gypsy wrote: > > I am attempting to implement IMQ on a 2.4.31 version kernel with > iptables 1.3.3. > > I am following the example at http://www.linuximq.net/usage.html. When > I enter the line > iptables -t mangle -A POSTROUTING -o eth1 -j IMQ --todev1 > > (eth1 is the external interface), the computer slows to a crawl. OK, > the CPU is only an AMD K6 233 which is not the world's greatest CPU, but > egress shaping is done at acceptable speed. > > Neither top nor free is any help. top says the system is using 35% and > user about 1%, with load averages in the range of 0.2x, 0.2x and 0.1x > and top itself is at the top of the list. free says 3388 free mem and > 780 used swap. > > Even attaching to a non connected device (change eth1 to eth2 in the > above iptables line) creates this condition!?? > > Does anyone have any suggestions as to what might cause this huge > slowdown? How do I troubleshoot this? I'll have to reimplement > policing if I can't make IMQ work. > > Thanks for any assistance. > -- > gypsy The answer is that the wrong IMQ device was specified. I loaded imq with: modprobe imq numdevs=1 That makes the --todev 0 not 1. Moreover, I was in the wrong mangle chain. WRONG: iptables -t mangle -A POSTROUTING -o eth1 -j IMQ --todev 1 RIGHT: iptables -t mangle -A PREROUTING -i eth1 -j IMQ --todev 0 So much for the documentation at http://www.linuximq.net/usage.html <shrug>. Thanks to http://wiki.nix.hu/cgi-bin/twiki/view/IMQ/WebHome -- gypsy _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
