Hi,
What do you think about this solution for skype specific QoS:
function HTB_shape
{
###########################################################
# Shapes the traffic of an interface, limiting the late
#
# Arguments are DEV,RATE
DEV=$1
RATE=$2
[...]
PORT=dport
if [ $DEV == $EXTIF ]; then
PORT=sport
fi
iptables -t mangle -A MYSHAPER-$DEV -p tcp --$PORT 4000 -j MARK
--set-mark 22
# skype configured to listen on 4000
iptables -t mangle -A MYSHAPER-$DEV -p udp --$PORT 4000 -j MARK
--set-mark 22
[...]
}
[...]
HTB_shape $INTIF $RATEDN
HTB_shape $EXTIF $RATEUP
?
According to
http://www.skype.com/help/faq/technical.html
we can choose the port that skype will use for sending and receiving traffic.
For this example port 4000 was chosen, and that port is forwarded from the
linux router to the internal machine that runs skype for both TCP and UDP
traffic.
The idea is that since we're shapping on the output of each interface, for the
external interface we want to filter on the source port whereas for the
internal one what matters is the destination port.
The complete script is here:
http://downloads.angulosolido.pt/QoS/HTB_shaper.sh
Comments?
Best regards
Gustavo
--
Angulo Sólido - Tecnologias de Informação
http://angulosolido.pt
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