[138043] in North American Network Operators' Group
Re: Mac OS X 10.7, still no DHCPv6
daemon@ATHENA.MIT.EDU (Karl Auer)
Sun Feb 27 17:29:59 2011
From: Karl Auer <kauer@biplane.com.au>
To: nanog@nanog.org
In-Reply-To: <A73628F8-9D2A-42DB-940D-B51D680EC95F@ukbroadband.com>
Date: Mon, 28 Feb 2011 09:32:52 +1100
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Sun, 2011-02-27 at 14:47 +0000, Leigh Porter wrote:
> Does anybody have anything neat to keep logs of what host gets what
> ipv6 address in an SLAAC environment?
How do you define "what host"? If it's by MAC address (and you are not
using temporary, cryptographic or random addresses), then the MAC is in
the address the host ends up using.
Also, as someone else said, hosts don't "get" addresses via SLAAC - they
generate them. That means that while you may be able to predict what
they *will* use, you would need to snoop NDP to find out what they *are*
using, and even more so for temporary, cryptographic and random
addresses.
I have no experience of anything that actually does this, but it would
be fairly simple to do. NDP will end up snooped in routers and switches
for lots of reasons, so expect to see such features in real kit pretty
soon. Make sure you let your vendor know what you want/need...
Regards, K.
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Karl Auer (kauer@biplane.com.au) +61-2-64957160 (h)
http://www.biplane.com.au/kauer/ +61-428-957160 (mob)
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