AIR, iptables will do that. It has been a long time since I have looked at iptables, but I seem to remember that it will keep those kinds of statistics and it will do it on a per-interface level, all you have to do is set it up to monitor the interface connected to the internet.
73s de WB5VQX On Nov 17, 2017 08:52, "Richard Owlett" <rowl...@cloud85.net> wrote: > I'm interested in investigating cumulative data to/from the internet for > selected interval ranging from an hour to a week. > My only connection is a device connected thru a USB port. > My web search turned up only discussion of measuring throughput RATE. > Suggestion of keyword(s) for search? > Suggested software? > TIA > > >