One view about this issue based on the previous discussion years ago is that the dns implementors may choose to tailor the dns response in their own way, but ietf is unlikely to standardize it.
Jiankang Yao From: Colm MacCárthaigh Date: 2014-05-07 09:14 To: yaojk CC: Joe Abley; dnsop Subject: Re: [DNSOP] call to work on edns-client-subnet On Tue, May 6, 2014 at 6:04 PM, Jiankang Yao <ya...@cnnic.cn> wrote: Section 3.1.1. Responses Tailored to the Originator in the draft-iab-dns-applications-07 has some related discussion to this topic. From the IAB draft, it seems that IAB does not prefer to tailor dns response based on the originator. 3.1.1 reads pretty neutral to me, even saying that it "introduces little harm" (for web portals) and that it has broad adoption in the field. It just notes that it doesn't have much support in the community. But it clearly has broad support on the internet. At this point a majority of DNS responses are likely based on the originator (that's my guess based on local data, but it'd be interesting to see real data). -- Colm
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