Dedicate a NIC to a Virtualbox VM

Posted by John Gardeniers on Server Fault See other posts from Server Fault or by John Gardeniers
Published on 2010-04-29T11:06:41Z Indexed on 2010/04/29 11:17 UTC
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Filed under:

virtualization

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Windows

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linux

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virtualbox

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nic

On a machine with multiple NICs, running either Windows or Linux, is it possible to dedicate a NIC to a VM such that the host won't even try to use it for itself? I suspect it isn't even possible but if it is, which OS and version and just how would I set it up?

The reason for this, apart from academic curiosity, is that I'm trying to set up a network lab for testing purposes. I currently have only a single spare machine, otherwise this wouldn't be an issue. One of the VMs will be the firewall for this lab network, so will need a dedicated NIC for the WAN interface. Neither ESXi nor Xen server will run on the machine, so I have to use a host OS.

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