Which functionality is required within an IP router that is situated at the boundary of an IPv4 network and an IPv6 network to allow communication between IPv6-only and IPv4-only nodes?
Select the best response.
A.
Autoconfiguration
B.
Automatic 6to4 Tunnel
C.
Automatic 6to4 Relay
D.
Network Address Translator-Protocol Translator (NAT-PT)
E.
Intrasite Automatic Tunnel Address Protocol (ISATAP)