When you combine these documents with a little architectural glue, you get an environment that lets existing v4 systems communicate on a v6 backbone. An edge router with this complement of software would provide a very reasonable transition for exiting v4 clients. And you can eliminate many of today's networking headaches. Benefits For example, administrators can choose to hide or expose network elements such as Web servers and databases to general Internet users, regardless of their physical location. Users can have simultaneous access to the Internet and private VPN resources automatically.
Service providers can deliver access-point devices that provide scalable services to home users.
They can also configure devices and services remotely from the head end, without rolling trucks. End users would have seamless multi-media communications, and when the Internet transitions to IPv6, there would be no change required to the devices behind the edge router. Finally, as IPv6 deploys to end nodes, no changes would be required at the edge routers.