Hi all, Following discussion on previous version draft, we have some updates.
1) Focus on *GeoIP-enabled* Authoritative Nameserver: Section-1 <https://tools.ietf.org/html/draft-pan-dnsop-edns-isp-location-02#section-1>, Appendix Geo-IP Example <https://tools.ietf.org/html/draft-pan-dnsop-edns-isp-location-02#section-10> . 2) Clarify the difference between *path calculation* (Data Provider) and *tailored DNS response* (Authoritative Nameserver), which are offen obfuscated at CDN scenario: Section-1.1 <https://tools.ietf.org/html/draft-pan-dnsop-edns-isp-location-02#section-1.1> . Your comments are appreciated. Regards, Lanlan & Yu ---------- Forwarded message --------- From: <[email protected]> Date: 2017年7月17日周一 上午9:55 Subject: New Version Notification for draft-pan-dnsop-edns-isp-location-02.txt To: Pan Lanlan <[email protected]>, Yu Fu <[email protected]> A new version of I-D, draft-pan-dnsop-edns-isp-location-02.txt has been successfully submitted by Lanlan Pan and posted to the IETF repository. Name: draft-pan-dnsop-edns-isp-location Revision: 02 Title: ISP Location in DNS Queries Document date: 2017-07-17 Group: Individual Submission Pages: 19 URL: https://www.ietf.org/internet-drafts/draft-pan-dnsop-edns-isp-location-02.txt Status: https://datatracker.ietf.org/doc/draft-pan-dnsop-edns-isp-location/ Htmlized: https://tools.ietf.org/html/draft-pan-dnsop-edns-isp-location-02 Htmlized: https://datatracker.ietf.org/doc/html/draft-pan-dnsop-edns-isp-location-02 Diff: https://www.ietf.org/rfcdiff?url2=draft-pan-dnsop-edns-isp-location-02 Abstract: Nowadays, many Authoritative Nameservers support GeoIP feature, they guess the user's geolocation by the client subnet of EDNS Client Subnet (ECS) or by the source IP address of DNS query, return tailor DNS response based on the user's geolocation. However, ECS raises some privacy concerns because it leaks client subnet information on the resolution path to the Authoritative Nameserver. This document is inspired by EDNS Client Subnet (ECS), describes an improved solution for GeoIP-enabled Authoritative Nameservers, defines an EDNS ISP Location (EIL) extension to address the privacy problem of ECS, tries to find the right balance between privacy improvement and user experience optimization. EIL is defined to convey isp location < COUNTRY, AREA, ISP > information that is relevant to the DNS message. It will directly provide the same sufficient information for the GeoIP-enabled Authoritative Nameserver as ECS, to decide the response without guessing geolocation of the IP address. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. The IETF Secretariat -- 致礼 Best Regards 潘蓝兰 Pan Lanlan
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