On Mon, May 4, 2009 at 11:57 PM, <char...@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 : http://www.ripe.net/ripe/meetings/ripe-58/content/presentations/ipv6-free.pdf > > 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 <step...@sprunk.org> > > Date: Mon, 04 May 2009 16:36:16 > To: Bill Stewart<nonobvi...@gmail.com> > Cc: north American Noise and Off-topic Gripes<na...@merit.edu>; Joe > Greco<jgr...@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 > > >
