Unconventional ISP hookup

[Guest]

Hi,
I have a unconventional mean to hook with my ISP and I need to know if pfSense will support me:

I have a wireless connection with my ISP.
This connection will give me a private, non routable, address in the 192.168.xxx.yyy range.
This connection will allow me to connect with my ISP's internal network but will not be NATted to the Internet.
I must use this connection to open an OpenVPN with a well defined server in the accessible range.
This VPN connection will give me a fixed and routable IP address which I can use with the internet; The VPN rules will take care to set this address as default gateway and I can completely forget about my other non-routable address.

Can I implement this scheme with pfSense?
I'm currently using a self-modified IPCop, but that will not allow for multiple RED interfaces.
I would like to add an HSDPA USB modem for failover.

Can someone tell me if this will work?
What should I install?
Can I install pfSense in a virtual machine (at least for testing)?

Thanks in Advance
ZioNemo

[GruensFroeschli]

http://forum.pfsense.org/index.php/topic,7001.0.html
–> http://devwiki.pfsense.org/OpenVPNasWAN