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SLAAC Prefixes with Variable Interface ID (IID)
draft-mishra-6man-variable-iids-02

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Active".
Expired & archived
Authors Gyan Mishra , Dmytro Shytyi , Alexandre Petrescu , Naveen Kottapalli , Dusan Mudric
Last updated 2025-05-12 (Latest revision 2024-11-07)
RFC stream (None)
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Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

This draft proposes the use of a longer prefixes in PIO for SLAAC allowing a maximum prefix length of /80 with an IID of 48 bits. This would eliminate the race to the bottom concerns. This implementation uses the RA/PIO bits to carry the variable IID to ensure backwards compatibility. In the past, various IPv6 addressing models have been proposed based on a subnet hierarchy embedding a 64-bit prefix. The last remnant of IPv6 classful addressing is a inflexible interface identifier boundary at /64. This document proposes flexibility to the fixed position of that boundary for interface addressing.

Authors

Gyan Mishra
Dmytro Shytyi
Alexandre Petrescu
Naveen Kottapalli
Dusan Mudric

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)