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急急急!!!办公网经常出现频繁掉线,三五分钟就掉一次。求助!!! [复制链接]

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发表于 2009-06-04 10:58 |显示全部楼层
急急急!!!办公网经常出现频繁掉线,三五分钟就掉一次。求助!!!

最近办公网经常频繁掉线。有20台PC使用。
以前使用modem+交换机都没有出现过经常掉线。以为是流量过大,modem承载不了。从出现经常掉线后改变了拨号方式,使用路由器自动拨号。
现在的网路有构建是ADSLmodem->路由器->交换机->PC或HUB。

路由器型号是808HV
以下是路由器的log
Thu Jun 04 10:11:16 2009  Disassociated: Blocked access attempt from 211.154.220.16:6000 to TCP port 135
Thu Jun 04 10:13:48 2009  Disassociated: Blocked access attempt from 61.160.213.214:6000 to TCP port 8090
Thu Jun 04 10:14:46 2009  Disassociated: Blocked access attempt from 124.42.11.90:6000 to TCP port 135
Thu Jun 04 10:16:42 2009 LCP terminate recv
Thu Jun 04 10:16:43 2009 Connection is broken
Thu Jun 04 10:16:43 2009 PPPoE start to hang-up
Thu Jun 04 10:16:48 2009 PADT sent
Thu Jun 04 10:16:48 2009 DOD:TCP trigger from 192.168.0.169:1518 to 202.99.22.25:443
Thu Jun 04 10:16:48 2009 PPPoE start to dial-up
Thu Jun 04 10:16:48 2009 PADI sent
Thu Jun 04 10:16:48 2009 PADR sent
Thu Jun 04 10:16:48 2009 PADS recv 8002 BD31
Thu Jun 04 10:16:48 2009 PAP3: Authentication success,Welcome!
Thu Jun 04 10:16:48 2009 IPCP3: IP is 114.245.179.5
Thu Jun 04 10:16:48 2009 IPCP3: DNS0 is 202.106.195.68
Thu Jun 04 10:16:48 2009 IPCP3: DNS1 is 202.106.46.151
Thu Jun 04 10:19:21 2009 Connection is broken
Thu Jun 04 10:19:21 2009 PPPoE start to hang-up
Thu Jun 04 10:19:26 2009 PADT sent
Thu Jun 04 10:19:26 2009 DOD:TCP trigger from 192.168.0.43:2112 to 61.144.235.23:7708
Thu Jun 04 10:19:26 2009 PPPoE start to dial-up
Thu Jun 04 10:19:26 2009 PADI sent
Thu Jun 04 10:19:27 2009 PADI sent
Thu Jun 04 10:19:27 2009 PADI sent
Thu Jun 04 10:19:29 2009 DOD:TCP trigger from 192.168.0.43:2117 to 61.135.155.21:80
Thu Jun 04 10:19:29 2009 PPPoE start to dial-up
Thu Jun 04 10:19:29 2009 PADI:3com sent
Thu Jun 04 10:19:30 2009 PADI:3com sent
Thu Jun 04 10:19:30 2009 PADI:3com sent
Thu Jun 04 10:19:33 2009 DOD:192.168.0.137 query DNS for gateway.messenger.hotmail.com
Thu Jun 04 10:19:33 2009 PPPoE start to dial-up
Thu Jun 04 10:19:33 2009 PADI sent
Thu Jun 04 10:19:33 2009 PADI sent
Thu Jun 04 10:19:34 2009 PADI sent
Thu Jun 04 10:19:36 2009 DOD:UDP trigger from 192.168.0.45:4000 to 219.133.49.170:8000
Thu Jun 04 10:19:36 2009 PPPoE start to dial-up
Thu Jun 04 10:19:36 2009 PADI:3com sent
Thu Jun 04 10:19:36 2009 PADI:3com sent
Thu Jun 04 10:19:37 2009 PADI:3com sent
Thu Jun 04 10:19:39 2009 DOD:TCP trigger from 192.168.0.137:2407 to 121.0.19.172:8080
Thu Jun 04 10:19:39 2009 PPPoE start to dial-up
Thu Jun 04 10:19:39 2009 PADI sent
Thu Jun 04 10:19:40 2009 PADI sent
Thu Jun 04 10:19:40 2009 PADI sent
Thu Jun 04 10:19:42 2009 DOD:TCP trigger from 192.168.0.45:2732 to 202.108.88.8:443
Thu Jun 04 10:19:42 2009 PPPoE start to dial-up
Thu Jun 04 10:19:42 2009 PADI:3com sent
Thu Jun 04 10:19:43 2009 PADI:3com sent
Thu Jun 04 10:19:43 2009 PADI:3com sent
Thu Jun 04 10:19:45 2009 DOD:TCP trigger from 192.168.0.198:1084 to 219.133.60.153:80
Thu Jun 04 10:19:45 2009 PPPoE start to dial-up
Thu Jun 04 10:19:45 2009 PADI sent
Thu Jun 04 10:19:46 2009 PADI sent
Thu Jun 04 10:19:46 2009 PADI sent
Thu Jun 04 10:19:48 2009 DOD:TCP trigger from 192.168.0.198:1086 to 58.61.34.51:80
Thu Jun 04 10:19:48 2009 PPPoE start to dial-up
Thu Jun 04 10:19:48 2009 PADI:3com sent
Thu Jun 04 10:19:49 2009 PADI:3com sent
Thu Jun 04 10:19:49 2009 PADI:3com sent
Thu Jun 04 10:19:52 2009 DOD:192.168.0.45 query DNS for tcpconn.tencent.com
Thu Jun 04 10:19:52 2009 PPPoE start to dial-up
Thu Jun 04 10:19:52 2009 PADI sent
Thu Jun 04 10:19:52 2009 PADI sent
Thu Jun 04 10:19:53 2009 PADI sent
Thu Jun 04 10:19:55 2009 DOD:192.168.0.45 query DNS for tcpconn.tencent.com
