[Unit]
Description=IPv4 Packet Filtering Framework
Before=network-pre.target
Wants=network-pre.target

[Service]
Type=oneshot
ExecStart=/sbin/iptables-restore /usr/share/iptables/iptables.rules
ExecReload=/sbin/iptables-restore /usr/share/iptables/iptables.rules
ExecStop=/bin/bash /usr/share/iptables/iptables-flush.sh
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target