IP address is the numeric value that is given to each and every communication device. 192.168.0.1 (this is under IPV4 internet protocol version 4) is the IP address that is maintained in maximum number of D-Link Router Login Password communication devices, it is the internet protocol address, the main function of the IP address is to identify host and the location tracking. These devices may be router, printer, computer. This IP address can be changed through opening the control panel or management console panel of the router.