Layer 3 VPN Configuration Examples

The examples in this chapter show only the portions of the configuration that establish VPN functionality. You must also configure other router functionality, including all router interfaces, for a router configuration to work properly.

This chapter provides the following examples of Layer 3 virtual private network (VPN) configurations:

• Configuring a Simple Full-Mesh VPN Topology
• Configuring a Full-Mesh VPN Topology with Route Reflectors
• Configuring Hub-and-Spoke VPN Topologies: One Interface
• Configuring Hub-and-Spoke VPN Topologies: Two Interfaces
• Configuring an LDP-over-RSVP VPN Topology
• Configuring an Application-Based Layer 3 VPN Topology
• Configuring an OSPF Domain ID for a Layer 3 VPN
• Configuring Overlapping VPNs Using Routing Table Groups
• Configuring Overlapping VPNs Using Automatic Route Export
• Configuring a GRE Tunnel Interface Between PE Routers
• Configuring a GRE Tunnel Interface Between a PE and CE Router
• Configuring an ES Tunnel Interface Between a PE and CE Router

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