I have just installed vnstat. I run
vnstat and get this:
~$ vnstat rx / tx / total / estimated wlan0: Aug '12 12.89 MiB / 14.14 MiB / 27.03 MiB / 37.00 MiB today 12.89 MiB / 14.14 MiB / 27.03 MiB / 29 MiB irda0: Not enough data available yet. eth0: Not enough data available yet.
I'm only using wireless, and I've only just installed it, so I would expect that. However, when I run
vnstat -l, it only returns stuff for eth0; wlan0 isn't present:
~$ vnstat -l Monitoring eth0... (press CTRL-C to stop) rx: 0 kbit/s 0 p/s tx: 0 kbit/s 0 p/s^C
Similarly when I run
vnstat -h (show traffic for last 24 hours), or any one of a number of other commands, it only complains about not having enough data for eth0, and doesn't try to return anything for wlan0. What's going on?