[AusNOG] The occurrence of duplicate MAC addresses

[Lloyd Wood]

Colleagues have horror stories about debugging running into MAC address conflicts in the field with IPv4.

"Oh, we weren't expecting you to ship them to a different region!"
 
Lloyd Wood
lloyd.wood at yahoo.co.uk




________________________________
 From: Mark Smith <markzzzsmith at yahoo.com.au>
To: "ausnog at ausnog.net" <ausnog at ausnog.net> 
Sent: Wednesday, 6 February 2013, 21:29
Subject: [AusNOG] The occurrence of duplicate MAC addresses
 
Hi,

There's been a discussion over the last few days on the IETF IPv6 6man (IPv6 maintenance) mailing list regarding the use of MAC addresses to generate IPv6 Interface Identifiers. One of the issues relates to how unique MAC addresses are.

Following on from "The Wild West" presentation I posted the other day, I emailed HD Moore to see if I could get some numbers regarding numbers of occurrences of duplication of individual MAC addresses. HD got back to me today, I've posted them at the following mailing list archive URLs. Make sure you're sitting down.

https://www.ietf.org/mail-archive/web/ipv6/current/msg17105.html


https://www.ietf.org/mail-archive/web/ipv6/current/msg17105.html


Regards,
Mark.
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