hi, I've successfully implemented shaping and policing with HTB for my SDSL line. Some tips&tricks I discovered which were not covered in the FAQs and docs I read: - To discover the appropriate rate for your line, flood it with traffic and reduce the rate until the matching class starts to show a consistent backlog -- only then you've managed to take the queue away from your modems/routers and into the shaping box. - The docs only speak about the IMQ device in connection with the PREROUTING chain -- the problem is that at that point, incoming packets are not de-masqueraded yet, so you can't fwmark and shape depending on the internal address; I use <iptables packet marking> iptables -i $EXT_IF -A FORWARD -t mangle -j IMQ without problems. Questions: I'm not quite sure if I shoot myself in the foot with that IMQ setup -- packets get stuffed into the IMQ device from the mangle table, but where and how do they "reappear" after shaping? The other question that remains is: with "tc qdisc show", I see overlimit!=0 only for the root qdisc -- I would have expected it to increase on the queues or classes where actual rate > configured rate... why is that? ciao, cm. -- Actually, I found New Zealanders to be the most akin to Canadians. They also feel the looming presense of a next door neighbour country full of loud, excessively happy and somewhat simple people, and are a little intimidated by it. -- Paul Tomblin _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
