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RFC 7421
Title: Analysis of the 64-bit Boundary
in IPv6 Addressing
Author: B. Carpenter, Ed.,
T. Chown, F. Gont,
S. Jiang, A. Petrescu,
A. Yourtchenko
Status: Informational
Stream: IETF
Date: January 2015
Mailbox: brian.e.carpenter@gmail.com,
tjc@ecs.soton.ac.uk,
fgont@si6networks.com,
jiangsheng@huawei.com,
alexandru.petrescu@cea.fr,
ayourtch@cisco.com
Pages: 24
Characters: 60469
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-6man-why64-08.txt
URL: https://www.rfc-editor.org/info/rfc7421
The IPv6 unicast addressing format includes a separation between the
prefix used to route packets to a subnet and the interface identifier
used to specify a given interface connected to that subnet.
Currently, the interface identifier is defined as 64 bits long for
almost every case, leaving 64 bits for the subnet prefix. This
document describes the advantages of this fixed boundary and analyzes
the issues that would be involved in treating it as a variable
boundary.
This document is a product of the IPv6 Maintenance Working Group of the IETF.
INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
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