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Re: [Xen-devel] creating a xen-local LAN - how? heeeeellp!

To: Luke Kenneth Casson Leighton <lkcl@xxxxxxxx>
Subject: Re: [Xen-devel] creating a xen-local LAN - how? heeeeellp!
From: Mike Wray <mike.wray@xxxxxxxxxx>
Date: Mon, 29 Nov 2004 12:32:20 +0000
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Luke Kenneth Casson Leighton wrote:
hi there,

okay, i so somehow don't get this i am in need of quite a lot of help,
but fortunately i'm quite bright so anyone who _can_ help me should only
have to say things once :)

i'm looking to set up a network-isolated set of xen guests.

one or more of the xen guests will be running things like http
and https clients and so what i would like to do is to run an
HTTP and other proxies on the xen master.

the proxies i aim to bind to the xen interface on the xen
master, such that they will listen out for incoming requests
from the xen guest virtual eth0 cards, and the proxies will
be able to happily make outgoing connections on the _real_ eth0.

i don't want to create an eth0:1 unless it's absolutely necessary.

i dunno - how about i create a lo1 and get the xen-br0 to bind to that?

would that do the trick?

any hints and advice much appreciated.

You might find the vnet stuff recently checked-in to 2.0-testing
useful. Vnets provide virtual private lan segments to xen virtual
machines. From the point of view of a domain everything looks normal -
but in dom0 its traffic is wrapped inside a multipoint tunnel so it
cannot get at the real network - only its virtual private lan. This
works with domains on more than one machine.

It's pretty easy to set up, and if you want a machine to have
access to the physical network as well you just configure it
with 2 interfaces, one of them not on a vnet.

The code lives in tools/vnet, with instructions in tools/vnet/doc.


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