A. On the CE router, PE neighbors must be configured in the VRF context on the CE router
B. On PE routers, the CE IBGP neighbors are configured in the global BGP configuration
C. On PE routers, the CE EBGP neighbors are configured in the VRF context
D. A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors

A. EIGRP can be used only as the PE-CE routing protocol if the PE and CE routers are in the same AS
B. Other EIGRP AS routes are automatically advertised to the CE router and do not require a redistribution configuration command to be configured
C. Unlike other routing protocols that are used between PE and CE routers, EIGRP supports backdoor links
D. Configure of the VPN is only required on the PE router