sun::systemctl stop strongswan-swanctl
alice::systemctl stop strongswan-swanctl
venus::systemctl stop strongswan-swanctl
alice::iptables-restore < /etc/iptables.flush
venus::iptables-restore < /etc/iptables.flush
sun::iptables-restore < /etc/iptables.flush
moon::iptables -t nat -F