Re: draft-gont-6man-managing-privacy-extensions-00.txt

Fernando Gont <fernando@gont.com.ar> Fri, 18 March 2011 01:09 UTC

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Sender: Fernando Gont <fernando.gont.netbook.win@gmail.com>
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Date: Thu, 17 Mar 2011 22:10:46 -0300
From: Fernando Gont <fernando@gont.com.ar>
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To: Yu Hua bing <yhb810501@gmail.com>
Subject: Re: draft-gont-6man-managing-privacy-extensions-00.txt
References: <7111FC5F-BC3F-4242-9C3F-037E79894749@gmail.com> <alpine.DEB.1.10.1103091212570.7942@uplift.swm.pp.se> <4D77CBB9.1080702@gmail.com> <20110310071925.309d467b@opy.nosense.org> <4D7F539E.7030308@gont.com.ar><4D7FE55B.7050207@gmail.com> <4D80166A.9060502@gont.com.ar><22F6318E46E26B498ABC828879B08D4F0C40AA@TK5EX14MBXW653.wingroup.windeploy.ntdev.microsoft.com> <4D80ADCF.7060409@gont.com.ar> <AAB2A33432A6460490005A0EF60D3A9E@yhbPC>
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On 16/03/2011 11:14 a.m., Yu Hua bing wrote:
>> Our draft is not meant to propose "not to use privacy addresses" -- as
>> noted a few times, already, the proposed mechanism could be used to turn
>> "privacy addresses" on for some systems that have decided not to enable
>> them by default (e.g., FreeBSD).
> 
> Windows provides the command line to turn on or off the privacy extension.
> Is your meaning is that if the user turn off the privacy extension, the RAG
> flag in the router advertisement can turn on the privacy extension?

No.

A host could have two knobs, e.g.:
DefaultAddressPolicy = PrivacyExtensions/EUI64
EnableAddressPolicyConfiguration = Enabled/Disabled

If EnableAddressPolicyConfiguration is Enabled, then the host will
employ whatever address policy is advised by the router (or, if no
specific advice is provided, it would use DefaultAddressPolicy).

If EnableAddressPolicyConfiguration is Disabled, then the host would
employ DefaultAddressPolicy regardless of what the router is advising.

The aforementioned knobs might be configured with different
granularities. For example, on a "per wireless network" basis, or whatever.

Thanks,
-- 
Fernando Gont
e-mail: fernando@gont.com.ar || fgont@acm.org
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1