VPN data usage

Ewon Support eWON Cosy
#1

Hello there,
I have ewons on my account that are consuming VPN data without having connected to it with ecatcher during the current billing period.
I would like someone to explain to me How is VPN traffic measured and also help eliminate VPN data consumption not coming from an ecatcher connection.

Actual configuration:
*PLC discovery is disabled in the configuration.
(BroadcastForwarder = 0)

*Configured as a gateway to allow internet access on LAN side.
(NatItf = 2, VPNRedirect = 0, FwrdToWAN = 1)

*Configured as NTP relay.
(Update time interval = 1440 minutes)

*Using NAT1:1

Thanks and regards,

Bob

#2

In order to keep the VPN connection open, a “keepalive” message is broadcast every 120 seconds (default setting). This uses a small amount of data.

The ‘VPNAlive’ setting in the comcfg.txt controls the interval.

#3

Hi Kyle,

If I look into the 2023-04 connection log report, I can notice that one ewon is consumming more data than others.
See on the image below:
1st eWon has consumed 21MB
2nd eWon has consumed 21MB
3rd eWon has consumed 1559MB

No ecatcher connection was logged during this period.

I can assume that 21MB can be the Keepalive but I need to understand whats wrong with the 3rd device!

202304_Log
202304_Log853×215 8.3 KB

#4

Can you provide the serial number and recheck the BroadcastForwarder setting?

#5

S/N: 2039-2975-22
BroadcastForwarder = 0

#6

Yeah, I didn’t see any connections in April. Can you update the firmware to the latest version? It looks like this one is running older firmware than most of your other Ewons.

#7

Firmware update is not an easy task because we will need to reboot the device which involves stopping the process. Not to mention that I don’t really like to perform this kind of manipulation while I’m not on site.

Do you have any other suggestion?

#8

I believe there is an issue with that specific firmware version causing it to use excessive VPN data, so updating the firmware is the best solution.

I could try manually resetting all connections to the Ewon in the meantime if you’d like.

Keep in mind that while there is very small chance of a problem happening while updating the firmware remotely, this is extremely rare.