请问这是正常?(ping问题)
2008-06-11 21:45:02, 系统允许接收ICMP数据包；地址为：21X.1X.137.XX <= 59.34.138.1 Code=0, Type=0 ；满足规则：允许Ping出
2008-06-11 21:45:02, 系统允许发送ICMP数据包；地址为：21X.1X.137.XX => 59.34.138.1 Code=0, Type=8 ；满足规则：允许Ping出
2008-06-11 21:44:59, 系统允许接收ICMP数据包；地址为：21X.1X.137.XX <= 59.34.138.1 Code=0, Type=0 ；满足规则：允许Ping出
2008-06-11 21:44:59, 系统允许发送ICMP数据包；地址为：21X.1X.137.XX => 59.34.138.1 Code=0, Type=8 ；满足规则：允许Ping出
2008-06-11 21:44:57, 系统允许接收ICMP数据包；地址为：21X.1X.137.XX <= 59.34.138.1 Code=0, Type=0 ；满足规则：允许Ping出
2008-06-11 21:44:57, 系统允许发送ICMP数据包；地址为：21X.1X.137.XX => 59.34.138.1 Code=0, Type=8 ；满足规则：允许Ping出
2008-06-11 21:44:56, 系统允许接收ICMP数据包；地址为：21X.1X.137.XX <= 59.34.138.1 Code=0, Type=0 ；满足规则：允许Ping出
