Re: invert u32 match selector

Linux Advanced Routing and Traffic Control

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You should change the prios. The first filter should have a lower prio
number than the second. That means that it is processed first and whatever
is not matched by it is passed on to filters with higher prio number.

> On Wed, 22 Feb 2006 11:43:40 +0200
> "Vaidas" <admin@xxxxxx> wrote:
>
>> With u32 you cannot negate, that's why it is lame...
>
> And why doesn't this work? (I send all port 80 to 1.2.3.4 to class 14
> /before/ I send the rest to classid 13):
>
> $TC filter add dev ${DEV_IFB} parent 1:0 prio 2 protocol ip u32 \
>   match ip protocol 0x6 0xff \
>   match ip dport 80 0xffff \
>   match ip dst 1.2.3.4/32 \
>   classid 1:14
>
> $TC filter add dev ${DEV_IFB} parent 1:0 prio 2 protocol ip u32 \
>   match ip protocol 0x6 0xff \
>   match ip dport 80 0xffff \
>   classid 1:13
>
> Any ideas?
>
>> Use iptables for marking packets
>>
>> $TC filter add dev ${DEV_IFB} parent 1:0 prio 2 protocol ip handle 14
>> fw classid 1:14
>>
>> Iptables -t mangle -A PREROUTING -p TCP --dport 80 -d ! 1.2.3.4 -j
>> MARK --set-mark 14
>
> Ok, thnx. That's of course a solution, but I just wondered if this were
> possible with u32...
>
> R.
>
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-- 
Anton Glinkov
network administrator

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