| John,
Bob
 On Mar 9, 2021, at 12:43 PM, Baird, John M CTR OSD HPCMP (USA) <john.m.baird10.ctr=40mail.mil@xxxxxxxxxxxxxx> wrote:
Brian,
Thanks for the quick response. You mention the Firefox "six or not" extension, and that is why I asked the question about IPv6 and IETF websites.
When I browse the websites you cited, and also https://tools.ietf.org, IPvFoo lists several IPv4 addresses, but makes no mention of any IPv6 addresses.
I can see the IPv6 addresses in DNS, but for some reason IPvFoo reports that the websites respond to web browsers only via IPv4.
Any theories as to why this is so?
John
-----Original Message-----
From: Brian E Carpenter <brian.e.carpenter@xxxxxxxxx>
Sent: Monday, March 8, 2021 10:57 PM
To: Baird, John M CTR OSD HPCMP (USA) <john.m.baird10.ctr@xxxxxxxx>
Cc: ietf@xxxxxxxx
Subject: [Non-DoD Source] Re: question: are the various IETF web sites IPv6 enabled? If not, why not?
----
On 09-Mar-21 16:30, John Levine wrote:
In article <4CC47F19-3063-430F-8378-B00EB7E2708F@xxxxxxxxx> you write:
-=-=-=-=-=-
It is my understanding that they all are, and have been for some
time. I might suggest that you ping6 (or ping -6 depending on your OS) to see whether you get a response.
Yes, they all are. The mail is, too.
Caution-https://www.irtf.org/ too.
Caution-https://www.rfc-editor.org/ too.
Caution-https://www.internetsociety.org/ too.
The "six or not" FireFox extension tells me that the ISOC site invokes a couple of IPv4 services, so needs dual stack. The IETF site is clean in that regard.
Brian
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