Re: Assigning IPv6 /48's to CPE's?

From: Christopher Morrow (no email)
Date: Wed Jan 02 2008 - 00:35:04 EST

  • Next message: Christopher Morrow: "Re: v6 subnet size for DSL & leased line customers"

    On Jan 1, 2008 12:46 PM, James Hess <> wrote:

    > The place where major problems could be run into is deciding how big a
    > block your ISPs and
    > LIRs get, or if the registries are entertaining the concept of PI
    > space for v6.. how large

    too late NRO policy comparison chart:

    http://www.nro.net/documents/nro45.html#3-4-3

    Specifically APNIC and ARIN have /48 end-user assignments (PI)
    policies in place, RIPE is still discussing this policy as of the last
    meeting (if I recall correctly).

    > those blocks are. Does a small ISP ever get such a small block that
    > they may run out of /48s
    > to assign?

    Sure, if they mis-plan or over-sell or acquire a competitor... there
    are many scenarios that could include this sort of event.

    >
    > Does a large ISP ever get such a large block, the RIRs may run out of
    > ISP blocks to assign?
    >

    At one point DISA/DoD was looking to get a /10 from <SOME RIR> ... I
    don't that went anywhere, or is still under discussion. That'd
    certainly make a dent in the available space though, eh?

    > to networks, which is very bad: design of IPv6 is supposed to avoid
    > such things.

    The initial design requirements/assumptions you mean, most of which
    don't apply to today's world?

    >
    > In the latter case... IPv6 IP addresses have not been 'exhausted',
    > but now, there can now
    > be no new ISPs or PI allocations; everything having been assigned to
    > some major provider
    > who has not given out very many of their /48s yet,
    >
    > or who is giving out /56s and hording the rest of the address space,
    > never to be assigned.....
    >

    ah, just like in ipv4 come mid-2010 ? wither ipv8?

    -Chris


  • Next message: Christopher Morrow: "Re: v6 subnet size for DSL & leased line customers"





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