What's an IP Address? IP (Internet Protocol), is a standard way
for computers to communicate. Generally, each computer has its
own unique number. When two computers communicate, they use IP
addresses to find one another. An IP Address is a set of 4
numbers between 0 and 255, each separated by a period. For
example: 192.168.123.254. Even if a computer has a "name" on the
network (to make it easier for you to remember), it still uses
an IP address to communicate with other machines. Messages or
requests from one computer to another are broadcast, and all of
the machines that are connected via an Ethernet cable can "hear"
the message. The machine that is the intended recipient of the
message responds, and the two machines transmit data to one
another. What do I need to create a network?