Re: [LARTC] Matching interface using U32(?)

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

Nataniel Klug wrote:
>    Hello all,
> 
>    I am trying to make a little bit more complex QoS/Shapping form and I 
> need to shape a PPPoE conection that I serve to my clients. So this is 
> the scope:
> 
> client connects using pppoe so it gets an IP address (from pppoe pool) 
> and open an interface into my linux box
> interface for this client is ppp0
> client has got an ip 1.1.1.2/32 and it is poiting to pppoe-server 1.1.1.1
> 
>    So, if i want to shape download for this client its really easy and I 
> make a htb rule that shapes all traffic into ppp0... My problem is when 
> I have to shape upload traffic. All my traffic goes for eth0 to the 
> world. I tryed to make this rule:
> 
> $TC class add dev eth0 parent 1:1 classid 1:500 htb rate 200Kbit ceil 
> 200Kbit
> $TC filter add dev eth0 parent 1:0 protocol ip prio 1 u32 match ip src 
> 1.1.1.2/32 flowid 1:500

protocol ip on the filter is the problem - Without trying I am not sure 
what will work but in the case of vlans you can just sat protocol 8021q.

If pppoe doesn't work try its' ethertype number - you could also use 
protocol all and match the ethertype protocol number with u32 and a 
negative offset.

> 
>    But this rule is not matching the upload connection. If i put the 
> same rule to an IP (i set an ip into client) this rule works but into 
> pppoe conection it did not work properly.
> 
>    Someone has some tip to match the interface that the conection is 
> coming from? Like I wanna match all traffic coming from ppp0 and going 
> throw eth0 to be shapped?! There is anyway to make this work?

If you are running  >2.6.16 then you could use IFB and attach a queue to 
each ppp.

There is a kernel config option for u32 to mach indev - I don't know the 
syntax,though.

Andy.

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