{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.1.0",
  "lastModified": "2026-10-20T22:13:23.535Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC9872",
  "document": {
    "abstract": "On networks providing IPv4-IPv6 translation (RFC 7915), hosts and other endpoints need to know the IPv6 prefix(es) used for translation (the NAT64 prefix (RFC 6052)). This document provides guidelines for NAT64 prefix discovery, specifically recommending obtaining the NAT64 prefix from the Router Advertisement option (RFC 8781) when available.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "authors": [
      {
        "name": "Nick Buraglio"
      },
      {
        "name": "Tommy Jensen"
      },
      {
        "name": "Jen Linkova"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docId": "RFC9872",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docLabel": "IETF RFC 9872",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docNumber": "9872",
    "docNumber$meta": {
      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docTitle": "Recommendations for Discovering IPv6 Prefix Used for IPv6 Address Synthesis",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docType": "Informational",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "doi": "10.17487/RFC9872",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "href": "https://doi.org/10.17487/RFC9872",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "keywords": [
      "IPv6",
      "DNS64",
      "PREF64",
      "NAT64",
      "464XLAT"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "IPv6",
        "DNS64",
        "PREF64",
        "NAT64",
        "CLAT"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T22:13:23.535Z",
      "version": "extractDocs.js@commit:301bfdf288d8"
    },
    "pages": "10",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "publicationDate": "2025-09-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "references": {
      "bibliographic": [
        "IETF.draft-ietf-v6ops-claton-08",
        "RFC4861",
        "RFC4862",
        "RFC6052",
        "RFC6105",
        "RFC6144",
        "RFC6146",
        "RFC6147",
        "RFC6877",
        "RFC7051",
        "RFC7225",
        "RFC7915",
        "RFC8305",
        "RFC8880",
        "RFC9463",
        "RFC9499"
      ],
      "bibliographic$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
        "updated": "2026-10-20T21:48:06.523Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "normative": [
        "RFC2119",
        "RFC7050",
        "RFC8174",
        "RFC8781"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
        "updated": "2026-10-20T21:48:06.523Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc9872/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
      "updated": "2026-10-20T21:48:06.523Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
        "updated": "2026-10-20T21:48:06.523Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
        "updated": "2026-10-20T21:48:06.523Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
        "updated": "2026-10-20T21:48:06.523Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
        "updated": "2026-10-20T21:48:06.523Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9872/",
        "updated": "2026-10-20T21:48:06.523Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      }
    }
  }
}