Different traffic data - vnstat and mailreport

falk

Hi Everyone,
i'm using pfsense 2.2.2 with 9 physical interfaces, one of them is wan the others are used for around 30 vlans.
We have a public class C network and split it in different blocks for customers.
Everything works perfect but i got one small anoying problem.
I'd like to know the montly traffic so i installed vnstat2 package (1.12_3 installed). vnstat looks like it's working fine too.
To get a montly report by mail i installed mailreport (2.3) and thats where the "problem" is, the traffic data from vnstat and mailreport are different.

I created one report where every interface is listet like this:
WAN :: Traffic inverse month previous
Frequency: monthly
Day of Week: Saturday (i cant change it to "none", anybody know if this is a problem?)
Day of Month: 1

So I get a Report at the beginning of the month that shows the last month traffic.

I tried it with some different settings but what i get is e.g.:

WAN
vnstat:
June 2015 in 3.43 TB out 2.82 TB total 6.26 TB
mailreport:
June 2015 in 4.08 TB out 3.11 TB

EM2
vnstat:
June 2015 in 25.69 GB out 12.00 GB total 37.69 GB
mailreport:
June 2015 in 26.79 GB out 5.84 GB

EM3
vnstat:
June 2015 in 986.90 GB out 640.10 GB total 1.59 TB
mailreport:
June 2015 in 1.02 TB out 655.22 TB

Anybody got an idea what value is the actual used traffic and how to correct the other one?

Thanks a lot!

Falk