Layer 3 VPN Configuration Examples

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 a Hub-and-Spoke VPN Topology
• 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
  

  NOTE: 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.