System and method for separating addresses from the delivery scheme in a virtual private network

A computer connected to a public-network infrastructure over which a private network operates, the private network having a plurality of nodes and uses a plurality of delivery schemes, the computer comprising:

• a memory comprising:
• one of the plurality of nodes for communicating over the private network;
• and
• a security layer that receives from the one node communications comprising internal addresses that are suitable for use in communicating within the private network that translates the internal addresses into external addresses that are suitable for use in communicating over the public-network infrastructure, wherein the internal addresses are not associated with the delivery scheme, that encrypts the communications, and that transmits the communications over the public network to destinations of the communications;
• and
• a processor for running the one node and the security layer.