Last Chance Rush -- was "Five Security Flaws in IPv6"
Carlos Friacas
cfriacas at fccn.pt
Fri May 11 08:46:33 CEST 2007
On Fri, 11 May 2007, Geoff Huston wrote:
> At 01:13 AM 11/05/2007, Nick Hilliard wrote:
>> Geoff Huston wrote:
>>> As the amount of remaining addresses space that these models look at
>>> diminish in size, then the degree of possible variance in the modelling
>>> exercise also diminishes - i.e. the convergence of these predictive models
>>> is also a relatively strong signal that this is no longer a long range
>>> prediction with high levels of potential variance, but is now working as a
>>> short term prediction with very limited potential variance.
>>
>> It might be more accurate to say that the upper bounds of the address pool
>> sizes can be predicted more accurately as time goes by. Your model does
>> not take into account a possible stampede near the end.
>
>
> Actually a quadratic model may better equipped to model the characteristics
> of a last chance rush than an exponential growth model using least squares
> best fit curve fitting algorithms, but, yes, its still probably too
> conservative. So you comment appears to be that even this model is perhaps
> too conservative. Fair enough. What does that observation imply to a
> projected IANA pool exhaustion date then?
>
> regards,
>
> Geoff
Hi,
My view can be somewhat biased because i'm running dual-stack for some
years now........... but this "last chance rush" thing doesn't clearly
show anyone that the _public_ IPv4 Internet's GROWTH is doomed ???
Yesterday I've once more listenned to the "what can a small/mid-sized
company gain by going into IPv6?" question. For me the answer is still
"...a continuously growing Internet and potentially more customers!", but
this argument isn't really convincing the majority. :-(
In the end, addressing is still an ISP issue. And if ISPs don't push
it, they will reach the point where they will have to explain customer B
that customer A has its public addresses, but customer B will have to live
only with NAT -- bad luck, the world can be unfair now and then.
At this point i can easily see that IPv6 is still a drop in the ocean,
and as IPv4 available blocks are going down the drain, ISPs should
already be on top of it... :-(
Flames welcomed.
Best Regards,
-------------------------------------------------------------------------
Carlos Friac,as See:
Wide Area Network Working Group (WAN) www.gigapix.pt
FCCN - Fundacao para a Computacao Cientifica Nacional www.ipv6.eu
Av. do Brasil, n.101 www.6diss.org
1700-066 Lisboa, Portugal, Europe www.geant2.net
Tel: +351 218440100 Fax: +351 218472167
www.fccn.pt
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The end is near........ see http://www.potaroo.net/tools/ipv4
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