How do I view visitor's IP addresses?

I need to track and view the IP addresses of visitors.  How can I do this?  I've looked everywhere and looked at the sys_ip table in the DB.  I still can't figure it out.  Please help.

thank you

http://www.boonex.com/unity/extensions/entry/Access_Management_System_2_0_0

I have this module.  It works well for that purpose, but I did notice that it does not capture IPs 100% of the time.  I think that is more of a function of the various ways people can connect.  Nevertheless it is a very good module and the vendor is highly supportive.

Hello I think this module allow you view all your site's vistiors by country, etc - http://www.boonex.com/unity/extensions/entry/Site_stats

SashaE

In the description of features for this module, it says:

" IP address referred by search engines."

I don't understand what that means.  Does that mean it will show you all your visitors' IPs along with their username?

Please explain.  Thanks.