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I have a kvm guest using nat (usermode networking). Because virsh in ubuntu 18.04 does not support netcf I cannot use nwfilter to control the traffic of the vm. How can I restrict the access of the vm to a set of IP adresses?

Mathias

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So for now I am using the /etc/libvirt/hooks/network hook: In this hook I dump the iptable-rules created by libvirt and look for the default forwarding rule for the bridge the vm is connected to. If the rule is there, it is replaced by a set of my restricted rules. If not, I assume the restricted rules are already in place.

This workaround works for me.

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