Pinging from another computer over same network
Now that we have our computer on the network, we want to make sure other computers are able to contact it. The ping
command is one of the first tests to tell whether your computer can be contacted. The command sends a small test packet of data to another computer's IP address or hostname and waits to hear a response. If it does, it tells you how long it took for the response to come back. If it doesn't, it tells you it is not receiving a response.
Note
Some computer systems have firewalls that do not allow ICMP ECHO attempts. This means that even though the computer is available on the network, attempts to ping it will fail. On the default configuration of Raspbian, ping
commands are allowed, so attempts to ping your Pi should succeed.
Getting ready
As long you as you know your IP address (whether it was dynamically assigned using DHCP or you assigned a static IP from the previous recipe), you should be able to contact it from your network. The...