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Re: IPv6 prefix lengths - how long?

JORDI PALET MARTINEZ <jordi.palet@consulintel.es> Tue, 11 June 2019 07:33 UTC

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Date: Tue, 11 Jun 2019 09:32:53 +0200
Subject: Re: IPv6 prefix lengths - how long?
From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
To: Fred Baker <fredbaker.ietf@gmail.com>, "Manfredi (US), Albert E" <albert.e.manfredi@boeing.com>
CC: 6man WG <ipv6@ietf.org>
Message-ID: <06711134-C76B-45C6-845F-7FA62E738543@consulintel.es>
Thread-Topic: IPv6 prefix lengths - how long?
References: <ee811897e2d2438e9c3592012b725ac3@boeing.com> <CAO42Z2xyenxV+z58VW_h4skbWz14hyVt2pUd32tLZ826UoZKZA@mail.gmail.com> <9826C993-3670-4D7B-8709-B3FDE2A79359@gmail.com> <EEBC9697-18A1-41DF-95FB-33D0F5098620@consultant.com> <CABNhwV2fX9LrwzuJX297CoF1XNNM2U=m22QSVWEtaS9PQkM3Dg@mail.gmail.com> <CABNhwV3hA27hmdi4+WfK5ZhNPvta_d9anZA0+TJ2Uuj78kx4Cg@mail.gmail.com> <CABNhwV0rOT461e2Oc0S6e_fK_2zaLQ7Wk5sCFJCFO3xqeH2a9g@mail.gmail.com> <bd98b965334c43969b9f29662e7993b8@boeing.com> <CAO42Z2yz1vZGz0bnhfyOuoqNGcP8RFfgYV0P0LGXW7of5SSzBA@mail.gmail.com> <2df5b0bb7e8e43c594de501b38e9cfef@boeing.com> <96BC6316-424C-49E5-89FF-1631831E97CC@gmail.com>
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Hi Fred,


El 11/6/19 6:52, "ipv6 en nombre de Fred Baker" <ipv6-bounces@ietf.org en nombre de fredbaker.ietf@gmail.com> escribió:

    
    
    > On Jun 10, 2019, at 6:20 PM, Manfredi (US), Albert E <albert.e.manfredi@boeing.com> wrote:
    > 
    > We’ve been around and around on this. Today’s reality is that households and devices are being provided, in many cases, with only a /64. Therefore, unless the households or devices are happy with a flat address space inside their /64, prefix, they would need to be assigned more /64 prefixes.
    
    My understanding, from a number of ISP sources, is that the ISP gives the user what s/he asks for. In many cases, that is a /64.

-> My experience is on the other way around. Most of the time ISPs have either:
1) A default prefix assignment size for customers, and they not allow to change it.
2) A default prefix assignment size for customers, and they allow to change it to another size, for a cost (for example from /56 to /48).
3) A different prefix assignment size depending on if you're a residential or business customers. If you want to change, even if the "link" is the same, you pay a very different price (example around 40 Euros in Spain for residential customers, while it is 200 Euros for a business customer, in both cases a 100/100 Mbit GPON).
    
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