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Re: [Xen-users] Bad network performances

To: Lorenzo Milesi <lorenzo.milesi@xxxxxxxxxx>
Subject: Re: [Xen-users] Bad network performances
From: Vasil Valchev <vasil.val@xxxxxxxxx>
Date: Mon, 4 Jul 2011 14:23:13 +0300
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NAT means that the VM won't have an IP of the local lan, and cannot be reached by other hosts. I have running services there (smb, web)...

Actually this is not true. The VM will have a different IP and will not be accessed directly from physical hosts. But there is a thing called "port redirection". I don't know if you are familiar with it, but the basics are that you link a port of the "outside" interface to a port on your VM. That way if you want to access port 80 on the VM, you can redirect, for example, port 34564 of the host to port 80 to the VM (you can also redirect 80 to 80, just different IPs). If you have a just a few ports that you need to do this for it will work, but if there is something that dynamically opens ports it will be difficult.

Hope this helps you!

Vasil Valchev
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