Re: Objection to draft-ietf-6man-rfc4291bis-07.txt

JORDI PALET MARTINEZ <> Thu, 02 March 2017 18:55 UTC

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Date: Thu, 02 Mar 2017 19:54:49 +0100
Subject: Re: Objection to draft-ietf-6man-rfc4291bis-07.txt
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Thread-Topic: Objection to draft-ietf-6man-rfc4291bis-07.txt
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Actually, is not correct that most use /56 for residential.

>From my last review of the survey, worldwide, 22% use /48, 35% use /56, but there is a lot of ISPs (33%) doing it wrong and using /64, which of course, we are explaining them that is wrong. 10% use “other” sizes.

Full details at:


-----Mensaje original-----
De: ipv6 <> en nombre de Mikael Abrahamsson <>
Organización: People's Front Against WWW
Responder a: <>
Fecha: jueves, 2 de marzo de 2017, 19:33
Para: Alexandre Petrescu <>
CC: <>
Asunto: Re: Objection to draft-ietf-6man-rfc4291bis-07.txt

    On Thu, 2 Mar 2017, Alexandre Petrescu wrote:
    > YEs yes, but how much of that /44 is covering the end-users and how much 
    > is reserved for interconnnections?
    Nothing. It's /44 to the GGSN/SPGW.
    > Ah great, but I guess few cellular operators (if any?) are LIRs.  Or 
    > maybe that's true and I didnt know.
    You don't know.
    > If all this were that simple and clearcut - there are enough /64s out 
    > there - then why operators only assign one per one end user?
    Because DHCPv6-PD hasn't been implemented in mobile networks yet (that I 
    know of). So that's all they can do per 3GPP standards.
    Residential rollouts, most use /56 per customer.
    >From the RIRs, you can without further justification get /48 per "site", 
    so if you show up to RIR and you're LIR and you say "hello, I have 40 
    million customers and I want to give each customer a /48" then they'll 
    give you a /22 most likely. You're perfectly within your right as an 
    operator to deploy /48 per customer per current RIR rules that I am aware 
    Mikael Abrahamsson    email:
    IETF IPv6 working group mailing list
    Administrative Requests:

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