radpostauth - from client ip

Hello All... I have been trying to figure out why our radius.log file shows the 'from client:' IP correctly on accepted logins, but when I'm storing them into my database, I get a different IP? In my query, I'm using %{NAS-IP-Address}, which is giving me an IP, but not the one I'm expecting to see. Which attribute should I be using to store the same 'from client' that the radius.log is storing? Thanks!