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Re: cant create network with virt-manager



On 9/21/20 3:58 PM, Marko Horn wrote:

hello list,
i cant create an isolated network with the virt-manager.

installed version virt-manager 3.0.0
installed version libvirt 6.2.0

output in error-message:

Error creating virtual network: internal error: Failed to apply firewall rules /sbin/iptables -w --table filter --insert LIBVIRT_INP --in-interface virbr3 --protocol tcp --destination-port 67 --jump ACCEPT: iptables: No chain/target/match by that name.

I may be remembering incorrectly (I think there might have been as similar bug of the same vintage), but it is possibly caused by this bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1813830

It was fixed upstream in libvirt-6.4.0. If you're building from upstream yourself, then grab the latest master. If you're running a downstream distro build, ask them to backport the patches detailed in the above (Fedora) bug report.




Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 66, in cb_wrapper
     callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/createnet.py", line 428, in _async_net_create
     netobj.create()
   File "/usr/lib/python3.7/site-packages/libvirt.py", line 3174, in create
    if ret == -1: raise libvirtError ('virNetworkCreate() failed', net=self) libvirt.libvirtError: internal error: Failed to apply firewall rules /sbin/iptables -w --table filter --insert LIBVIRT_INP --in-interface virbr3 --protocol tcp --destination-port 67 --jump ACCEPT: iptables: No chain/target/match by that name

any ideas?

thank you
marko




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