Modules, which does what?

[nicolaj]

Wanted to use snmp to monitor and log the wan traffic because i'm thinking about adding a nas that would use the internet connection. But what does the different modules do?

Also, as the monitor is off during nights, would it be possible for pfsense to log the bandwidth used for x amount of hours so when the monitor is turned on it can update the missing hours?

[bpb21]

Did you find out what the different modules do?  Or is that in another post somewhere?