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发表于 2005-1-15 10:16:20
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QUOTE (dajun @ Jan 15 2005, 03:19 AM)
我用局域网的一台LINUX客户机PING RouteOS路由的结果如下:(注:192.168.0.211是RouteOS的内部IP地址)[root@SV root]# ping 192.168.0.211PING 192.168.0.211 (192.168.0.211) 56(84) bytes of data.From 192.168.0.5: icmp_seq=1 Redirect Host(New nexthop: 192.168.0.211)64 bytes from 192.168.0.211: icmp_seq=1 ttl=63 time=0.505 msFrom 192.168.0.5: icmp_seq=2 Redirect Host(New nexthop: 192.168.0.211)64 bytes from 192.168.0.211: icmp_seq=2 ttl=63 time=0.488 msFrom 192.168.0.5: icmp_seq=3 Redirect Host(New nexthop: 192.168.0.211)64 bytes from 192.168.0.211: icmp_seq=3 ttl=63 time=0.534 msFrom 192.168.0.5: icmp_seq=4 Redirect Host(New nexthop: 192.168.0.211)64 bytes from 192.168.0.211: icmp_seq=4 ttl=63 time=0.607 msFrom 192.168.0.5: icmp_seq=5 Redirect Host(New nexthop: 192.168.0.211)64 bytes from 192.168.0.211: icmp_seq=5 ttl=63 time=0.497 ms--- 192.168.0.211 ping statistics ---9 packets transmitted, 9 received, 0% packet loss, time 7996msrtt min/avg/max/mdev = 0.488/0.551/0.682/0.078 ms(注:路由器已经进行了IP与MAC绑定,路由器内部网卡已设置arp=reply-only)现在的状况是,过十几分钟一掉线。而且掉线的时间仅十几秒又能自动连接上。我用RouteOS两个月以来还是第一次出现这种情况。我怀疑是病毒在作怪;因为上面的TTL=63明显不对,ping值是从192.168.0.5这台机器上回应的。我找到192.168.0.5那台机器。然后把它关机,这时下面的所有客户机都同时掉线。大约30秒钟后ping 192.168.0.211 恢复正常TTL=64大家能帮我分析一下吗?有什么办法可以防止这种情况的再次发生。谢谢!!
从你描述的情况看,好像是你的内网有监听的计算机。用扫描软件看看,你的内网有没有混合型的网卡。 |
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