Re: question on fwmark speed boost

[Wolfgang Hennerbichler <wolfgang.hennerbichler@risc-software.at>]

Follow-Up: This is the only pice of information I have found on my problem:

http://marc.info/?l=lartc&m\x105421129231583&w=2

=> You can reduce the number of fw filters rules if you use the mark as
hash key.
So if you add
tc filter add dev eth0 parent 1:0 protocol ip handle 1 fw
and you have a packet with mark 39, it will placed in class 1:39.


Wolfgang

On 07/03/2013 02:39 PM, Wolfgang Hennerbichler wrote:
> Hi,
> 
> following tc config:
> 
> tc qdisc add dev wan0 root handle 1: htb default 12
> tc class add dev wan0 parent 1:0 classid 1:12 htb rate 9500mbit ceil
> 9500mbit
> tc class add dev wan0 parent 1:0 classid 1:2001 htb rate 9500mbit ceil
> 9500mbit
> tc class add dev wan0 parent 1:0 classid 1:2002 htb rate 100kbit ceil
> 100kbit
> 
> # add filter - all marked packets should be classified automatically
> according to the fwmark - as far as I've read online
> 
> tc filter add dev wan0 parent 1:0 protocol ip fw
> 
> iptables -A POSTROUTING -t mangle -j CONNMARK --restore-mark
> iptables -A POSTROUTING -t mangle -m mark ! --mark 0 -j ACCEPT
> iptables -A POSTROUTING -m physdev --physdev-out wan0 -p udp -s 1.2.3.4
> -t mangle -j MARK --set-mark 2001
> iptables -A POSTROUTING -m physdev --physdev-out wan0 -p tcp -s 1.2.3.4
> -t mangle -j MARK --set-mark 2002
> iptables -A POSTROUTING -t mangle -j CONNMARK --save-mark
> 
> 
> my filter does not work as intended. I thought it would automatically
> use the marks, and put the traffic into the right classes. It doesn't
> seem to work. I have troubles finding documentation on this, so maybe
> anybody can shed some light on this.
> 
> Wolfgang
> 


-- 
DI (FH) Wolfgang Hennerbichler
Software Development
Unit Advanced Computing Technologies
RISC Software GmbH
A company of the Johannes Kepler University Linz

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wolfgang.hennerbichler@risc-software.at
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