ABSTRACT
You can set up VPNs in several ways, but Customer Premises Equipment (CPE)-based IP VPNs and network-based IP VPNs are the most common approaches. The difference lies in the network architecture: In CPE-based VPNs, the routing intelligence resides at an end-user site, while in carrier-based VPNs, it resides at the provider's edge, where it can be extended out to many end-user locations.
