The internet protocol uses unique addresses, simply called addresses, to identify computers or devices in a network.

IP Address, that is a unique address used to identify devices in a network

Once the twisted pair cable is connected and a network is established the led lights at the back of the computer should be steady. on most ethernet adapters nowadays, a steady green light means that the connection is actively connected to a valid partner at the opposite end. if the status of the led starts flashing, this means that there’s some activity and data is being transferred.