I need to setup a site to site VPN between two location, one of the locations has my VPN appliance and ASA 5505 NAT-ed behind the ISP router
The NAT is a one to many NAT.
The Site to Site VPN will be an IPSEC vpn.
My questions is can i setup the point to point in these conditions? i'm pretty sure i will need to setup some port address translations if it can work, the question is which ports will i need?