防火墙显示信息如下:[2006-09-17 22:30:38] 从218.7.112.239接收ICMP数据包, 对应的本机地址为59.40.156.60[2006-09-17 22:30:39] 从218.2.205.156接收ICMP数据包, 对应的本机地址为59.40.156.60[2006-09-17 22:35:24] 从61.47.117.175接收ICMP数据包, 对应的本机地址为59.40.156.60[2006-09-17 22:38:22] 从61.135.231.37接收ICMP数据包, 对应的本机地址为59.40.156.60[2006-09-17 22:40:30] 从81.219.213.156接收ICMP数据包, 对应的本机地址为59.40.156.60[2006-09-17 22:42:26] 从221.232.57.200接收ICMP数据包, 对应的本机地址为59.40.156.60[2006-09-17 22:42:26] 从221.226.136.106接收ICMP数据包, 对应的本机地址为59.40.156.60[2006-09-17 22:42:26] 从125.232.118.20接收ICMP数据包, 对应的本机地址为59.40.156.60[2006-09-17 22:42:26] 从121.32.125.221接收ICMP数据包, 对应的本机地址为59.40.156.60如何解决