The instructions at page Vagrant with libvirt support installation will not work if using distro installed vagrant-libvirt and static ip addresses. Problem can be fixed by telling vagrant-libvirt to use qemu:///system instead of qemu:///session as the connection.
Vagrant.configure("2") do |config|
config.vm.provider :libvirt do |libvirt|
libvirt.qemu_use_session = false
end
end
Tested with fresh install of Fedora 34 (Workstation Edition). For more information see vagrant-libvirt/vagrant-libvirt#1389