What happens if you run /usr/local/bin/vnstat from the cli and have you got Status_Traffic_Totals installed ?
[2.4.2-RELEASE][admin@pfsense]/root: /usr/local/bin/vnstat
rx / tx / total / estimated
WAN (pppoe0):
Mar '18 41.81 GiB / 2.57 GiB / 44.38 GiB / 70.08 GiB
yesterday 2.44 GiB / 131.85 MiB / 2.57 GiB
today 1.40 GiB / 103.39 MiB / 1.50 GiB / 2.38 GiB
LAN (igb0):
Mar '18 8.63 GiB / 48.17 GiB / 56.80 GiB / 89.70 GiB
yesterday 6.28 GiB / 8.63 GiB / 14.92 GiB
today 165.54 MiB / 1.46 GiB / 1.62 GiB / 2.58 GiB
USER (igb0.2):
Mar '18 4.83 GiB / 36.86 GiB / 41.69 GiB / 65.84 GiB
yesterday 3.43 GiB / 5.18 GiB / 8.61 GiB
today 108.51 MiB / 1.36 GiB / 1.47 GiB / 2.33 GiB
GUEST (igb0.3):
Mar '18 10.70 MiB / 16.83 MiB / 27.52 MiB / 40.00 MiB
yesterday 1.21 MiB / 1.89 MiB / 3.10 MiB
today 777 KiB / 1.19 MiB / 1.95 MiB / –
IOT (igb0.4):
Mar '18 344.16 MiB / 7.13 GiB / 7.46 GiB / 11.78 GiB
yesterday 26.21 MiB / 647.64 MiB / 673.85 MiB
today 10.36 MiB / 39.67 MiB / 50.03 MiB / 77 MiB
DMZ (igb0.5):
Mar '18 2.72 GiB / 2.70 GiB / 5.42 GiB / 8.56 GiB
yesterday 2.71 GiB / 2.69 GiB / 5.40 GiB
today 854 KiB / 1.26 MiB / 2.10 MiB / --
VOICE (igb0.6):
Mar '18 76.94 MiB / 111.22 MiB / 188.17 MiB / 295.00 MiB
yesterday 6.77 MiB / 7.30 MiB / 14.07 MiB
today 4.27 MiB / 4.60 MiB / 8.87 MiB / 12 MiB
TEST (igb0.7):
Mar '18 58.24 MiB / 53.63 MiB / 111.88 MiB / 174.00 MiB
yesterday 1.43 MiB / 2.10 MiB / 3.52 MiB
today 939 KiB / 1.34 MiB / 2.25 MiB / --
IPsec (enc0):
Mar '18 31.54 MiB / 946.15 MiB / 977.68 MiB / 1.51 GiB
yesterday 0 KiB / 0 KiB / 0 KiB
today 0 KiB / 0 KiB / 0 KiB / --
The traffic isn't right for my LAN interface as I think it puts the parent interface into promiscuous mode, my LAN interface is just used for switch & Wi-Fi management no way the total is 56.80 GiB.
[2.4.2-RELEASE][admin@pfsense]/root: /usr/local/bin/vnstat –longhelp
vnStat 1.15 by Teemu Toivola <tst at="" iki="" dot="" fi="">Query:
-q, --query query database
-h, --hours show hours
-d, --days show days
-m, --months show months
-w, --weeks show weeks
-t, --top10 show top 10 days
-s, --short use short output
-ru, --rateunit swap configured rate unit
--oneline show simple parseable format
--exportdb dump database in text format
--importdb import previously exported database
--json show database in json format
--xml show database in xml format
Modify:
--create create database
--delete delete database
-u, --update update database
-r, --reset reset interface counters
--sync sync interface counters
--enable enable interface
--disable disable interface
--nick set a nickname for interface
--cleartop clear the top 10
--rebuildtotal rebuild total transfers from months
Misc:
-i, --iface select interface (default: eth0)
-?, --help short help
-D, --debug show some additional debug information
-v, --version show version
-tr, --traffic calculate traffic
-l, --live show transfer rate in real time
--style select output style (0-4)
--iflist show list of available interfaces
--dbdir select database directory
--locale set locale
--config select config file
--savemerged save merged database to current directory
--showconfig dump config file with current settings
--testkernel check if the kernel is broken
--longhelp display this help
See also "man vnstat".</tst>