need any hardcore account management, like Active Directory, etc.

So does anyone have any ideas?