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How would I setup my LinkSys WRT54GS v7 with dd-WRT installed on so that I can limit the download/upload speed of each client over the wireless network? (I don't want any guys to be able to download more than 50kBps).

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2 Answers

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You can use tc rate limiting, by running the following commands on your router (see here for details):

  tc qdisc add dev $DEV root handle 1: cbq avpkt 1000 bandwidth 10mbit 

  tc class add dev $DEV parent 1: classid 1:1 cbq rate 400kbit allot 1500 prio 5 bounded isolated 

  tc filter add dev $DEV parent 1: protocol ip prio 16 u32 match ip dest 192.168.0.0/16 flowid 1:1

This limits all traffic coming from 192.168.x.y to 400 kilo*bits* per second (50 kilo*bytes* per second)

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I'm not really good at Network stuff, would you please give some bits of explanation on these commands? – Phuong Nguyen Jan 30 '10 at 15:07
I've edited my post. – fahadsadah Jan 30 '10 at 18:39
How would I modify your command if I don't want any client (not a group of clients) to get no more than 50 kilo bytes per second? – Phuong Nguyen Jan 31 '10 at 8:03
All of your clients are assigned addresses in the 192.168.x.y range, right? – fahadsadah Jan 31 '10 at 8:43
Yes, but what if I have two clients of 192.168.1.x and I want each clients to get a maximum speed of 50kBps? – Phuong Nguyen Feb 2 '10 at 14:56
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The paid-for version of dd-wrt offers bandwidth limiting out of the box.

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