This package combines 3 different ways to display the traffic usage generated by vnStat (a console-based network traffic monitor).
What is it: vnStat is a network traffic monitor/bandwidth monitoring tool vnStat is a console-based network traffic monitor
What it is not: vnStat isn't a packet sniffer
Current version, vnstat2, works on currently supported releases
Every NIC is added on install. So if a NIC is added (or removed) on the pfSense box, remove the package and install again. If pfSense has data for a NIC vnStat will report the data even if the NIC has been removed.
To clear database for a NIC, delete it from /conf/vnstat
Update happens every minute. This causes it to write to the storage media. If using CF card for NanoBSD users, writing to the card every minute may shorten the life of the card.
If the following is observed:
Traffic data for Notice: Undefined index: pppoe0 in /usr/local/www/vnstat2/index.php on line 160 (pppoe0)
Try pressing Shift+f5 on each page to force the browser to refresh, this error will stay if the interface no longer exists, but since there is data in the database for this interface, it is reported.
A reinstall of the package will not change this as the core pfSense system has data pertaining to the non existent data and thus other packages such as vnstat2 will report the data it has or has found
Similar tools available for pfSense How can I monitor bandwidth usage