Microsoft has a policy of complying with IETF procedures, including complying with patent disclosure requirements. If we believe that we have IPR that reads on a particular RFC or draft, we disclose it.
U.S. Patent No. 6,101,499 refers to allocation of 32 bit IPv4 addresses, and deals with the problem of reliable assignments in a rather narrow number space -- issues that are very different from simply concatenating a prefix and a unique suffix, as in Netware or IPv6. Microsoft did issue a disclosure statement on August 3, 2000, related to the automatic generation of IPv4 addresses (http://www.ietf.org/ietf/IPR/MICROSOFT-499.txt). If we believed that U.S. Patent No. 6,101,499 covered the automatic assignment of IPv6 addresses, we would have issued a disclosure statement a long time ago. -- Christian Huitema -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Smith Sent: Friday, November 04, 2005 4:11 PM To: ipv6@ietf.org Subject: Re: IPR Notification on RFC 2462 and 2464 On Fri, 4 Nov 2005 12:43:50 -0500 "Bound, Jim" <[EMAIL PROTECTED]> wrote: > We had stateless implemented in 1994 and the company in question was not > part of the original ND or Stateless discussions except now via > Christian Huitema who is now with the company in question. Also I am > sure Bill Simpson can verify prior art and most likely even back to OSI > ES-IS. This is really to bad folks. > I'm pretty sure both Novell's IPX and Apple's Appletalk also use similar, if not the same techniques to generate automated layer 3 addresses, in the absence of routers announcing prefixes to use on the link. Regards, Mark. -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
