This proposal is making the assumption that MAC addreses are somehow stable.
I think this is a bad idea.
A simple change of a NIC card in a router will start a renumbering event,
and, although somehow simpler than in IPv4, IPv6 renumbering event are far
from painless.

On our servers, we recommend not to use staleless autoconfiguration based
on MAC addresses, but instead to use a locally administered token as interface ID.
Actually, our experience shows that in our environment, IPv4 addresses
are far more stable than MAC addresses.

- Alain.



by way of Bob Hinden wrote:

A New Internet-Draft is available from the on-line Internet-Drafts directories.

Title : IPv6 Globally Unique Site-Local Addresses
Author(s) : R. Hinden
Filename : draft-hinden-ipv6-global-site-local-00.txt
Pages : 7
Date : 2002-12-6

This internet draft describes a proposal for IPv6 Globally Unique
Site-Local Addresses.


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