Dear network administrators,
Five years ago, in celebration of World IPv6 Day, we announced support for querying Google Public DNS over IPv6. Today, we are pleased to announce additional support for public DNS64.
Administrators of IPv6-only networks can combine this with locally-provided NAT64 using the well-known prefix 64:ff9b::/96 to reach public IPv4-only sites from IPv6-only networks.
Simply replace the current Google Public DNS IPv6 addresses (2001:4860:4860::8888 and 8844) with the Google Public DNS64 IPv6 addresses:
2001:4860:4860::64
2001:4860:4860::6464
to receive synthesized AAAA (and PTR) records with the 64:ff9b::/96 prefix.
This service is not suitable for networks without a NAT64 gateway that uses 64:ff9b::/96. This service does not provide access to private domains that cannot be resolved from the public Internet. This service is not necessary for dual-stack networks or hosts.
More information is available at https://developers.google.com/speed/public-dns/docs/dns64.
Happy IPv6 transitioning,
(Erik Kline and) the Google Public DNS team