[Unit] Description=IPv4 Packet Filtering Framework DefaultDependencies=no Before=network-pre.target Wants=network-pre.target [Service] Type=oneshot ExecStart=/sbin/iptables-restore /etc/iptables/rules.v4 ExecReload=/sbin/iptables-restore /etc/iptables/rules.v4 RemainAfterExit=yes [Install] WantedBy=multi-user.target