{
  "number": 3627,
  "title": "Use of /127 Prefix Length Between Routers Considered Harmful",
  "authors": [
    "P. Savola"
  ],
  "published": "2003-09",
  "status": "Historic",
  "publication_status": "Informational",
  "stream": "INDEPENDENT",
  "pages": 6,
  "formats": [
    "TXT",
    "HTML"
  ],
  "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.",
  "keywords": [
    "address space",
    "anycast"
  ],
  "draft": "draft-savola-ipv6-127-prefixlen-04",
  "doi": "10.17487/RFC3627",
  "errata_url": "https://www.rfc-editor.org/errata/rfc3627",
  "obsoleted_by": [
    "RFC6547"
  ],
  "urls": {
    "html": "https://rfc.dk/rfc3627/",
    "text": "https://rfc.dk/rfc3627.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc3627",
    "datatracker": "https://datatracker.ietf.org/doc/rfc3627/"
  },
  "text_modified": "2003-09-12T21:23:09Z"
}