[CentOS] Connecting ethX devices directly to a KVM/QEMU guest OS (no bridging)

Jorge Fábregas jorge.fabregas at gmail.com
Wed Jan 18 22:49:11 UTC 2012

On 01/18/2012 05:49 PM, Tait Clarridge wrote:
> Create the 8 bridges that you need and go from there, you should be able
> to assign them in Virtual Machine Manager to the VMs.

Hello Tait,

I'm learning about ethernet bridges and how it is applied to virtual
networking.  It seems that, in the past,  after you created the virtual
bridge (br0, br1 etc) you had to create the taps with tunctl and THEN
you assigned those taps to your VMs.  And now it appears that
virt-manager doesn't need these taps and you can simply point the VM to
the proper bridge.  My question is:  are the taps being used behind the
scenes (is it something libvirt does for us) or are the tap interfaces
obsolete now?


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