[ppml] IPv6 addressing plans
owen at delong.com
Tue Sep 4 10:45:29 EDT 2007
I would tend to think that the correct answer would depend a lot on
topology and how those segments connect to the internet.
If they are a single contiguous autonomous system with a consistent
policy, then, it makes sense to advertise an aggregate and accept
it is presented. OTOH, if you need to manage the arrival location of
on a continental or other topological basis, then, it probably makes
sense to get separate assignments accordingly.
I don't think there is a good one-size-fits all BCP answer to your
On Sep 4, 2007, at 5:15 AM, <michael.dillon at bt.com>
<michael.dillon at bt.com> wrote:
> Does anyone have any reasoning why a network spanning two or more
> of the
> RIR regions, should or should not get separate ISP allocations from
> I'm not just interested in opinions, but also the reasoning behind
> especially any technical pros and cons.
> In addition, are there any characteristics that define a good IPv6
> addressing plan for a network operator?
> We've just received an IPv6 /22 from RIPE based solely on
> projections in
> our European network infrastructure. Fairly soon we will have to
> whether to internally assign chunks of that space to our North
> network or to go to ARIN for a separate IPv6 allocation based on North
> American needs only.
> I imagine that a number of other companies are in this position and if
> there is actually a best practice for IPv6 addressing, it would be
> to document it and follow it before deployment gets much further
> On the other hand, if it is a coin-toss scenario from a technical
> of view, it would be nice to see general acknowledgement of that fact.
> --Michael Dillon
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