said by djrobx:Storing logs of every IP that every user hits for two years is simply too much data to store.
I would think the FBI would mainly be interested in DHCP logs (IP+Time = User).
Which the ISP is already creating and storing (otherwise they would not be able to route the packets to your modem). There is very little extra data to log when a new IPN is assigned since the IPN assigned to you tends to stay constant for long periods of time (my dynamic IPN has been "mine" for at least 9 months). Thus the extra records to show historical assignments that differ from the current assignment is minimal.
