Admin-Customer Last Login ip address lookup?

I know when someone who logs in, their Last Login will show up in Admin/Customers. But could someone tell me if they come back as only a guest, will there IP be read and properly dated in this same info?

Or is there a better way to "keep" track of repeat visitors (guests)?

Zen Cart tracks the IP address of individual orders placed.
It does not natively track the IP from which a customer logs in or visits the site.

I thought that might be the case.

I was hoping I could get some historical patterns with my regular visiters, even if only an IP address.

Thanks for your reply.