O'Reilly logo

Juniper Networks® Field Guide and Reference by Juniper Networks®, Cris Morris, Gary Drenan, Aviva Garrett

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

VPN Concepts

A VPN consists of two topological areas, the provider's network and the customer's network. The provider's network, which runs across the public Internet infrastructure, consists of routers that provide VPN services to a customer's network as well as routers that provide other services. The customer's network is commonly located at multiple physical sites. The provider's network acts to connect the various customer sites in what appears to the customer and the provider to be a private network. To ensure that VPNs remain private and isolated from other VPNs and from the public Internet, the provider's network maintains policies that keep routing information from different VPNs separate. A provider can service multiple VPNs as long ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required