[FredLUG] KVM and Virtual Network
Paul W. Frields
stickster at gmail.com
Thu Jan 21 11:53:50 EST 2010
On Thu, Jan 21, 2010 at 10:56:22AM -0500, Peter Larsen wrote:
> I know a few of you use/used Qemu/KVM; I'm trying to kick the
> VMware habbit here, but it's not turning out as easy as I thought
> it would be.
> Besides som minor issues with the storage that I finally figured
> out, I have great trouble with the network side. I simply want a
> bridged network so the VM uses the same DHCP server as the host
> does. However, the configuration for networking doesn't seem to
> be active in the very least.
> When using the "Virtual Network Editor" I get three networks
> defined: vmnet0 (bridged), vmnet1 (host-only) and vmnet8
> (NAT). All very straight forward and fairly easy to figure
> out. However, none of them are active for VMs to use. Instead
> "brctl show" returns virbr0 which is enabled in a configuration
> else-where. So how to enable the kvm-defined networks? When I
> try to assign network devices to a kvm, all I see is the NAT -
> everything else says the bridge is disabled. Since I don't even
> see the network names defined with kvm, I'm sure somekind of
> configuration points to the "wrong" place that ignores what the
> gui think is right - but where??
vmnet* interfaces are provided by VMWare, while KVM provides vnet*
Does this help?:
> Btw. the package qemu-kvm is empty on fedora 12??
'rpm -qi qemu-kvm' and then 'rpm -qR qemu-kvm' show you why. It's a
> When we did KVM at our fredlug meeting back in October (I think it was)
> that was my biggest issue and actually never got resolved. So I wonder if
> the F12 implementation somehow lacks the setup to be used in the way I
> want, and I fear I may have to become a KVM master to just get a VM using
> a bridge :( Please tell me that isn't the case; at least it's one of the
> reasons vmware may keep existing as the prime tool since this stuff simply
> just "works" out of the box (well, once you have figured out how to
> install it on the box that is - at least kvm/qemu is way easy there).
Nope, not at all. I believe you can do this by right-clicking on the
hypervisor in the virt-manager GUI, and choosing "Details." There you
can add more virtual networks through the GUI tool.
Paul W. Frields http://paul.frields.org/
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