{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.1.0",
  "lastModified": "2026-10-12T19:27:19.919Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC1858",
  "document": {
    "abstract": "IP fragmentation can be used to disguise TCP packets from IP filters used in routers and hosts. This document describes two methods of attack as well as remedies to prevent them. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "authors": [
      {
        "name": "Paul Ziemba"
      },
      {
        "name": "Darren Reed"
      },
      {
        "name": "Paul S. Traina"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "docId": "RFC1858",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "docLabel": "IETF RFC 1858",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "docNumber": "1858",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "docTitle": "Security Considerations for IP Fragment Filtering",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "docType": "Informational",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "doi": "10.17487/RFC1858",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "href": "https://doi.org/10.17487/RFC1858",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "keywords": [
      "IP",
      "TCP",
      "Networks",
      "Control",
      "Routers"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "IP",
        "TCP",
        "Networks",
        "Control",
        "Routers",
        "Hosts"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:27:19.919Z",
      "version": "extractDocs.js@commit:f9547721e7d0"
    },
    "pages": "10",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "publicationDate": "1995-10-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "references": {
      "bibliographic": [
        "RFC791",
        "RFC793",
        "RFC815",
        "orphan/RFC1858/h:b0903dcc"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=4 proseBlocks=6 skippedAnchorBlocks=5",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
        "updated": "2026-10-12T19:03:24.344Z",
        "version": "extractDocs.js@commit:bada2c0eb491"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc1858/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
      "updated": "2026-10-12T19:03:24.344Z",
      "version": "extractDocs.js@commit:bada2c0eb491"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
        "updated": "2026-10-12T19:03:24.344Z",
        "version": "extractDocs.js@commit:bada2c0eb491"
      },
      "amendedBy": [
        "RFC3128"
      ],
      "amendedBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
        "updated": "2026-10-12T19:03:24.344Z",
        "version": "extractDocs.js@commit:bada2c0eb491"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
        "updated": "2026-10-12T19:03:24.344Z",
        "version": "extractDocs.js@commit:bada2c0eb491"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc1858",
        "https://www.rfc-editor.org/errata_search.php?rfc=1858",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc1858.html"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
        "updated": "2026-10-12T19:03:24.344Z",
        "version": "extractDocs.js@commit:bada2c0eb491"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
        "updated": "2026-10-12T19:03:24.344Z",
        "version": "extractDocs.js@commit:bada2c0eb491"
      },
      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
        "updated": "2026-10-12T19:03:24.344Z",
        "version": "extractDocs.js@commit:bada2c0eb491"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1858/",
        "updated": "2026-10-12T19:03:24.344Z",
        "version": "extractDocs.js@commit:bada2c0eb491"
      }
    }
  }
}