The easiest way to limit the overall bandwidth

I want to limit the overall bandwidth of some machines in my lan .
Example :
Machine 1 : 10KB/s dl / 3KB/s do
Machine 2 : 15KB/s dl / 5KB/s do
All the machines run Arch and I have full access on them .

Well, if squid seemed hard to setup, prepare yourself for the iproute2/tc setups. I use an old "automated" script, called cbq.init. I think I have to patch it a little for it to work on Arch (because of a wrong find option order somewhere in the script. I think I found the workaround with my Google friend.
HTBTools  is another software that implements the iproute2/tc solution, but in the latest distros I've encountered lots of problems setting it up and running. It is also currently unmaintained and unsupported.

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