nanog mailing list archives

Re: Dual stack IPv6 for IPv4 depletion


From: Mike Hammett <nanog () ics-il net>
Date: Thu, 9 Jul 2015 08:04:00 -0500 (CDT)

Don't confuse someone's poor design with design goals. 




----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 



Midwest Internet Exchange 
http://www.midwest-ix.com 


----- Original Message -----

From: "Dave Taht" <dave.taht () gmail com> 
To: "Karl Auer" <kauer () biplane com au> 
Cc: "NANOG" <nanog () nanog org> 
Sent: Wednesday, July 8, 2015 10:48:26 PM 
Subject: Re: Dual stack IPv6 for IPv4 depletion 

On Wed, Jul 8, 2015 at 7:49 PM, Karl Auer <kauer () biplane com au> wrote: 
On Wed, 2015-07-08 at 21:03 -0500, Mike Hammett wrote: 
I wasn't aware that residential users had (intentionally) multiple 
layers of routing within the home. 

No, what they often have is multiple layers of nat. I was at a hotel 
once that had plugged in 12 APs, serially, wan, to lan, to wan, to 
lan, to wan ports... because the Internet is a series of tubes, right? 

You, we, all of us have to stop using the present to limit the future. 
What IS should not be used to define what SHOULD BE. 

What people NOW HAVE in their homes should not be used to dictate to 
them what they CAN HAVE in their homes, which is what you do when you 
provide them only with non-globally-routable address space (IPv4 NAT), 
or too few subnets (IPv6 /56) to name just two examples. 

Multiple layers of routing might not be what is now in the home, but it 
doesn't take that much imagination to envision a future where there are 
hundreds, or even thousands of separate networks in the average home, 
some permanent, some ephemeral, and quite possibly all requiring 
end-to-end connectivity into the wider Internet. Taking into account 
just a few current technologies (virtual machines, car networks, 
personal networks, guest networks, entertainment systems) and 
fast-forwarding just a few years it's easy to imagine tens of subnets 
being needed - so it's not much of a leap to hundreds. And if we can 
already dimly see a future where hundreds might be needed, history tells 
us that there will probably be applications that need thousands. 

Unless of course we decide now that we don't WANT that. Then we should 
make it hard for it to happen by applying entirely arbitrary brakes like 
"/48 sounds too big to me, let's make it 1/256th of that." 

In my case I have completely abandoned much of the debris of ipv4 and 
ipv6 - using self assigned /128s and a mesh routing protocol 
everywhere, giving up on multicast as we knew it, and all I need is 
one /64 to route my (almost entirely wireless) world. 

Somehow I doubt this will become a common option for others, but it 
sure is easier than navigating the slew of standards, configuring 
centralized services, and casting and configuring limited and highly 
dynamic ipv6 subnets around. 


Regards, K. 

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
Karl Auer (kauer () biplane com au) 
http://www.biplane.com.au/kauer 
http://twitter.com/kauer389 

GPG fingerprint: 3C41 82BE A9E7 99A1 B931 5AE7 7638 0147 2C3C 2AC4 
Old fingerprint: EC67 61E2 C2F6 EB55 884B E129 072B 0AF0 72AA 9882 





-- 
Dave Täht 
worldwide bufferbloat report: 
http://www.dslreports.com/speedtest/results/bufferbloat 
And: 
What will it take to vastly improve wifi for everyone? 
https://plus.google.com/u/0/explore/makewififast 


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