> i want to use NetBSD as a transparent bridge that does traffic
accounting on the bridged ethernet devices. I know that NetBSD is able
to
> behave as an 802.3 Bridge, but is it possible to count the traffice
running through the devices?

> I build something like that with OpenBSD and ipfilter, but i am not
sure if NetBSD is also able to do the job.


AFAIK NetBSD doesn't handle IPF use on bridge.
I am sure it doesnt handle transparent filtering on bridge.