On 16/03/2011 01:51 p.m., Brian Haley wrote: > I have an almost off-topic comment, but since I've seen no mention of it > in any of these privacy threads... > > You have to assume in a large data center that almost every MAC address you > encounter is going to be randomly generated.
Are they actually random? i.e., I'm curious about the algorithm used for generating the Interface IDs. > This is because there are > *lots* of virtual machines out there, and the density of them is increasing > exponentially. Their MACs could change daily as they are deployed and > decommissioned, but from their perspective their MAC is hardware-based. > I know you have this as a "SHOULD" requirement, but figured I should mention > it since it's one of those places where this bit will be completely ignored. >From the point of view of the VMs, they would still be using Modified EUI-64 Interface Identifiers. This is not that different from the case in which the admin sets the MAC address of an interface to some value that he wants (other than the *real* address of the interface). IMHO, this is out-of-scope for this document. Thanks! Best regards, -- Fernando Gont e-mail: ferna...@gont.com.ar || fg...@acm.org PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1 -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------