On Fri, May 23, 2014 at 03:53:18PM +0200, Patrick Zwickl wrote: > Dear all, > > I am currently experimenting with ipfw dummynet features (coming rather from > the netem tc corner; so being new to dummynet and apologise for these kind of > questions) and was wondering how to syntactically achieve "build cascades of > pipes? listed on [1]?s front page. Unfortunately, I could not find a minimal > example for this in the documentation (or I missed the point). > > Background: I am currently looking for concepts allowing me to put some > traffic into a pipe being followed by several queues, the scheduler and then > reinserted into another pipe (optimally as clean as possible). So, basically, > a cascade of pipes, optimally being able to consume from different other > pipes or interfaces. From the statement in [1], I assume ipfw + dummynet > could be the perfect playground for this, but from the syntax it was not > clear to me how this is done. > > Any pointer to a minimal example or any reading recommendation would be > highly appreciated (maybe I have been searching the wrong channels so far). > Thanks in advance for reading and potentially commenting :)
the trick to enable cascades is to set the sysctl variable net.inet.ip.fw.one_pass=0 (or equivalent in linux, /sys/modules/...) so that packets coming out from a pipe re-enter the firewall at the next rule. cheers luigi _______________________________________________ freebsd-ipfw@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw To unsubscribe, send any mail to "freebsd-ipfw-unsubscr...@freebsd.org"