You are pinging YOURSELF. You are trying to access your computer in a HTTP browser.Every device has a unique number called Internet Protocol address assigned to them in a network. They use this number as THEIR address and communicate to other devices via their unique IP addresses.You router's IP address is configured as 192.168.1.1 in its software. To talk to it, you must be in the same network and have a unique IP for you and also know the IP of the router.The subnet 255.255.255.0 defines the network in which both your PC and router are and 192.168.1.200 is the IP of your computer.Ping the router's IP and try to access 192.168.1.1 in the browser AFTER you have configured your PCs IP as 192.168.1.200 and subnet as 255.255.255.0.I hope that clears you doubt.