Setting up a virtual private network

摘要

A method for setting up a VPN is described. The VPN is set up in a backbone network having a plurality of PE routers for controlling the transfer of IP traffic to and from CE routers in satellite networks. In a PE router, a VRF is configured for the VPN and populated with local routes for the VPN. A VRF IP loopback address is assigned for the VRF, and a PE IP loopback address is assigned for the ingress PE router. A local route with the VRF and PE IP loopback addresses is then advertised to other PE routers in the backbone network.

主权项

1. A method for setting up a Virtual Private Network ‘VPN” in a backbone network having a plurality of Provider Edge “PE” routers for controlling the transfer of IP traffic to and from Customer Edge “CE” routers in satellite networks, the method comprising:
in a PE router, configuring a Virtual Routing and Forwarding Table “VRF” for the VPN and populating the VRF with local routes for the VPN; assigning a PE IP Ioopback address for the PE router, assigning a VRF IP loopback address for the VRF; advertising a local route with the VRF loopback address and the PE IP Loopback address to other PE routers in the backbone network; encapsulating IP packets relating to the VPN; adding one or more encapsulation headers to each IP packet, the one or more encapsulation headers including the VRF loopback address and the PE IP loopback address; and forwarding the IP encapsulated packets through the backbone network.