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timbeck04@verizon.net Wed, 04 January 2006 04:14 UTC
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Date: Tue, 03 Jan 2006 22:14:18 -0600
To: jspence@native6.com
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Hi John, please see my comments in-line: -----Original Message----- From: ipv6-bounces@ietf.org [mailto:ipv6-bounces@ietf.org] On Behalf Of John Spence Sent: Monday, January 02, 2006 12:23 PM To: ipv6@ietf.org Subject: Are privacy extensions, RFC 3041,defined for non global-scope addresses? I re-read the document, and it certainly focuses on the privacy needs of global-scope addresses. I did not find a place where it said it was not defined for ULA or link-local scope addresses. -> AFAICS, RFC 3041 deals only with global-scope addresses. The stated goals (2-4) explicitly refer to global-scope addresses. Is that the intent - not defined for non global-scope addresses? Or I am reading that into it? -> I think it's reasonable to conclude the mechanism defined in RFC 3041 is not defined for non global-scope addressses. ULAs to my knowledge didn't exist at the time 3041 was written (RFC 3041 in January 2001, RFC 4193 not until October 2005). Even though there is an extant draft meant to update 3041 [draft-ietf-ipv6-privacy-addrs-v2-04.txt], it has yet to become an RFC itself. -> If by some stretch RFC 3041 was meant for link-local scope addresses, it seems that would be suboptimal. At least as often as the temp link-local unicast address changed, the node would have to (un)subscribe to the corresponding solicited-node multicast group(s). That could lead to reduced performance. I'd also wonder about the affect temporary link-local addresses would have on a router's neighbor cache, and/or any connectivity dependent upon the accuracy of cache entries... How might this affect ND itself (not a leading question BTW)? Thanks. -> Best regards, Tim Enos 1Sam16:7 ---------------------------------------------------- John Spence, CCSI, CCNA, CISSP Native6, Inc. IPv6 Training and Consulting jspence@native6.com ---------------------------------------------------- -------------------------------------------------------------------- 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 --------------------------------------------------------------------
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- RE: Are privacy extensions, RFC 3041, defined for… John Spence
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