Thu Jun 04 10:19:55 2009 PPPoE start to dial-up
Thu Jun 04 10:19:55 2009 PADI:3com sent
Thu Jun 04 10:19:55 2009 PADI:3com sent
Thu Jun 04 10:19:56 2009 PADI:3com sent
Thu Jun 04 10:19:58 2009 DOD:UDP trigger from 192.168.0.103:4031 to 119.147.13.244:8000
Thu Jun 04 10:19:58 2009 PPPoE start to dial-up
Thu Jun 04 10:19:58 2009 PADI sent
Thu Jun 04 10:19:58 2009 PADI sent
Thu Jun 04 10:19:59 2009 PADI sent
Thu Jun 04 10:20:01 2009 DOD:TCP trigger from 192.168.0.45:2739 to 202.108.88.8:80
Thu Jun 04 10:20:01 2009 PPPoE start to dial-up
Thu Jun 04 10:20:01 2009 PADI:3com sent
Thu Jun 04 10:20:01 2009 PADI:3com sent
Thu Jun 04 10:20:02 2009 PADI:3com sent
Thu Jun 04 10:20:04 2009 DOD:TCP trigger from 192.168.0.45:2739 to 202.108.88.8:80
Thu Jun 04 10:20:04 2009 PPPoE start to dial-up
Thu Jun 04 10:20:04 2009 PADI sent
Thu Jun 04 10:20:04 2009 PADI sent
Thu Jun 04 10:20:05 2009 PADI sent
Thu Jun 04 10:20:07 2009 DOD:192.168.0.107 query DNS for www.microsoft.com
Thu Jun 04 10:20:07 2009 PPPoE start to dial-up
Thu Jun 04 10:20:07 2009 PADI:3com sent
Thu Jun 04 10:20:08 2009 PADI:3com sent
Thu Jun 04 10:20:08 2009 PADI:3com sent
Thu Jun 04 10:20:10 2009 DOD:192.168.0.130 query DNS for gateway.messenger.hotmail.com
Thu Jun 04 10:20:10 2009 PPPoE start to dial-up
Thu Jun 04 10:20:10 2009 PADI sent
Thu Jun 04 10:20:11 2009 PADI sent
Thu Jun 04 10:20:11 2009 PADI sent
Thu Jun 04 10:20:13 2009 DOD:TCP trigger from 192.168.0.135:4515 to 123.125.56.250:80
Thu Jun 04 10:20:13 2009 PPPoE start to dial-up
Thu Jun 04 10:20:13 2009 PADI:3com sent
Thu Jun 04 10:20:14 2009 PADI:3com sent
Thu Jun 04 10:20:14 2009 PADI:3com sent
Thu Jun 04 10:20:16 2009 DOD:192.168.0.171 query DNS for c.alerts.xiaoi.net
Thu Jun 04 10:20:16 2009 PPPoE start to dial-up
Thu Jun 04 10:20:16 2009 PADI sent
Thu Jun 04 10:20:17 2009 PADI sent
Thu Jun 04 10:20:17 2009 PADI sent
Thu Jun 04 10:20:19 2009 DOD:192.168.0.171 query DNS for c.alerts.xiaoi.net
Thu Jun 04 10:20:19 2009 PPPoE start to dial-up
Thu Jun 04 10:20:19 2009 PADI:3com sent
Thu Jun 04 10:20:20 2009 PADI:3com sent
Thu Jun 04 10:20:20 2009 PADI:3com sent
Thu Jun 04 10:20:22 2009 DOD:TCP trigger from 192.168.0.198:1106 to 58.251.60.182:80
Thu Jun 04 10:20:22 2009 PPPoE start to dial-up
Thu Jun 04 10:20:22 2009 PADI sent
Thu Jun 04 10:20:23 2009 PADR sent
Thu Jun 04 10:20:23 2009 PADS recv 8002 ED08
Thu Jun 04 10:20:23 2009 PAP3: Authentication success,Welcome!
Thu Jun 04 10:20:23 2009 IPCP3: IP is 114.245.211.248
Thu Jun 04 10:20:23 2009 IPCP3: DNS0 is 202.106.195.68
Thu Jun 04 10:20:23 2009 IPCP3: DNS1 is 202.106.46.151
Thu Jun 04 10:21:27 2009  Disassociated: Blocked access attempt from 220.134.154.73:3370 to TCP port 28787
Thu Jun 04 10:21:28 2009  Disassociated: Blocked access attempt from 222.186.13.75:6000 to TCP port 8089
Thu Jun 04 10:21:30 2009  Disassociated: Blocked access attempt from 220.134.154.73:3370 to TCP port 28787
Thu Jun 04 10:21:36 2009  Disassociated: Blocked access attempt from 220.134.154.73:3370 to TCP port 28787
Thu Jun 04 10:23:23 2009 LCP terminate recv
Thu Jun 04 10:23:23 2009 Connection is broken
Thu Jun 04 10:23:23 2009 PPPoE start to hang-up
Thu Jun 04 10:23:23 2009 PADT sent
Thu Jun 04 10:23:23 2009 DOD:192.168.0.135 query DNS for www.kaixin001.com
Thu Jun 04 10:23:23 2009 PPPoE start to dial-up
Thu Jun 04 10:23:23 2009 PADI sent
Thu Jun 04 10:23:24 2009 PADI sent
Thu Jun 04 10:23:24 2009 PADI sent
Thu Jun 04 10:23:26 2009 DOD:TCP trigger from 192.168.0.130:3393 to 207.46.26.13:80
Thu Jun 04 10:23:26 2009 PPPoE start to dial-up
Thu Jun 04 10:23:26 2009 PADI:3com sent
Thu Jun 04 10:23:27 2009 PADI:3com sent
Thu Jun 04 10:23:27 2009 PADI:3com sent
Thu Jun 04 10:23:29 2009 DOD:TCP trigger from 192.168.0.45:2762 to 59.42.247.80:80
