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leonchik1976
Apprentice
Joined: 24 Jan 2010
Posts: 225
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 Posted: Wed Nov 01, 2017 9:58 am Post subject: Cannot create bridge interface |
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I'm trying to create a bridge interface with "Virtual Machine Manager", and no matter what i try, is gives me the following error
Error creating interface: 'Could not define interface: this function is not supported by the connection driver: virInterfaceDefineXML'
| Code: | Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/createinterface.py", line 1145, in do_install
self.interface.install(meter, create=activate)
File "/usr/share/virt-manager/virtinst/interface.py", line 258, in install
raise RuntimeError(_("Could not define interface: %s") % str(e))
RuntimeError: Could not define interface: this function is not supported by the connection driver: virInterfaceDefineXML
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any help would appreciated, thanks 
[Moderator edit: added [code] tags to preserve output layout. -Hu] |
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mike155
Advocate
Joined: 17 Sep 2010
Posts: 2668
Location: Frankfurt, Germany
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| Posted: Wed Nov 01, 2017 10:08 pm Post subject: |
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Hi leonchik1976,
you could try to set up the bridge manually -- in order to see whether the problems come from your kernel, your configuration tools or from your "Virtual Machine Manager":
| Code: | tunctl -u kvm -t tap0
tunctl -u kvm -t tap1
brctl addbr br0
brctl addif br0 tap0
brctl addif br0 tap1
brctl show br0 |
Mike |
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eccerr0r
Watchman
Joined: 01 Jul 2004
Posts: 7866
Location: almost Mile High in the USA
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| Posted: Thu Nov 02, 2017 5:50 pm Post subject: |
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As far as I know, VMM/libvirt/qemu can't create bridges, nor would it be proper for it to create bridges to nowhere. So yes, you have to make the bridge outside of VMM.
It can create an exit/tap off the bridge however, which is what I suppose was the intent of the option in VMM.
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bbgermany
Veteran
Joined: 21 Feb 2005
Posts: 1799
Location: Oranienburg/Germany
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| Posted: Fri Nov 03, 2017 5:33 am Post subject: |
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| eccerr0r wrote: | As far as I know, VMM/libvirt/qemu can't create bridges, nor would it be proper for it to create bridges to nowhere. So yes, you have to make the bridge outside of VMM.
It can create an exit/tap off the bridge however, which is what I suppose was the intent of the option in VMM. |
Hi, this is correct. You need to configure your bridge in /etc/conf.d/net first and start it, with the tap interface already connected to the bridge, before running vmm and creating a new vm.
greets, bb
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