H323 and Traffic Control

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On Fri, 25 Oct 2002 yves@famillemetivier.net wrote:

> But I have a problem with traffic control :
> I want to give highest priority to real time traffic, like h323.
>
> I was expecting that h323 netfilter module should mark all h323 traffic,
> including RTP and RTCP UDP packets, but it seems that it only marks
> packets from known ports (those explicitely declared in iptables) and
> not UDP related packets.

You can mark the related stream by using the helper matching from
patch-o-matic. In the case of h323, you can match the H.225 and H.245
channels by the following command-fragments:

iptables .... -m helper --helper H.225 ...
iptables .... -m helper --helper H.245 ...

Regards,
Jozsef
-
E-mail  : kadlec@blackhole.kfki.hu, kadlec@sunserv.kfki.hu
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