RFC 7608: IPv6 Prefix Length Recommendation for Forwarding
In plain English — editorial summary, not part of the RFC
IPv6 prefix length, as in IPv4, is a parameter conveyed and used in IPv6 routing and forwarding processes in accordance with the Classless Inter-domain Routing (CIDR) architecture. The length of an IPv6 prefix may be any number from zero to 128, although subnets using stateless address autoconfiguration (SLAAC) for address allocation conventionally use a /64 prefix. Hardware and software implementations of routing and forwarding should therefore impose no rules on prefix length, but implement longest-match-first on prefixes of any valid length.
Document record
- Document ID
- RFC7608
- Published
- July 2015
- Authors
- M. Boucadair; A. Petrescu; F. Baker
- Status
- BEST CURRENT PRACTICE
- Stream
- IETF
- Area
- ops
- Pages
- 6
- Also known as
- BCP198
Topics
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
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