今天下午我发现ADSL猫数据灯不停地闪，本地连接图标一直亮，在ZA防火墙里看见有大量UDP数据包入站，即使重启系统后还是这样，我甚至把ADSL猫关闭后再开也是这样子。请问，这是不是意味着有端口扫描工具在扫描我这个网段呢？
以下截取的是ZA防火墙的部分日志记录：
FWIN,2008/06/12,19:04:08 +8:00 GMT,151.37.165.215:4672,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:10 +8:00 GMT,91.78.27.93:27989,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:10 +8:00 GMT,81.211.245.146:63038,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:10 +8:00 GMT,83.41.148.47:54075,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:12 +8:00 GMT,151.56.77.217:4673,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:12 +8:00 GMT,213.140.16.185:44284,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:12 +8:00 GMT,79.27.148.3:31241,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:12 +8:00 GMT,124.79.174.183:6265,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:12 +8:00 GMT,87.15.137.203:4672,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:14 +8:00 GMT,83.190.145.61:11464,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:16 +8:00 GMT,58.33.44.130:5778,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:18 +8:00 GMT,200.223.93.17:58379,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:18 +8:00 GMT,59.38.227.173:4033,192.168.1.2:5625,UDP
FWIN,2008/06/12,19:04:18 +8:00 GMT,87.11.115.37:4672,192.168.1.2:5625,UDP
用户系统信息：Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
