iptable 快速操作映射
iptables -t nat -I PREROUTING -i pppoe-wan -p tcp --dport XXXX -j DNAT --to-destination IP:PORT
iptables -t nat -I PREROUTING -i pppoe-wan -p tcp --dport XXXX -j DNAT --to-destination IP:PORT
iptables -t nat -I PREROUTING -i pppoe-wan -p tcp --dport XXXX -j DNAT --to-destination IP:PORT
iptables -I INPUT -s 58.208.39.189 -j DROP