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IETF RFC 3627
[SUPERSEDED]

Use of /127 Prefix Length Between Routers Considered Harmful

Metadata

Publisher
IETF
Doc Type
Specification
Pages
6
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.
Publication Date
2003-09-01
Status Note
Historic
DOI
10.17487/RFC3627
Link
https://doi.org/10.17487/RFC3627
Author(s)
Pekka Savola
Keyword(s)
Anycast
Latest version of IETF RFC 3627

Document Versions — IETF RFC 3627

  • ▶ IETF RFC 3627 (2003-09-01)
    THIS DOC [SUPERSEDED] [LATEST VERSION]

Superseded by:
  • RFC6547 NOT IN REGISTRY

Normative Reference(s)

Bibliographic Reference(s)

  • Johnson, D., Perkins, C., Arkko, J., "Mobility Support in IPv6", Work in Progress. EXTERNAL
  • Hagino, J., Jinmei, T., Zill, B., "Avoiding ping-pong packets on point-to-point links", Work in Progress. EXTERNAL
  • Conta, A., Deering, S., "Internet Control Message Protocol (ICMPv6)", Work in Progress. EXTERNAL
  • IETF RFC 2461 [Superseded*]
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IETF RFC 3627, Use of /127 Prefix Length Between Routers Considered Harmful. Available at https://doi.org/10.17487/RFC3627
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IETF RFC 3627, Use of /127 Prefix Length Between Routers Considered Harmful. Available at https://doi.org/10.17487/RFC3627

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IETF RFC 3627, Use of /127 Prefix Length Between Routers Considered Harmful. Available at https://doi.org/10.17487/RFC3627
Snippet:
<span class="citation"><cite>IETF RFC 3627</cite>, Use of /127 Prefix Length Between Routers Considered Harmful. Available at <a href="https://doi.org/10.17487/RFC3627" target="_blank" rel="noopener">https://doi.org/10.17487/RFC3627</a></span>

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IETF RFC 3627, Use of /127 Prefix Length Between Routers Considered Harmful
doi: 10.17487/RFC3627
url: https://doi.org/10.17487/RFC3627
Snippet:
<li>
<cite id="bib-rfc3627">IETF RFC 3627</cite>, Use of /127 Prefix Length Between Routers Considered Harmful
<span class="doi">10.17487/RFC3627</span>
</li>

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