4291 does mention it in Appendix A: where "c" is the bits of the assigned company_id, "0" is the value of the universal/local bit to indicate universal scope, "g" is individual/group bit, and "m" is the bits of the manufacturer- selected extension identifier. The IPv6 interface identifier would be of the form:
|0 1|1 3|3 4|4 6| |0 5|6 1|2 7|8 3| +----------------+----------------+----------------+----------------+ |cccccc1gcccccccc|ccccccccmmmmmmmm|mmmmmmmmmmmmmmmm|mmmmmmmmmmmmmmmm| +----------------+----------------+----------------+----------------+ The only change is inverting the value of the universal/local bit. - Bernie -----Original Message----- From: Suresh Krishnan [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 28, 2007 12:01 PM To: Bernie Volz (volz) Cc: [email protected] Subject: Re: Reserved interface identifier registry Hi Bernie, > Instead of step 4, perhaps step 4 (or as part of 3) should state > that the individual/group bit (bit 7) should be set to 0 to > indiciate individual (unless a group identifier were being generated, > which I don't think is the point of this draft). There is no mention > of this bit in the document. I don't know if there is such a thing as a group identifier. I have always been uncomfortable with the meaning of this bit in the IID. RFC4291 refers to flipping a unique bit in the EUI-64 and EUI-64 does not mention a group/individual bit. Thanks Suresh -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
