Re: [vserver] assigning less than /64 to individual guests

From: Eugen Leitl <eugen_at_leitl.org>
Date: Tue 17 May 2011 - 20:20:10 BST
Message-ID: <20110517192010.GM24232@leitl.org>

----- Forwarded message from Andrew Ruthven <andrew@etc.gen.nz> -----

From: Andrew Ruthven <andrew@etc.gen.nz>
Date: Wed, 18 May 2011 07:16:55 +1200
To: debian-ipv6@lists.debian.org
Subject: Re: [vserver] assigning less than /64 to individual guests
X-Mailer: Evolution 2.30.3

On Tue, 2011-05-17 at 13:10 -0400, Michael Richardson wrote:
> Permitting autoconfig to work seems like a nice thing to retain.

But not really necessary. For my vservers I allocate a /112 to them, on
dummy0 and route a /64 from eth0 to dummy0.

On some other vserver hosts where I can't setup routing for a new
address block, I allocate /112s listening on eth0. I still do SNAT for
IPv4 on dummy0. Quite handy, it means the vservers don't use up IPv4
addresses from the LAN, I still get outbound IPv4 transit, but I can get
to the vserver via IPv6.

Not much management overhead, and autoconfig isn't required for IPv6 to
work.

Cheers!

-- 
Andrew Ruthven
Wellington, New Zealand
At home: andrew@etc.gen.nz |      linux.conf.au 2012 
                           | Come with us, Under the Stars
                           | http://lcaunderthestars.org.au
----- End forwarded message -----
-- 
Eugen* Leitl leitl http://leitl.org
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Received on Tue May 17 20:20:19 2011
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