Email and IP

Hello there, typically I receive forms back via email notification with an IP address.  How come I am not getting email nor do I see IP address (I only see persons name). How can I change my settings to see this since the IP address and/or get this from my submissions. Thanks

Just found this link on how to show IP address, http://www.screencast.com/t/OhhczKCJ8T

So I only need to know how to continue getting emails notifications in my inbox! Thx