Limit the outgoing traffic to the internal network (to the students). You may start with a limit of 64kbit/s to the students. Regards Daniel -----Ursprungligt meddelande----- Från: lartc-admin@xxxxxxxxxxxxxxx [mailto:lartc-admin@xxxxxxxxxxxxxxx]För steeman philip I'm just learning to use QOS, and it seems very powerfull. Can some-one give me a hint what to do for the following (simplified) problem. 128kbit +------+ 10Mb +----------+ 10Mb provider-------------+router+--------+linux-masq+------------ internal network +------+ +----------+ eth0 eth1=10.1.14.1 The only thing I can change things on, is the linux-computer. This computer is a masquerading computer (I don't know if this poses problems?) The problem: On the internal network all the students are downloading as fast(slow) as they can. So the incoming traffic is almost 100%. The outgoing traffic is very low (max 20%). Someone in our library wants to telnet from an inside computer to an outside computer. This works extreme slow (unworkable). Is there a solution for this problem? Thanks in advance, Philip