[190422] in North American Network Operators' Group
Re: IPv6 deployment excuses
daemon@ATHENA.MIT.EDU (Mark Andrews)
Mon Jul 4 09:49:22 2016
X-Original-To: nanog@nanog.org
To: Matt Hoppes <mattlists@rivervalleyinternet.net>
From: Mark Andrews <marka@isc.org>
In-reply-to: Your message of "Mon, 04 Jul 2016 08:44:10 -0400."
<B9CDA0F3-AE6F-435D-9904-C2AE05BCCCCB@rivervalleyinternet.net>
Date: Mon, 04 Jul 2016 23:49:11 +1000
Cc: Tore Anderson <tore@fud.no>, "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
In message <B9CDA0F3-AE6F-435D-9904-C2AE05BCCCCB@rivervalleyinternet.net>, Matt
Hoppes writes:
> I disagree. Any data center or hosting provider is going to continue to
> offer IPv4 lest they island themselves from subscribers who have IPv4
> only - which no data center is going to do.
>
> One can not run IPv6 only because there are sites that are only IPv4.
>
> Thus, as an ISP you can safely continue to run IPv4. Ipv4 won't be going
> away for at least ten years or more - if ever.
>
> I'm not saying don't be ready for IPv6. I'm not saying don't understand
> how it works. But doomsday isn't here.
There are ISP's that are essentially IPv6 only today as they do not
have enough IPv4 addresses to give all their customers a public
IPv4 address.
Once you need to run a GGN you may as well run DS-Lite, MAP* or
(shudder) DNS64/NAT64 as NAT444. There is no need to talk IPv4 to
your customers today. You still need a small number of IPv4 address
to talk to legacy IPv4 servers on the internet. Just because there
owners don't know they are legacy servers doesn't mean they aren't.
Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka@isc.org
