{
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  "docId": "RFC5406",
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    "abstract": "The Security Considerations sections of many Internet Drafts say, in effect, \"just use IPsec\". While this is sometimes correct, more often it will leave users without real, interoperable security mechanisms. This memo offers some guidance on when IPsec Version 2 should and should not be specified. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.",
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      "confidence": "high",
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      "updated": "2026-10-13T18:22:22.790Z",
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    "authors": [
      {
        "name": "Steven Bellovin"
      }
    ],
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
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      "source": "parsed",
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      "updated": "2026-10-13T18:22:22.790Z",
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    "docId": "RFC5406",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
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    "docLabel": "IETF RFC 5406",
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      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docNumber": "5406",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docTitle": "Guidelines for Specifying the Use of IPsec Version 2",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docType": "Best Practice",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "doi": "10.17487/RFC5406",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "href": "https://doi.org/10.17487/RFC5406",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "keywords": [
      "Security Considerations"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "Internet Security",
        "Security Considerations"
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      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T19:00:22.726Z",
      "version": "extractDocs.js@commit:8ad844f404e0"
    },
    "pages": "13",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publicationDate": "2009-02-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "references": {
      "bibliographic": [
        "RFC2385",
        "RFC2461",
        "RFC2661",
        "RFC3547",
        "RFC3552",
        "RFC3715",
        "RFC3830",
        "RFC4271",
        "RFC4301",
        "RFC4302",
        "RFC4303",
        "RFC4306",
        "RFC4430",
        "RFC4535",
        "RFC4960",
        "orphan/RFC5406/h:b2140820",
        "orphan/RFC5406/h:5746956f",
        "orphan/RFC5406/h:40b92c2a"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=28 proseBlocks=32 skippedAnchorBlocks=29",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
        "updated": "2026-10-13T18:22:22.791Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "normative": [
        "RFC2401",
        "RFC2402",
        "RFC2406",
        "RFC2409",
        "RFC3554",
        "RFC3948",
        "RFC4107",
        "RFC5280",
        "RFC5374"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
        "updated": "2026-10-13T18:22:22.791Z",
        "version": "extractDocs.js@commit:6d30695438dd"
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    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc5406/",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
      "updated": "2026-10-13T18:22:22.790Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
        "updated": "2026-10-13T18:22:22.790Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataExist": false,
      "errataExist$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/rfc5406/",
        "updated": "2026-10-13T18:22:22.790Z",
        "version": "extractDocs.js@commit:6d30695438dd"
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      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
        "updated": "2026-10-13T18:22:22.790Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "statusNote": "Best Current Practice",
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
        "updated": "2026-10-13T18:22:22.790Z",
        "version": "extractDocs.js@commit:6d30695438dd"
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      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5406/",
        "updated": "2026-10-13T18:22:22.790Z",
        "version": "extractDocs.js@commit:6d30695438dd"
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}