vnstat on Ubuntu GNOME 13.10 32-bit to monitor my Internet usage. Running
vnstat gives network statistics only for
wlan0, but since I access Internet using a USB dongle, its network shows up as
ifconfig. How do I get vnstat to show network statistics for ppp0?
vnstat you need to create a database for your interface ppp0. Run the following command
sudo vnstat -u -i ppp0
Force a database update for interface ppp0 or create the database if it doesn't exist. This is usually the first command used after a fresh install.
See man page