----- Original Message -----
From: "alex" <[EMAIL PROTECTED]>
>     # For outgoing packets we need to mark stuff
>     /sbin/iptables -t mangle -A to-dsl -p tcp --dport 22   -j MARK
> --set-mark 1
>
>     /sbin/iptables -t mangle -A to-dsl -p tcp --dport 80   -j MARK
> --set-mark 2


I'd also do like this:

iptables -t mangle -A to-dsl -p tcp --dport 22 -j MARK --set-mark 1
iptables -t mangle -A to-dsl -p tcp --dport 22 -j RETURN

iptables -t mangle -A to-dsl -p tcp --dport 80 -j MARK --set-mark 2
iptables -t mangle -A to-dsl -p tcp --dport 80 -j RETURN

etc...

Otherwise iptables will do the whole "to-dsl" list for every packet. In
your case ot wouldn't matter except for some extra CPU usage. But if you
would like to mark port 80 as bulk-traffic and ACK's as interactive
traffic, then those port 80 ACK's could be marked as bulk which you
wouldn't want it to.

Which brings me to another subject :) If your DSL-connection have
different bandwidth like 1mbit/128kbit then your download speed could be
destroyed by huge queues in your uplink.

I'd guess this would do the trick.

# Set ACK as prioritized traffic (ACK's are less than 100 bytes)
$IPTABLES -t mangle -A MANGLE_MARK -p tcp -m length --length :100 -j
MARK --set-mark 1
$IPTABLES -t mangle -A MANGLE_MARK -p tcp -m length --length :100 -j
RETURN

(You could probably mark ACK's with --tcp-flags SYN,FIN,RST ACK. But I
have not tested that yet.)

They also mention this here: http://lartc.org/wondershaper/

/Jonas

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