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VPNs

A VPN is a set of sites attached to a common network, but whose data is handled separately from that common network.

VPNs enable private IP traffic to travel over a public TCP/IP network by tunneling that traffic between VPN member sites. Different levels of security are available depending on the security of the tunnel used between sites.

Your router supports VPNs consisting of VRs or VRFs. SeeRFC 2547—BGP/MPLS VPNs (March 1999).. Additionally, your router supports tunnels built from GRE, IPSec, L2TP, MPLS, and tunnels built from layer 2 circuits, such as Frame Relay and ATM.

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