How to include IP address

When creating a blank form, how can I included a section for an IP address?

Hello,

Is this to ask users to fill their IP address? If yes, you can add our Short Text Entry field. Otherwise, I would suggest using our Get Visitor Location widget to automatically get the IP address. 

http://widgets.jotform.com/widget/get_visitor_location

Guide to add a widget: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-your-Form. 

In the widget, you can filter the details you want to collect. You can check IP only:

Demo: https://form.jotform.com/92136882473969.