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I have an interent connection with the speed of 4000k bits up and down. I want to do port based traffic shaping on a ubuntu machine, which acts as router. eth0 is the WAN interface. This is how I would like to allocate bandwidth:

  • For ports 80 and 443 the bandwidth usage can go upto 90%
  • For ports above 1024 upto 65535 the bandwidth usage can go upto 10%
  • For remaining ports the bandwidth usage can go upto 40%

The easiest way for achieving the above is using a router with tomato firmware. I have used it and it is very efficient. I want to try if it can be done on a Ubuntu or any GNU/Linux machine. I have googled extensively about the topic and I feel there isn't much information.

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You have port tcp/445 (microsoft-ds) traffic going to the Internet? Or did you mean 443? – Zoredache Mar 2 '11 at 17:34
See this if you haven't seen it already. lartc.org – Zoredache Mar 2 '11 at 17:35
Yes, I meant 443. – nixnotwin Mar 3 '11 at 1:33
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You should be able to accomplish this using tc and iptables. This article by Vivek Gite walks you through doing it for one port.

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I wrote this blog post below 8 years ago for FreeBSD using DUMMYNET add-on to ipfw. It was only IP based traffic shaping (not port-based) but I assume by now there's a port to Ubuntu that supports TCP ports as well. Scroll past all the noob stuff if your a kernel rebuilding master to see how DUMMYNET concepts work and rulesets.

http://www.fishbrains.com/2003/08/25/controlling-bandwidth-for-your-wireless-network-using-freebsd-and-dummynet/

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