Re: [BEHAVE] [Technical Errata Reported] RFC6052 (5547)

JORDI PALET MARTINEZ <jordi.palet@consulintel.es> Tue, 06 November 2018 14:07 UTC

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Date: Tue, 06 Nov 2018 21:07:04 +0700
From: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
To: Fred Baker <fredbaker.ietf@gmail.com>
CC: Christian Huitema <huitema@huitema.net>, Congxiao Bao <congxiao@cernet.edu.cn>, mohamed.boucadair@orange-ftgroup.com, Dave Thaler <dthaler@microsoft.com>, Xing Li <xing@cernet.edu.cn>, spencerdawkins.ietf@gmail.com, dwing@cisco.com, huitema@microsoft.com, "Mirja Kuehlewind (IETF)" <ietf@kuehlewind.net>, behave@ietf.org, RFC Errata System <rfc-editor@rfc-editor.org>
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Thread-Topic: [BEHAVE] [Technical Errata Reported] RFC6052 (5547)
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Subject: Re: [BEHAVE] [Technical Errata Reported] RFC6052 (5547)
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Totally agree and is the case that I call "foreign DNS" in draft-ietf-v6ops-nat64-deployment, but I was meaning that, as most of the NAT64 deployments use the WKP, changing among them doesn't break, so at least we "break less".

Regards,
Jordi
 
 

-----Mensaje original-----
De: Fred Baker <fredbaker.ietf@gmail.com>
Fecha: martes, 6 de noviembre de 2018, 20:52
Para: JORDI PALET MARTINEZ <jordi.palet@consulintel.es>
CC: Christian Huitema <huitema@huitema.net>, Congxiao Bao <congxiao@cernet.edu.cn>, <mohamed.boucadair@orange-ftgroup.com>, Dave Thaler <dthaler@microsoft.com>, Xing Li <xing@cernet.edu.cn>, <spencerdawkins.ietf@gmail.com>, <dwing@cisco.com>, <huitema@microsoft.com>, "Mirja Kuehlewind (IETF)" <ietf@kuehlewind.net>, <behave@ietf.org>, RFC Errata System <rfc-editor@rfc-editor.org>
Asunto: Re: [BEHAVE] [Technical Errata Reported] RFC6052 (5547)

    
    
    > On Nov 6, 2018, at 7:16 PM, JORDI PALET MARTINEZ <jordi.palet@consulintel.es> wrote:
    > 
    > The advantage I see with a WKP is that you can roam to another NAT64 (and/or DNS64) without changing configs, and also, that you may ignore the prefix discovery mechanism (I've seen this coded in some places), if you presume that the WKP is the "default" one ...
    
    That, of course, is exactly the problem with RFC 7050. If you are using the preferred resolver, you get one prefix, and if you're using 8.8.8.8 (as many do), you get another. A Well Known Prefix is a great way to pick the wrong one, or one that doesn't exist.
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