How to track IP addresses I want to track IP address of visitors in my site using statistics module.

A log of which is attached here( 3 day log). I can't figure out if an IP address is used by a bot or human being. For example when I checked the 2nd and 3rd IP address, they turned out to be that of Google and Microsoft( Bing). But I've no idea about the first ip address with 900 visits in 3 days.

I want to track malicious user ip address for Adsense invalid clicks.
What module are you using to get the list of IPs ? You need a Reverse DNS lookup to integrate with your module, I wasn't able to find such module on drupal.org but there's a lot of sites that provides such service like Domain tools: lookup for 203.153.44.130 .