[Unit] Description=IPv6 Firewall with ip6tables After=network.target [Service] SyslogIdentifier="ip6t-gateway" Type=oneshot RemainAfterExit=yes ExecStart=/usr/local/sbin/ip6t-firewall-gateway start ExecStop=/usr/local/sbin/ip6t-firewall-gateway stop User=root [Install] WantedBy=multi-user.target