Re: how to classify sip traffic (voip)

[Vinod Chandran <vinod_chandran@xxxxxxxxxxxxxxx>]

> Fabian,
>
> Try adding the following Iptable rule with a filter for the mark value..
> iptables -t mangle -A PREROUTING -p udp  -m lenght <length value> -j 
> MARK --set-mark 1
>
> Regards,
> Vinod C 


Fabian Gervan wrote:

> How i can classify sip traffic (voip)??  
>
> I try dst 5060 udp port, but dont'work. sip sesion use dynamic port.
>
> Sniffing packets with windows net-peeker, I see that packets lenghts
> is always=87
> How i can filter, by  packet lenght, with u32?
>
> Regards
> Fabian
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