{
  "draft": "draft-savola-ipv6-127-prefixlen-04",
  "doc_id": "RFC3627",
  "title": "Use of /127 Prefix Length Between Routers Considered Harmful",
  "authors": [
    "P. Savola"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "6",
  "pub_status": "INFORMATIONAL",
  "status": "HISTORIC",
  "source": "INDEPENDENT",
  "abstract": "In some cases, the operational decision may be to use IPv6 /127 prefix lengths, especially on point-to-point links between routers.  Under certain situations, this may lead to one router claiming both addresses due to subnet-router anycast being implemented.  This document discusses the issue and offers a couple of solutions to the problem; nevertheless, /127 should be avoided between two routers.",
  "pub_date": "September 2003",
  "keywords": [
    "address space",
    "anycast"
  ],
  "obsoletes": [],
  "obsoleted_by": [
    "RFC6547"
  ],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC3627",
  "errata_url": "https://www.rfc-editor.org/errata/rfc3627"
}