Thu Jun 04 10:23:29 2009 PPPoE start to dial-up
Thu Jun 04 10:23:29 2009 PADI sent
Thu Jun 04 10:23:30 2009 PADI sent
Thu Jun 04 10:23:30 2009 PADI sent
Thu Jun 04 10:23:32 2009 DOD:TCP trigger from 192.168.0.171:2464 to 207.46.125.40:1863
Thu Jun 04 10:23:32 2009 PPPoE start to dial-up
Thu Jun 04 10:23:32 2009 PADI:3com sent
Thu Jun 04 10:23:33 2009 PADI:3com sent
Thu Jun 04 10:23:33 2009 PADI:3com sent
Thu Jun 04 10:23:35 2009 DOD:TCP trigger from 192.168.0.130:3404 to 207.46.26.199:80
Thu Jun 04 10:23:35 2009 PPPoE start to dial-up
Thu Jun 04 10:23:35 2009 PADI sent
Thu Jun 04 10:23:36 2009 PADI sent
Thu Jun 04 10:23:36 2009 PADI sent
Thu Jun 04 10:23:39 2009 DOD:192.168.0.43 query DNS for gateway.messenger.hotmail.com
Thu Jun 04 10:23:39 2009 PPPoE start to dial-up
Thu Jun 04 10:23:39 2009 PADI:3com sent
Thu Jun 04 10:23:39 2009 PADI:3com sent
Thu Jun 04 10:23:40 2009 PADI:3com sent
Thu Jun 04 10:23:42 2009 DOD:192.168.0.137 query DNS for smms.allyes.cn
Thu Jun 04 10:23:42 2009 PPPoE start to dial-up
Thu Jun 04 10:23:42 2009 PADI sent
Thu Jun 04 10:23:42 2009 PADI sent
Thu Jun 04 10:23:43 2009 PADI sent
Thu Jun 04 10:23:45 2009 DOD:192.168.0.137 query DNS for smms.allyes.cn
Thu Jun 04 10:23:45 2009 PPPoE start to dial-up
Thu Jun 04 10:23:45 2009 PADI:3com sent
Thu Jun 04 10:23:45 2009 PADI:3com sent
Thu Jun 04 10:23:46 2009 PADI:3com sent
Thu Jun 04 10:23:48 2009 DOD:TCP trigger from 192.168.0.85:2339 to 218.106.248.85:110
Thu Jun 04 10:23:48 2009 PPPoE start to dial-up
Thu Jun 04 10:23:48 2009 PADI sent
Thu Jun 04 10:23:48 2009 PADI sent
Thu Jun 04 10:23:49 2009 PADI sent
Thu Jun 04 10:23:51 2009 DOD:TCP trigger from 192.168.0.45:2756 to 207.46.26.254:7001
Thu Jun 04 10:23:51 2009 PPPoE start to dial-up
Thu Jun 04 10:23:51 2009 PADI:3com sent
Thu Jun 04 10:23:51 2009 PADI:3com sent
Thu Jun 04 10:23:52 2009 PADI:3com sent
Thu Jun 04 10:23:54 2009 DOD:192.168.0.45 query DNS for sup.live.com
Thu Jun 04 10:23:54 2009 PPPoE start to dial-up
Thu Jun 04 10:23:54 2009 PADI sent
Thu Jun 04 10:23:54 2009 PADI sent
Thu Jun 04 10:23:55 2009 PADI sent
Thu Jun 04 10:23:57 2009 DOD:TCP trigger from 192.168.0.130:3440 to 64.4.36.24:80
Thu Jun 04 10:23:57 2009 PPPoE start to dial-up
Thu Jun 04 10:23:57 2009 PADI:3com sent
Thu Jun 04 10:23:57 2009 PADI:3com sent
Thu Jun 04 10:23:58 2009 PADI:3com sent
Thu Jun 04 10:24:00 2009 DOD:TCP trigger from 192.168.0.171:2494 to 124.115.3.20:8000
Thu Jun 04 10:24:00 2009 PPPoE start to dial-up
Thu Jun 04 10:24:00 2009 PADI sent
Thu Jun 04 10:24:00 2009 PADR sent
Thu Jun 04 10:24:00 2009 PADS recv 8002 DD1E
Thu Jun 04 10:24:00 2009 PAP3: Authentication success,Welcome!
Thu Jun 04 10:24:00 2009 IPCP3: IP is 114.245.192.17
Thu Jun 04 10:24:00 2009 IPCP3: DNS0 is 202.106.195.68
Thu Jun 04 10:24:00 2009 IPCP3: DNS1 is 202.106.46.151
Thu Jun 04 10:26:55 2009  Disassociated: Blocked access attempt from 67.82.117.172:42285 to UDP port 55749
Thu Jun 04 10:26:57 2009  Disassociated: Blocked access attempt from 67.82.117.172:42285 to UDP port 55749
Thu Jun 04 10:27:02 2009  Disassociated: Blocked access attempt from 67.82.117.172:42285 to UDP port 55749
Thu Jun 04 10:28:29 2009  Disassociated: Blocked access attempt from 211.157.109.10:6000 to TCP port 445
Thu Jun 04 10:29:29 2009  Disassociated: Blocked access attempt from 58.221.28.113:6000 to TCP port 8090
Thu Jun 04 10:30:00 2009  Disassociated: Blocked access attempt from 211.157.115.71:6000 to TCP port 135
Thu Jun 04 10:30:05 2009  Disassociated: Blocked access attempt from 67.82.117.172:42285 to UDP port 55749
Thu Jun 04 10:30:07 2009  Disassociated: Blocked access attempt from 67.82.117.172:42285 to UDP port 55749
Thu Jun 04 10:30:11 2009  Disassociated: Blocked access attempt from 67.82.117.172:42285 to UDP port 55749

