请教高手

natjack78

单台电脑用路由模式上网正常,接交换机同时联三台电脑就不行了,除了聊QQ其它什么都不能用,安全日志如下
2004/12/28 14:27:24    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:202.175.173.114 Port:0   
2004/12/28 14:27:24    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:202.175.173.114 Port:0   
2004/12/28 14:28:20    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 14:28:54    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 14:45:18    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 14:45:50    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 15:17:32    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:61.141.194.200  Port:0   
2004/12/28 15:17:38    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:61.141.194.200  Port:0   
2004/12/28 15:17:40    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:61.141.194.200  Port:0   
2004/12/28 15:17:43    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:61.141.194.200  Port:0   
2004/12/28 15:17:46    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:61.141.194.200  Port:0   
2004/12/28 15:17:49    Drop Packet <ICMP> Source IP:192.168.1.27    Port:0     Dest IP:61.141.194.200  Port:0   
2004/12/28 15:59:35    Drop Packet <ICMP> Source IP:61.183.206.129  Port:0     Dest IP:61.183.87.169   Port:0   
2004/12/28 17:34:55    Drop Packet <ICMP> Source IP:192.168.1.24    Port:0     Dest IP:202.102.135.114 Port:0   
2004/12/28 17:34:55    Drop Packet <ICMP> Source IP:192.168.1.24    Port:0     Dest IP:202.102.135.114 Port:0   
2004/12/28 17:34:55    Drop Packet <ICMP> Source IP:192.168.1.24    Port:0     Dest IP:202.102.135.114 Port:0   
2004/12/28 17:34:55    Drop Packet <ICMP> Source IP:192.168.1.24    Port:0     Dest IP:202.102.135.114 Port:0   
2004/12/28 18:01:43      Trojan Scan         <TCP>  Source IP:67.19.223.123   Port:80    Dest IP:61.183.87.169   Port:1243
2004/12/28 18:01:46      Trojan Scan         <TCP>  Source IP:67.19.223.123   Port:80    Dest IP:61.183.87.169   Port:1243
2004/12/28 18:01:47      Trojan Scan         <TCP>  Source IP:67.19.223.123   Port:80    Dest IP:61.183.87.169   Port:1243
2004/12/28 18:01:52      Trojan Scan         <TCP>  Source IP:67.19.223.123   Port:80    Dest IP:61.183.87.169   Port:1243
2004/12/28 18:01:53      Trojan Scan         <TCP>  Source IP:67.19.223.123   Port:80    Dest IP:61.183.87.169   Port:1243
2004/12/28 18:02:04      Trojan Scan         <TCP>  Source IP:67.19.223.123   Port:80    Dest IP:61.183.87.169   Port:1243
2004/12/28 18:02:05      Trojan Scan         <TCP>  Source IP:67.19.223.123   Port:80    Dest IP:61.183.87.169   Port:1243
2004/12/28 18:04:08    Drop Packet <ICMP> Source IP:192.168.1.24    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:04:08    Drop Packet <ICMP> Source IP:192.168.1.24    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:04:08    Drop Packet <ICMP> Source IP:192.168.1.24    Port:0     Dest IP:202.103.0.68    Port:0   
2004/12/28 18:10:47    Drop Packet <ICMP> Source IP:61.254.54.8     Port:0     Dest IP:61.183.87.169   Port:0   
2004/12/28 18:17:47    Drop Packet <ICMP> Source IP:61.41.236.207   Port:0     Dest IP:61.183.87.169   Port:0   
2004/12/28 18:55:28    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:55:33    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:55:38    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:55:44    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:55:49    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:55:55    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:56:00    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:56:06    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:56:11    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:56:17    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:56:22    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:56:28    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:56:33    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:56:39    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:57:26    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:57:31    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 18:57:36    Drop Packet <ICMP> Source IP:192.168.1.10    Port:0     Dest IP:202.103.24.68   Port:0   
2004/12/28 19:01:14    Drop Packet <ICMP> Source IP:61.183.86.227   Port:0     Dest IP:61.183.87.169   Port:0   
2004/12/28 19:01:15    Drop Packet <ICMP> Source IP:61.1.232.120    Port:0     Dest IP:61.183.87.169   Port:0   
2004/12/28 19:07:42    Drop Packet <ICMP> Source IP:192.168.1.3     Port:0     Dest IP:202.103.0.117   Port:0   
2004/12/28 19:07:43    Drop Packet <ICMP> Source IP:192.168.1.3     Port:0     Dest IP:202.103.0.117   Port:0  

zcwb

你的电脑设了DNS吗?