Re: [LARTC] Lamer needs help for basic tc setup

[Andy Furniss <andy.furniss@dsl.pipex.com>]

Geri Fehringer wrote:
> Hi fellows,
> 
> 
> i'm just a newbie to use the cool tc and played around
> the last 2 weeks.
> 
> I'm quite confident - in theory - what's possible and
> the basic difference
> between the queuing disciplines.
> 
> We're using a Fedora Core 3 box as Gateway
> (iptables,tc,iproute2 with NAT).
> Clients are coming in via eth1 and outgouing traffic
> (2Mbit/s SDSL) through
> eth0.
> 
> So we would like to enable bandwidth limitation
> per-user, so i just used
> several scripts (htp from sourceforge,cbq.init
> ,wondershaper etc).
> (Each client: Downstream max 128kbit/s, Upstream max
> 90kbit/s)
> 
> Shaping is working fine if i mark this specific source
> with a iptables
> rule, but as soon i apply multiple different source
> ip's to mark it within
> the same queue, all are sharing my limitation and i
> thought each of them
> will get the rate-limiting.

You need to have a seperate class and mark for each user

> I also tried the u23 matching within tc, but same
> effect,

When doing NAT u32 will work for downloads shaped on the lan facing 
interface but not for uploads on the wan interface you need to 
mark/classify.



> qdisc cbq 1: rate 2Mbit (bounded,isolated) prio
> no-transmit

I would use htb with a class for each user - It would probably be nicer 
to seperate interactive traffic out from bulk aswell - depends on how 
many users share the bandwidth really.

Andy.
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