pavan_5 :
i lost my laptop so can i get my laptop serial number by using my ip address
Back up a bit here, even if you could do that, how do you know what the IP address of the laptop is now? Even if you wrote it down when you were using it, it won't be the same as it is now. The IP address is assigned dynamically every time you connect the laptop to a network (outside of some rare cases when you setup a static IP on it), you can't get any information at all about the system by just the IP address, unless you can use that to remote into the system or had some management tools that can connect to the system. But for any of that to work you need to know not only the current IP of the system but also have it be available to connect from...