[114242] in North American Network Operators' Group
Re: Where to buy Internet IP addresses
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Mon May 4 22:52:12 2009
To: Jack Bates <jbates@brightok.net>
In-Reply-To: Your message of "Mon, 04 May 2009 21:29:29 CDT."
<49FFA489.6060000@brightok.net>
From: Valdis.Kletnieks@vt.edu
Date: Mon, 04 May 2009 22:51:46 -0400
Cc: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Mon, 04 May 2009 21:29:29 CDT, Jack Bates said:
> Ricky Beam wrote:
> > If I'm allowed to subnet my single /64, then I'm still not using NAT.
> > And as long as I don't go beyond /80, autoconfig can still work, at
> > least on ethernet -- which is pretty much 99.999% of cases. (not that I
> > advocate the use of autoconfig. *grin*)
>
> Sorry, Ricky. But that won't work. EUI-64 is required for autoconfig,
> and it expands the 48 bits to 64 bits by inserting FFFF or FFFE
> depending on if the original is a MAC-48 or EUI-48 identifier.
I think Ricky's point is that he could do autoconfig in a /80 as long as there
isn't the semi-gratuitous MAC-48->EUI-64 expansion.
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