[LAC-TF] Sesion en IETF 95 (ERA: Re: implicaciones de declarar IPv4 historico)

JORDI PALET MARTINEZ jordi.palet at consulintel.es
Wed Apr 6 20:21:14 BRT 2016

Hi Fernando,

I think we need to avoid confusing people.

Deprecating IPv4 doesn’t means that it can’t be used anymore. It means that we want to make sure people start thinking in IPv6, using it as much as possible and using IPv4 as less as possible.

It also means that new features will not be developed for IPv4 and possibly bugs at the protocol level (if discovered) will not be sorted out.

Nobody will disconnect you from IPv4 now, but sooner or later it may happen.

Is like analogue and digital TV, of course, at the end, you will get disconnected from analogue TV, but you will be able to have devices that still get you working on Internet, such as the CPE performing some transition (464XLAT, for example). This is normal life cycle for everything in the world !


-----Mensaje original-----
De: LACTF <lactf-bounces at lacnic.net> en nombre de Fernando Gont <fgont at si6networks.com>
Responder a: <lactf at lac.ipv6tf.org>
Fecha: miércoles, 6 de abril de 2016, 20:08
Para: <lactf at lac.ipv6tf.org>
Asunto: Re: [LAC-TF] Sesion en IETF 95 (ERA: Re: implicaciones de declarar IPv4 historico)

>On 04/06/2016 07:10 PM, Howard, Lee wrote:
>> Cómo no es prime-time?
>> What is missing? This draft document would only have affected IETF
>> process, but if there are gaps the IETF needs to cover first, what still
>> needs to be done?
>With respect to deprecating IPv4, I'd say that IPv6 and IPv4 are really
>two different protocols -- not really versions that could e.g. be
>interoperable (i.e., v6 being backwards compatible). So in that sense
>I'm not sure to what extent it can be argued that IPv6 is a new version
>of IPv4 (yes, both are called IP, but that's it).
>Nowadays, you cannot really prefer one protocol over the other, for the
>simple reason that IPv6 is not as widespread as one would like it to be.
>There are lots of deployed devices that simply do not support it.
>In that respect, declaring IPv6 historic is in a sense, saying that the
>Internet is running on an historic protocol, or pretending that you can
>switch to that protocol, when in many cases, you simply can't
>Regarding IPv6 being prime-time, there are issues when it comes to
>implementations. Both in terms of host/uter implementations, and other
>devices such as firewalls e.g., see:
>(videos and stuff available at: <http://www.ipv6hackers.org>). (think
>about NIDS etc support for IPv6 etc., too).
>The above does not mean that you cannot deploy today. But rather that we
>really still rely on IPv4, there are devices and boxes that will
>probably continue to do ipv4-only for the rest of their lifetime, and
>there scenarios for which if you really wanted to do 6, you'd have a
>hard time.
>P.S.: Thanks for joining this list. That's appreciated!
>Fernando Gont
>SI6 Networks
>e-mail: fgont at si6networks.com
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