From: Ray Soucy [mailto:email@example.com]
Sent: Tuesday, October 27, 2009 9:45 AM
To: Jeffrey Ollie
Cc: North American Network Operators Group
Subject: Re: IPv6 could change things - Was: DMCA takedowns of
> But do the commonly-used operating systems support adding hundreds
> thousands of addresses to an interface, and what would the
> implications be?
> Jeff Ollie
Last time I checked, and this may have changed, the limit in Linux was
So in this circumstance you could route a /116 to the server. COOL!
In practice though, you also have to consider the physical limitations
of the server itself. The biggest bang for the buck in dense hosting
environments seems to be running about 1000 sites per box, with a few
boxes dedicated to your heavy hitters with 100 or less ea.
So in this circumstance you could route a /118 to the server serving
1000 sites and a /125 to the server serving 100 sites. Also COOL!
Until we start seeing IPv6-only hosting though, I suspect that we will
see IPv6 address mirror the configuration of the IP assignments.
Sites with dedicated IPs will have dedicated IPv6, sites with shared
IP will have shared IPv6, if only to maintain sanity.
This passes my smell and duh tests.
If you're trying to make the case for IPv6 to hosting companies,
you're barking up the wrong tree. IP address just became a scarce
commodity, instead of providing you with a free IP address, the can
now charge $100 a mo for one. They know darn well that it will take a
while for every user to have IPv6 from their SP and that if you want
to run a site you'll need access to the "legacy" IP Internet to reach
your customers. On the bright side, this will encourage the market to
adopt IPv6 because they can't afford IP. Hopefully ARIN adopts a
policy of decommissioning IP space as they reclaim it to prevent
people from receiving new allocations as people begin to go IPv6-only,
otherwise we'll be stuck with two Internets for a very long time.
Agreed, except for one thing. ARIN shouldn't "decommission" IP space.
The Internet will dictate that IPv4 will go away all on its own once
IPv6 becomes the protocol of choice for enough of the net. At some
point, the people who depend on IPv4 will not be able to pay for their
providers supporting the IPv4 infrastructure as new devices become
available that either only support IPv6, or don't implement a full suite
of IPv4 to keep costs down.
Also remember that at some point, there will be no IPv4 left. When this
happens new entrants will suffer greatly at the hands of this
circumstance. But we will get through it and there will be new sites
that will be IPv6 only, then there will be demand for these sites, then
there will be people who vote with their wallets for the new sites...
Was I rambling there? In the end it will be economics that dictate a
single protocol Internet. I am one who wishes we put a date in stone now
to establish the "cut date" of IPv4 to IPv6, but that is unreasonable.
This will take care of itself.