27 Sep
2017
27 Sep
'17
7 a.m.
I had an ipv6-only lab environment cease being able to browse much of the internet on Monday. Tracked the issue down to google's public DNS64 service; the following queries should return DNS64 responses from the 64:9bff::/96 prefix, however, I'm getting 0 DNS64 answers from dig on both their servers for the last 60 hours: dig @2001:4860:4860::64 ipv4only.arpa AAAA dig @2001:4860:4860::6464 ipv4only.arpa AAAA DNS works fine, just not DNS64. A forum topic [0] suggests this behavior might be intermittent but no official response from google there. Is google's public DNS64 down for anyone else? [0] https://groups.google.com/d/topic/public-dns-discuss/dD_lSPfqXHA/discussion -- Joel Whitehouse