Get the WAN IP address from the command line?

This laptop of mine I am working on connected to the Internet through a router that connected to a cable modem with the ISP.

From the Netgear gateway I can see an IP address to connect the device in Remote Management. I wonder if that is the IP address of my router from the outside world, the Internet.

Is there some way I can verify that? I use ipconfig /all but do not see through the router. I remember if my memory serves me right I could see the WAN IP address if my computer connected directly to the modem.

I ask for this because I want to test remote desktop connection over the Internet and I suppose I need the WAN IP address.