The video demonstrates an ability to transport IPv6 traffic across a Cisco IPv4 MPLS network. Comparing to other IPv6 IP-based tunnelling technologies, you will see that 6PE is simpler to setup and understand as IPv6 route advertisement is natively supported by MPBGP and the solution is very similar to MPLS VPN. Our configuration will be concentrated on the PE routers as they are required to run dual-stack. The P router, however, requires no modification as you will see in this lab.