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Re: [dns-privacy] [DNSOP] FW: New Version Notification for draft-pan-dnsop-edns-isp-location-00

Ask Bjørn Hansen <ask@develooper.com> Wed, 22 March 2017 04:40 UTC

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From: Ask Bjørn Hansen <ask@develooper.com>
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Date: Tue, 21 Mar 2017 21:40:12 -0700
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Cc: Barry Raveendran Greene <bgreene@senki.org>, dns-privacy@ietf.org, dnsop <dnsop@ietf.org>, "fuyu@cnnic.cn" <fuyu@cnnic.cn>
To: Lanlan Pan <abbypan@gmail.com>
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Subject: Re: [dns-privacy] [DNSOP] FW: New Version Notification for draft-pan-dnsop-edns-isp-location-00
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> On Mar 21, 2017, at 21:30 , Lanlan Pan <abbypan@gmail.com> wrote:
> 
> See this example of ECS : Which CDNs support edns-client-subnet?  <https://www.cdnplanet.com/blog/which-cdns-support-edns-client-subnet/>, they map the ECS client subnet into the geolocation (what EIL give), and then make DNS decision. Because on AUTH side, they do not so care about each client subnet, but configure on aerial view geolocation level


That’s a fundamental assumption of your proposal. What I’m offering (and I think what Warren said as well) is that it’s not true. The authoritative server will likely care as much or more about the subnet as it does the geo location.

The geo location only is fine for smaller networks or CDNs. Consider for example several pops in one city or region with differing peering connections in each pop.


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