Layer 3 VPN Configuration Examples

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

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

  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.