> hi,
>
> I use FreeBSD 4.2 stable + bridge + dummynet + ipfw.
> I would like to calculate the bandwidth of each
> authorized IP source flowing through the bridge from a
> user program.
> As this bandwidth calculation should be done very often
> (10 to 20 times per second) I first tried to use the if_data
...
> Anybody has an advice on the best way to achieve this
> calculation ? what about the counter capabilities of ipfw ?
i think the ipfw interface to access this info is not very well
suited to this kind of task, at least not as often as 20 times
per second.
> Moreover, concerning the bridge, I was wondering if
> there is a way not to put a third interface in promiscous
yes, there is asysctl interface (net.link.ether.bridge_cfg)
see the manpages.
cheers
luigi
----------------------------------+-----------------------------------------
Luigi RIZZO, [EMAIL PROTECTED] . ACIRI/ICSI (on leave from Univ. di Pisa)
http://www.iet.unipi.it/~luigi/ . 1947 Center St, Berkeley CA 94704
Phone: (510) 666 2927
----------------------------------+-----------------------------------------
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-net" in the body of the message
