PING: Checking Connectivity
As you might know, a submarine can detect a nearby object by using sonar to send out a sound wave and then seeing whether the wave is reflected. This is called pinging an object.
Windows 8 has a PING command that performs a similar function. PING sends out a special type of IP packet—called an Internet Control Message Protocol (ICMP) echo packet—to a remote location. This packet requests that the remote location send back a response packet. PING then tells you whether the response was received. In this way, you can check your network configuration to see whether your computer can connect with a remote host.
To use PING, first open a command-line session by selecting Start, All Programs, Accessories, Command Prompt. ...
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