{
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  "sourcePath": "src/main/data/docs",
  "docId": "RFC6178",
  "document": {
    "abstract": "This document specifies how Label Edge Routers (LERs) should behave when determining whether to MPLS encapsulate an IPv4 packet with header options. Lack of a formal standard has resulted in different LER forwarding behaviors for IPv4 packets with header options despite being associated with a prefix-based Forwarding Equivalence Class (FEC). IPv4 option packets that belong to a prefix-based FEC, yet are forwarded into an IPv4/MPLS network without being MPLS- encapsulated, present a security risk against the MPLS infrastructure. Further, LERs that are unable to MPLS encapsulate IPv4 packets with header options cannot operate in certain MPLS environments. While this newly defined LER behavior is mandatory to implement, it is optional to invoke. [STANDARDS-TRACK]",
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      "confidence": "high",
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "authors": [
      {
        "name": "David Smith"
      },
      {
        "name": "John Mullooly"
      },
      {
        "name": "William Jaeger"
      },
      {
        "name": "Tom Scholl"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docId": "RFC6178",
    "docId$meta": {
      "confidence": "high",
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      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docLabel": "IETF RFC 6178",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docNumber": "6178",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docTitle": "Label Edge Router Forwarding of IPv4 Option Packets",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "doi": "10.17487/RFC6178",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "href": "https://doi.org/10.17487/RFC6178",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "keywords": [
      "Forward Error Correction",
      "MPLS",
      "LER",
      "Security",
      "DoS"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "pages": "9",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "publicationDate": "2011-03-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "references": {
      "bibliographic": [
        "RFC2205",
        "RFC2460",
        "RFC3209",
        "RFC3270",
        "RFC3443",
        "RFC4364",
        "RFC4379",
        "RFC4381",
        "RFC4950",
        "IANA",
        "RFC5462"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=16 proseBlocks=20 skippedAnchorBlocks=17",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
        "updated": "2026-10-13T22:25:45.877Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "normative": [
        "RFC791",
        "RFC2119",
        "RFC3031",
        "RFC3032"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
        "updated": "2026-10-13T22:25:45.877Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc6178/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
      "updated": "2026-10-13T22:25:45.877Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
        "updated": "2026-10-13T22:25:45.877Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "amends": [
        "RFC3031"
      ],
      "amends$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
        "updated": "2026-10-13T22:25:45.877Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "errataExist": false,
      "errataExist$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/rfc6178/",
        "updated": "2026-10-13T22:25:45.877Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
        "updated": "2026-10-13T22:25:45.877Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "statusNote": "Proposed Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6178/",
        "updated": "2026-10-13T22:25:45.877Z",
        "version": "extractDocs.js@commit:fd871efde64d"
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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/rfc6178/",
        "updated": "2026-10-13T22:25:45.877Z",
        "version": "extractDocs.js@commit:fd871efde64d"
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}