{
  "draft": "draft-ietf-v6ops-ipsec-tunnels-05",
  "doc_id": "RFC4891",
  "title": "Using IPsec to Secure IPv6-in-IPv4 Tunnels",
  "authors": [
    "R. Graveman",
    "M. Parthasarathy",
    "P. Savola",
    "H. Tschofenig"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "23",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "IPv6 Operations",
  "abstract": "This document gives guidance on securing manually configured IPv6-in- IPv4 tunnels using IPsec in transport mode.  No additional protocol extensions are described beyond those available with the IPsec framework.  This memo provides information for the Internet community.",
  "pub_date": "May 2007",
  "keywords": [
    "internet protocol",
    "internet protocol security",
    "ip security"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC4891",
  "errata_url": null
}