{
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  "sourcePath": "src/main/data/docs",
  "docId": "RFC1853",
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    "abstract": "This document discusses implementation techniques for using IP Protocol/Payload number 4 Encapsulation for tunneling with IP Security and other protocols. This memo provides information for the Internet community. It does not specify an Internet standard. This document describes the use of keyed SHA with the IP Authentication Header. This document defines an Experimental Protocol for the Internet community. This document describes the Triple DES-CBC security transform for the IP Encapsulating Security Payload (ESP). This document defines an Experimental Protocol for the Internet community.",
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      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
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      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
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    "authors": [
      {
        "name": "W. Simpson"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docId": "RFC1853",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docLabel": "IETF RFC 1853",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docNumber": "1853",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docTitle": "IP in IP Tunneling",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docType": "Informational",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "doi": "10.17487/RFC1853",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "href": "https://doi.org/10.17487/RFC1853",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "pages": "8",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "publicationDate": "1995-10-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "references": {
      "bibliographic": [
        "RFC791",
        "RFC792",
        "RFC1191",
        "RFC1241",
        "RFC1435",
        "RFC1700",
        "RFC1701",
        "orphan/RFC1853/h:2b8f83fe",
        "orphan/RFC1853/h:cd06c963"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=9 proseBlocks=18 skippedAnchorBlocks=10",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
        "updated": "2026-10-12T20:08:46.745Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc1853/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
      "updated": "2026-10-12T20:08:46.745Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
        "updated": "2026-10-12T20:08:46.745Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
        "updated": "2026-10-12T20:08:46.745Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
        "updated": "2026-10-12T20:08:46.745Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      },
      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
        "updated": "2026-10-12T20:08:46.745Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1853/",
        "updated": "2026-10-12T20:08:46.745Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
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}