Ensure that you configure 6PE on PE routers participating in both the IPv4 cloud and IPv6 clouds.
BGP running on a PE router should establish (IPv4) neighborhood with BGP running on other PEs. Subsequently, it should advertise
the IPv6 prefixes learnt from the IPv6 table to the neighbors. The IPv6 prefixes advertised by BGP would automatically have
IPv4-encoded-IPv6 addresses as the nexthop-address in the advertisement.
To configure 6PE, complete the following steps: