Nethserver Server Traffic

I noticed my Nethserver which acts as a gateway and firewall is active on the net, it sends around 400Mb and receives around 300Mb daily, is this normal?

Without consumption data by users? or from NethServer?

when I look at Nethserver in ntop… I also noticed it when I was still configuring that it was sending and receiving data…

NethServer doesn’t make traffic itself, you can check it disabling green interface, it makes a lot of traffic only during the update