参加下图,出现默认网关Ping 不通的情况,出问题的协议层是( )。
C: \>ping 10.10.10.1
Pinging 10.10.10.1 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 10.10.10.1:
Packets: Sent=4 ,Received=0,Lost=4 (100% loss)