How to get username from IP address of remote computer

On a network (Home LAN or WiFi or corporate intranet), it is possible to get username from the assigned IP address of a remote machine. Assuming you have a bunch of users using Windows machines on the same network, lets look into the windows command to get the username.

For example, type the following in command prompt :

wmic.exe /node:17.16.15.28 computersystem get username
UserName
IRONCLADZONE\Special.User

Note that this works only for the remote machines which are connected on the same network.