{
  "draft": null,
  "doc_id": "RFC3514",
  "title": "The Security Flag in the IPv4 Header",
  "authors": [
    "S. Bellovin"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "6",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "INDEPENDENT",
  "abstract": "Firewalls, packet filters, intrusion detection systems, and the like often have difficulty distinguishing between packets that have malicious intent and those that are merely unusual.  We define a security flag in the IPv4 header as a means of distinguishing the two cases.  This memo provides information for the Internet community.",
  "pub_date": "1 April 2003",
  "keywords": [
    "evil",
    "evil bit"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC3514",
  "errata_url": "https://www.rfc-editor.org/errata/rfc3514"
}