On 9/25/14, 12:28 PM, "Warren Kumari" <[email protected]> wrote:
>>There is additional operational complexity in running a dual-stack >>network, which implies some risk, but in my opinion it¹s not serious >>enough to be a real blocker for most networks. +1 >>It¹s a little weird to me that google¹s authoritative DNS servers are >>not addressable over v6. Their Google Public DNS service does operate >>over v6, so clearly they have the infrastructure in place. > >Google has been focusing on IPv6 for the user first -- for example, >the Google Public DNS stuff, the web interface, etc. Obviously enough, >this involved a bunch of infrastructure work... FWIW you can get to Comcast¹s auth servers via IPv6. When we did v6 on the recursive side we also did it on the authoritative side at roughly the same time. It took some upgrading of network equipment in order to get that to happen - so I suspect that may be a challenge for some other domains. As Warren also said, organizational / process inertia surely also plays a role. ; <<>> DiG 9.8.3-P1 <<>> @a.gtld-servers.net comcast.net ns ;; QUESTION SECTION: ;comcast.net. IN NS ;; AUTHORITY SECTION: comcast.net. 172800 IN NS dns101.comcast.net. comcast.net. 172800 IN NS dns102.comcast.net. comcast.net. 172800 IN NS dns103.comcast.net. comcast.net. 172800 IN NS dns104.comcast.net. comcast.net. 172800 IN NS dns105.comcast.net. ;; ADDITIONAL SECTION: dns101.comcast.net. 172800 IN AAAA 2001:558:fe23:8:69:252:250:103 dns101.comcast.net. 172800 IN A 69.252.250.103 dns102.comcast.net. 172800 IN AAAA 2001:558:1004:7:68:87:85:132 dns102.comcast.net. 172800 IN A 68.87.85.132 dns103.comcast.net. 172800 IN AAAA 2001:558:1014:c:68:87:76:228 dns103.comcast.net. 172800 IN A 68.87.76.228 dns104.comcast.net. 172800 IN AAAA 2001:558:100a:5:68:87:68:244 dns104.comcast.net. 172800 IN A 68.87.68.244 dns105.comcast.net. 172800 IN AAAA 2001:558:100e:5:68:87:72:244 dns105.comcast.net. 172800 IN A 68.87.72.244 _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
