David Brownlee <abs@NetBSD.ORG>  wrote:
 > 	We're just dropping in a NetBSD box as a router in our network
 > 	here, and wondered if anyone has recommendations for methods of
 > 	recording network usage stats.

I put 'count' rules in /etc/ipf.conf and then via cron, use
'ipfstat -ao -ai' to get byte-counts for each network. I then
submit the data to an oracle server using various sed scripts
and other miscellaneous tools..

It's all fairly custom on our end but I'm sure you can figure out
what you need for your setup.