sun::iptables -t mangle -v -n -L PREROUTING
sun::systemctl stop strongswan
alice::systemctl stop strongswan
venus::systemctl stop strongswan
alice::iptables-restore < /etc/iptables.flush
venus::iptables-restore < /etc/iptables.flush
sun::iptables-restore < /etc/iptables.flush
moon::iptables-restore < /etc/iptables.flush