When a device is discovered automatically, it is displayed in the Resource Tree as either "model" or "manufacturer + model". As a result, all cameras with the same make and model will have the same name – only the IP address will differ. Display of the IP address is optional (see "Show additional info in tree").
A device can be renamed for easier identification or any other reason.
In the Resource Tree right-click on the device and use the context menu option Rename (F2), or from Camera Settings > General click on the pencil icon in the camera name field to make it editable.