On Wed, Jan 09, 2008 at 11:04:59AM +0100, Stiphane Chausson wrote: > In a [1]press communiqui (in french, sorry) they say they give 2^64 ip > address to every customer.
> To me, total ipv6 beginner, it seems a lot ! It seems to be, though it is the bare minimum. > What is bad with "/64" ? This is only _one_ prefix. The other lower-order 64 bits would generally be used for autoconfiguration (IPv6 has mechanisms allowing devices to automatically determine a routable address from the prefix and, e.g., their MAC address*). This means you won't be able to do any _clean_ subnetworking. Usually when giving prefixes, the "leaf ISPs" are supposed to delegate /48 to their customers. This lets enough lattitude to design your network plan without limitation due to being short of /64's. That said, it may be true that most end-users like Free.fr has won't need much more than one /64. But still, this can become frustrating (How come my car cannot be a subnetwork as my home is?!) > Are they sort of lying ? Playing with words ? Nope. And it is still a good thing that they finally provide IPv6 connectivity, but this is the smallest move they could have done. * this means, indeed, that the /64 range is very sparsely populated. -- Olivier Mehani <[EMAIL PROTECTED]> PGP fingerprint: 3720 A1F7 1367 9FA3 C654 6DFB 6845 4071 E346 2FD1 [demime 1.01d removed an attachment of type application/pgp-signature]
