2007-11-16, 03:37 PM | #1 | |
注册日期: 2007-07-17
住址: 火星
帖子: 5,570
现金:9873金币
资产:21334金币
|
网络故障检测与排除
当用户端出现网络故障时,请用户先依据以下步骤进行检测网络故障原因,看是自己计算机端故障,还是外界线路或其他故障,对于故障排除做到有的放矢。 1 Ping命令:验证本机到被Ping目标主机的物理线路连通性。 A.Ping 127.0.0.1 验证本机TCP/IP协议是否安装好; 单击操作系统的“开始”菜单,点击“运行”,在出现的“打开”命令框中键入“Ping 127.0.0.1”命令(图1): 图1 点击“打开”按钮,如出现如下所示字样,则表示本机TCP/IP协议安装完好: Pinging 127.0.0.1 with 32 bytes of data: Reply from 127.0.0.1: bytes=32 time<10ms TTL=128 Reply from 127.0.0.1: bytes=32 time<10ms TTL=128 Reply from 127.0.0.1: bytes=32 time<10ms TTL=128 Reply from 127.0.0.1: bytes=32 time<10ms TTL=128 Ping statistics for 127.0.0.1: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms 否则如出现如下所示字样,则表示本机TCP/IP协议安装不完整,请重新添加TCP/IP协议: Pinging 127.0.0.1 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 127.0.0.1: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms B.Ping 你的本机IP:验证你本机IP地址是否配置完成或者网卡物理属性是否完好; 例如Ping我的本机IP(192.168.0.1——举例,实践中是你主机对应的IP),如出现如下所示字样,则表示本机IP地址已配置好且网卡物理属性完好: Pinging 192.168.0.1 with 32 bytes of data: Reply from 192.168.0.1: bytes=32 time<10ms TTL=128 Reply from 192.168.0.1: bytes=32 time<10ms TTL=128 Reply from 192.168.0.1: bytes=32 time<10ms TTL=128 Reply from 192.168.0.1: bytes=32 time<10ms TTL=128 Ping statistics for 192.168.0.1: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms 否则如出现“Request timed out.”所示字样,则表示本机IP地址未配置好或网卡物理属性不好,请配置好IP地址,如果还有问题的话请更换你的网卡或重新安装你的网卡驱动程序试一下。 C.Ping 你的网关IP:验证从你本机到网关的物理线路是否连通; 例如Ping我的网关(192.168.0.2——举例,实践中是你主机对应的网关),如出现“Reply from.....”字样,则表示本机到它的网关物理线路连通性完好;否则如出现“Request timed out.”所示字样,则表示本机到它的网关物理线路连通性有故障,请联系网管解决。 1.2 Tracert命令:跟踪数据包到达目的主机的路径,可以探测网络故障是发生在校内还是校外。 例如跟踪到首都在线站点的路由:单击操作系统的“开始”菜单,点击“运行”,在出现的“打开”命令框中键入“Tracert www.263.net”命令,可以得到类似如以下字样的结果(“—>;”表解释说明): tracert www.263.net Tracing route to www.263.net [211.100.31.131] —>解析出首都在线站点的主机IP地址; over a maximum of 30 hops: 1 1 ms 2 ms 2 ms 202.195.112.3 —>到这一步,就说明校园网内的线路连通性完好,线路故障只能发生在校外了; 2 2 ms 2 ms 2 ms 210.29.46.5 3 3 ms 4 ms 4 ms 210.29.63.29 4 5 ms 5 ms 6 ms 210.29.63.1 5 6 ms 5 ms 5 ms 202.112.24.25 6* **Request timed out. —>说明从202.112.24.25到上一级路由器之间发生了故障,导致连接不了首都在线站点。 |
|
|
||
|