在一台主机A(16.0.0.2)上使用Ping命令测试与另一台主机B(11.0.0.2)连通性时有如下信息: C:\>ping 11.0.0.2 Reply from 16.0.0.1 Destination Host Unreachable. Reply from 16.0.0.1 Destination Host Unreachable. Reply from 16.0.0.1 Destination Host Unreachable. Reply from 16.0.0.1 Destination Host Unreachable. Ping statistics for 16.0.0.2 Packets: Sent=4,Received=0,Lost=4(100 % loss) 分析以上信息,产生故障的可能原因是( )