Match IP to logged out users

[AmandaB]

I know this modification used to exist but I can't find it at all. A forum I once posted at had this mod that would show a user while logged out. Moderators and admin could see when a member was logged out but lurking. I believe it matched/compared the IP address of guests with those of registered members. The usersname would then be displayed with the bots but instead of showing as 'guest' it would display the username.

I'd like to see if something like this still exists cause it is PITA to copy an IP from WOL and then search it in the admincp.