Alcatel-Lucent 7450 ESS Series Configuration Manual page 46

DNS
The DNS client is extended to use IPv6 as transport and to handle the IPv6 address in the DNS
AAAA resource record from an IPv4 or IPv6 DNS server. An assigned name can be used instead
of an IPv6 address since IPv6 addresses are more difficult to remember than IPv4 addresses.
Page 46 7450 ESS OS Router Configuration Guide