I'm facing trouble with people login in as guests and writing unwanted stuff in forums which we normally open for parents. We would like to track them, if we can get the correct IP address, we can find out which child uses that computer.
While the logs shows the public IP address most of the time, sometimes it shows the private IP address like 172.31.152.36. How does it log the private IP address - is it possible to be on the net with a private IP address ?