A.Quality of Service
B.Trunk configuration
C.Access lists
D.Routing protocol configuration
E.Power over Ethernet
F.DHCP configuration

A.Create an IPv4 tunnel and assign the tunnel IPv6 addresses
B.Create IPv4 interfaces on both ends of the network， and use either static routes or a routingprocess to direct IPv6 packets through those interfaces
C.IPv6 packets cannot be encapsulated with IPv4 headers because the addresses are notcompatible
D.Create IFV6 interfaces on both ends of the network， and use static routes to point the IPv4address to those interfaces
E.Use an IPv6 routing protocol like OSPFv3 and assign IPv4 packets to that process
F.Create an IPv4 tunnel and use the tunnel mode ipv6ip command