论坛徽章:
0
发表于 2009-06-04 11:30 |显示全部楼层
传说中的ARP。。。。

论坛徽章:
0
发表于 2009-06-04 14:43 |显示全部楼层
一般是病毒

论坛徽章:
0
发表于 2009-06-04 15:01 |显示全部楼层
没有人知道吗

论坛徽章:
1
IT运维版块每日发帖之星
日期:2015-11-17 06:20:00
发表于 2009-06-04 17:31 |显示全部楼层
多半是ARP攻击所致

论坛徽章:
5
IT运维版块每日发帖之星
日期:2015-08-06 06:20:00IT运维版块每日发帖之星
日期:2015-08-10 06:20:00IT运维版块每日发帖之星
日期:2015-08-23 06:20:00IT运维版块每日发帖之星
日期:2015-08-24 06:20:00IT运维版块每日发帖之星
日期:2015-11-12 06:20:00
发表于 2009-06-04 19:28 |显示全部楼层
你的路由器可以看CPU和MEMORY还有接口状态吗?
这类情况大多是攻击所致了。

论坛徽章:
0
发表于 2009-06-05 12:53 |显示全部楼层
哈哈...做好防御措施吧....

论坛徽章:
0
发表于 2009-06-05 16:32 |显示全部楼层
有没有尝试单机接入,是否有这样的问题?
首先用排除法来分析。

论坛徽章:
0
发表于 2009-06-08 17:11 |显示全部楼层
应该是病毒

论坛徽章:
0
发表于 2009-06-08 17:19 |显示全部楼层
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