John Hasler <[email protected]> writes: > I'm still unclear as to what the problem is. On a machine with only one > external interface the command vnstat with no options works fine out of > the box. It even works on my phone, where it summarizes traffic for all > interfaces. The mutating MAC shouldn't matter.
It seems "vnstat -m" only shows monthly statistics for a single interface, unless you provide all possible interface names with "-i int1:int2:..." format. I suppose you can do something like vnstat -i $(vnstat --iflist 1 | grep '^enx' | tr '\n' '+' | sed 's/\+$//') to combine all the enx* interfaces in the database. Or, use udev rules to create a nice short name for any USB ethernet interfaces regardles of the MAC, to avoid creating a new database entry each time the MAC changes.
