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?
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)
Explanation:
Reference:
http://www.cisco.com/en/US/prod/collateral/iosswrel/ps8802/ps6969/ps1835/prod_white_paper091
86a008011ff51.html (Introduction, see 4th para)