TomatoUSB

I am running Linksys E2000 (on the 2nd floor) as a "switch" connected to my main router (d-link 655 on the 1st floor, wireless disabled). All my computers are wired connected to the E2000 and there are some devices (iPod, phones, tab) connected wirelessly. The firmware I am using is the one specificly for E2000 (ver 1.28 beta).

I want to monitor the web usage (not bandwidth) - ip/url people visited etc. I found the web usage configuration, but it's not logging anything. I have left it on for several days and knowing for sure that the computers/devices have been used to browse the web etc - but the "Web Usage" log remains empty.

Is there anything special that I need to configure beyond the loggin config or is it not possible to log web-usage when it's not used as the main router?