Where to buy Internet IP addresses

Youssef Ghorbal youssef.ghorbal at gmail.com
Thu May 7 04:43:37 CDT 2009

On Mon, May 4, 2009 at 11:57 PM,  <Charles at thewybles.com> wrote:
> This has been a fascinating theoritcal discussion.. how do existing providers hand out space?
> Hurricane electric (via its tunnel service) hands out a /64 by default and a /48 is a click away.
> How do other providers handle it? I'm in the us and only have native v4 connectivity :(
> Do the various traditional last mile providers (sprint/Verizon/att/patch etc ) offer it for t1 and better? If they do then what do they hand out by default, what's available, at what price point and what's the upgrade path? Is it one click like he?
> No provider I have talked to offers it for residential connectivity in the united states.
> What does free.fr do?

Free does 6rd and allocate a /64 per customer.
Here is a presentation how they do this :

> If there is this level of confusion and disagreement around addressing schemes then will it ever be offered to residences over traditional last mile loops?
> Sent via BlackBerry from T-Mobile
> -----Original Message-----
> From: Stephen Sprunk <stephen at sprunk.org>
> Date: Mon, 04 May 2009 16:36:16
> To: Bill Stewart<nonobvious at gmail.com>
> Cc: north American Noise and Off-topic Gripes<nanog at merit.edu>; Joe Greco<jgreco at ns.sol.net>
> Subject: Re: Where to buy Internet IP addresses
> Bill Stewart wrote:
>> When I came back, I found this ugly EUI-64 thing instead, so not only was autoconfiguration much uglier, but you needed a /56 instead of a /64 if you were going to subnet.
> It's supposed to be a /48 per customer, on the assumption that 16 bits
> of subnet information is sufficient for virtually anyone; exceptions
> should be rare enough that they can be handled as special cases.
> The /56 monstrosity came about because a US cable company wanted to
> assign a prefix to every home they passed, regardless of whether it
> contained a customer, so that they'd never need to renumber anything
> ever again.  However, that would require they get more than the /32
> minimum allocation, and ARIN policy doesn't allow _potential_ customers
> as a justification for getting a larger allocation, so they had to
> shrink the per-customer prefix down to a /56 to fit them all into a
> single /32.  If all those assignments were to _real_ customers, they
> could have gotten a /24 and given each customer a /48 as expected.  And,
> after that, many folks who can't wrap their heads around the size of the
> IPv6 address space appear to be obsessed with doing the same in other
> cases where even that weak justification doesn't apply...
>> Does anybody know why anybody thought it was a good idea to put the extra bits in the middle, or for IPv6 to adopt them?
> Why the switch from EUI-48 to EUI-64?  Someone in the IEEE got worried
> about running short of MAC (er, EUI-48) addresses at some point in the
> future, so they inserted 16 bits in the middle (after the OUI) to form
> an EUI-64 and are now "discouraging" new uses of EUI-48.  The IETF
> decided to follow the IEEE's guidance and switch IPv6 autoconfig from
> EUI-48 to EUI-64, but FireWire is the only significant user of EUI-64
> addresses to date; if you're using a link layer with EUI-48 addresses
> (e.g. Ethernet), an extra 16 bits (FFFE) get stuffed in the middle to
> transform it into the EUI-64 that IPv6 expects.
> S
> --
> Stephen Sprunk         "God does not play dice."  --Albert Einstein
> CCIE #3723         "God is an inveterate gambler, and He throws the
> K5SSS        dice at every possible opportunity." --Stephen Hawking

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