Question: What is 192.168.0.1 IP address?
192.168.0.1 is a gateway IP address after you have enabled Internet Connection Sharing to share Internet connection. Check this Internet Connection Sharing tutorial to get more info.
It is also common factory default IP address for router, access point or other network devices which are manufactured by Dlink or other manufacturers. You can access the router management page by pointing to this IP by using web browser. Read the router manual to learn more on how to configure router. Check this wireless router or wired network router configuration article if you have configuration problem.
It's also part of 192.168.0.0/16 network, Class C private IP address block that is commonly used to set up private home network.