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[Xen-users] Making a VM directly accessible from a public IP

To: "Xen users mailing list" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] Making a VM directly accessible from a public IP
From: Thomas <iamkenzo@xxxxxxxxx>
Date: Thu, 17 Jul 2008 22:48:12 +0200
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Currently my Xen server is working like a charm. I use Xen 3.2.1 with
a Debian Etch Dom0 and Etch DomU. The VM have access to the
network/internet  using NAT. Each VM is given a virtual network
interface and a private IP 10.0.0.x. What I would like to do know is
that a VM can be directly accessible from another public IP.

So my physical server is at 91.121.xx.xx. My VM is at (on
that server), and I have a free IP address 91.121.yy.yy (IP failover
actually) that points to my physical server.

iptables can only redirect packets to an IP that is on the same network.

How can I do that? Do I need to specify it in the DomU configuration
file as an additionnal network interface for my domU? Can you point me
to some resource about that?


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