IP logging

From: Jon C (jon@july.co.uk)
Date: 06/30/02

From: Jon C <jon@july.co.uk>
Date: Sun, 30 Jun 2002 20:29:20 +0100

I want to be able to log a users ip address when they authenticate?
Is there any easy way / product that enables this?

If possible , I'd like to log it via a radius accounting server.