nft \ -ae insert \ rule \ ip \ libvirt_network \ guest_output \ iif \ virbr0 \ counter \ reject nft \ -ae insert \ rule \ ip \ libvirt_network \ guest_input \ oif \ virbr0 \ counter \ reject nft \ -ae insert \ rule \ ip \ libvirt_network \ guest_cross \ iif \ virbr0 \ oif \ virbr0 \ counter \ accept nft \ -ae insert \ rule \ ip6 \ libvirt_network \ guest_output \ iif \ virbr0 \ counter \ reject nft \ -ae insert \ rule \ ip6 \ libvirt_network \ guest_input \ oif \ virbr0 \ counter \ reject nft \ -ae insert \ rule \ ip6 \ libvirt_network \ guest_cross \ iif \ virbr0 \ oif \ virbr0 \ counter \ accept