The Choice: IPv4 Exhaustion or Transition to IPv6
jcurran at mail.com
Thu Jun 28 16:16:51 UTC 2007
For the first end site that has to connect via IPv6,
it will be very bad if there is not a base of IPv6
web/email sites already in place.
While there are going to efforts to recover unused
IPv4 space, we're currently going through 10 to 12
blocks of /8 size annually, so you may get an
additional year or two, but it doesn't change the end
There's no reason for end organizations to change
their existing IPv4 infrastructure, but they do need
to get their public facing servers reachable via IPv6.
Anyone who thinks that the ISP's community can
continue to grow using smaller and smaller pieces
of reclaimed IPv4 address space hasn't considered
the resulting routing table. We've build an entire
Internet based on the assumption that most new
end user sites are getting hierarchical, aggregatable
PA assignments. This assumption is soon to fail
until there's an option for connecting customers
up via new hierarchical address space.
Interoperability is achieved by having public facing
servers reachable via IPv4 and IPv6.
At 4:00 PM +0100 6/28/07, Stephen Wilcox wrote:
>Hmm I find this topic quite interesting.
>First is the belief that the Internet will suddenly break on the day when the last IP block is allocated by an RIR - the fact that most of the v4 space is currently not being announced may mean we have many years before there are real widespread shortages
>Second is the belief that this will prompt a migration to IPv6, as though moving to an entirely different and largely unsupported protocol stack is the logical thing to happen. Surely it is easier and far cheaper by use of existing technology for example for organisations to make efficient use of their public IPs and deploy NATs?
>As technology people we are looking at v6 as the clean bright future of IP, but the real world is driven by economics and I dont see v6 as being economically viable in the near future....
>I'm also yet to hear a convincing explanation of how v6 and v4 are expected to interoperate in a v4 internet that contains v6 islands...
>On Thu, Jun 28, 2007 at 10:33:25AM -0400, JORDI PALET MARTINEZ wrote:
>> I'm working on it ... But I think it will be really difficult to capture in
>> a couple of pages what the document try to explain !
>> > De: Iljitsch van Beijnum <iljitsch at muada.com>
>> > Responder a: <owner-nanog at merit.edu>
>> > Fecha: Thu, 28 Jun 2007 15:25:22 +0200
>> > Para: <jordi.palet at consulintel.es>
>> > CC: <nanog at nanog.org>
>> > Asunto: Re: The Choice: IPv4 Exhaustion or Transition to IPv6
>> > On 27-jun-2007, at 21:08, JORDI PALET MARTINEZ wrote:
>> >> I've published a document trying to analyze the IPv4 exhaustion
>> >> problem and
>> >> what is ahead of us, considering among others, changes in policies.
>> >> http://www.ipv6tf.org/index.php?page=news/newsroom&id=3004
>> > Ugh, a link to a page with a link...
>> > Do you have an executive summary for us?
>> The IPv6 Portal: http://www.ipv6tf.org
>> Bye 6Bone. Hi, IPv6 !
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