No reporting data available for OpenVPN traffic

[myksto]

Hi guys.
I setup the Insigt reporting feature so that I can monitor traffic from inside my networks.
In Netflow configuration I added my LAN, DMZ and OpenVPN interfaces.
When I go to the Insight function I can see all traffic and graphs for all interfaces except OpenVPN.
I attached screenshot of Netflow configuration and Insigth for OpenVPN interfaces where, you can see, no data is available and I have several OpenVPN connections active (mine too now).

Am I doing anything wrong or missing something?

Thanks and cheers,

Michele.

[myksto]

No one?

[franco]

I don't think the NetFlow generator built into FreeBSD's NetGraph subsystem is particularly equipped for all types of pseudo-devices. It's a bit like the IPS situation, where NetGraph devices don't work as well either...

https://www.freebsd.org/cgi/man.cgi?query=ng_netflow&sektion=4

Not sure if anyone in FreeBSD still works in these parts. They are, sadly, "as good as they get" which means they have limitations and tun/tap devices seem to be part of it.


Cheers,
Franco

[biosinside]

Hi gentlemen,

I have the same situation as well on OpenVPN, and luckily, except OpenVPN, it seems i can get the (look-like-) correct data against other interfaces of which all are virtualized.

BR,
H.J.H