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

From: Eugen Leitl <>
Date: Tue 17 May 2011 - 20:20:10 BST
Message-ID: <>

----- Forwarded message from Andrew Ruthven <> -----

From: Andrew Ruthven <>
Date: Wed, 18 May 2011 07:16:55 +1200
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


Andrew Ruthven
Wellington, New Zealand
At home: | 2012 
                           | Come with us, Under the Stars
----- End forwarded message -----
Eugen* Leitl leitl
ICBM: 48.07100, 11.36820
8B29F6BE: 099D 78BA 2FD3 B014 B08A  7779 75B0 2443 8B29 F6BE
Received on Tue May 17 20:20:19 2011
[Next/Previous Months] [Main vserver Project Homepage] [Howto Subscribe/Unsubscribe] [Paul Sladen's vserver stuff]
Generated on Tue 17 May 2011 - 20:20:19 BST by hypermail 2.1.8