40.在某台主机上无法访问域名为www.bbb.cn的网站,而局域网中的其他主机可正常访问,在该主机上执行ping命令时有如下所示的信息:
C:\>ping www.bbb.cn
Pinging www.bbb.cn [202.112.0.36] with 32 bytes of data:
Replay from 202.112.0.36:Destination net unreachable.
Replay from 202.112.0.36:Destination net unreachable.
Replay from 202.112.0.36:Destination net unreachable.
Replay from 202.112.0.36:Destination net unreachable.
Ping statistics for 202.112.0.36:
Packets:Sent = 4,Received = 4,Lost = 0(0%loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms,Maximum =0ms,Average =0ms
分析以上信息,可能造成该现象的原因是( )。