Question to Google

Mark Andrews marka at isc.org
Mon May 15 12:30:52 UTC 2017


In message <e7a248b9-61a7-5a8a-4af9-283fb5c29389 at forfun.net>, "Marco Davids (Pr
ivate)" writes:
>
> Hi,
>
> Anyone knows why coogle.com only have IPv4-adresses on their
> authoritative DNS?
>
> https://ip6.nl/#!google.com
>
> Are there any plans to fix this?
>
> --
> Marco

Lorenzo's reply to this statement

	Google isn't reachable.   There are no IPv6 servers for google.com.

was 

	Unfortunately, every time we've looked at the data, the
	conclusion has been that it would cause unwarranted user
	impact. IIRC the most recent blocker was a major US ISP
	whose clients would experience breakage if even just one
	NS record was dual-stacked. It's not an infrastructure
	problem: the servers have supported IPv6 for years, and
	some zones like google.fi do have IPv6 NS records.

See Message-ID: <CAKD1Yr2C3E1j9YZ+zsXWF_+A0-6FgckvijgAiJiTnFxUHxDWUQ at mail.gmail.com>


-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org


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