{
  "draft": "draft-ietf-dnsop-edns-client-subnet-08",
  "doc_id": "RFC7871",
  "title": "Client Subnet in DNS Queries",
  "authors": [
    "C. Contavalli",
    "W. van der Gaast",
    "D. Lawrence",
    "W. Kumari"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "30",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "Domain Name System Operations",
  "abstract": "This document describes an Extension Mechanisms for DNS (EDNS0) option that is in active use to carry information about the network that originated a DNS query and the network for which the subsequent response can be cached.  Since it has some known operational and privacy shortcomings, a revision will be worked through the IETF for improvement.",
  "pub_date": "May 2016",
  "keywords": [
    "edns-client-subnet",
    "ECS",
    "DNS geolocation",
    "DNS load-balancing",
    "EDNS",
    "EDNS0",
    "geolocation",
    "privacy"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC7871",
  "errata_url": "https://www.rfc-editor.org/errata/rfc7871"
}