simple questions about imq

[Tóth Nándor <nug@xxxxxxxxxx>]

Hi!

I have read all informations i could find, but some things are still not 
clear.

My setup is:
 ---INTERNET1(eth0)-\  /- Local net1 (eth2)
                     GW
 ---INTERNET2(eth1)-/  \- Local net2 (eth3)

I have NAT and a working setup using HTB,SFQ, classifying with the 
iptables -j CLASSIFY way. I shape only the traffic coming from the 
internet heading to the intranet.

I would like to have a configuration like this:
 ---INTERNET1(eth0)-\        /- Local net1 (eth2)
                     GW--imq0
 ---INTERNET2(eth1)-/        \- Local net2 (eth3)

I think it can be done this way:
iptables -t mangle -A PREROUTING -i eth0 -j IMQ --todev 0
iptables -t mangle -A PREROUTING -i eth1 -j IMQ --todev 0

But it would include traffic heading to the gateway directly, wouldn't 
it? Can i put these rules to the POSTROUTING chain?

And i can still have my CLASSIFY targets in the POSTROUTING chain, 
because IMQ queing will happen after it according to 
http://lartc.org/howto/lartc.imq.html.
So for example:
$IPTABLES -t mangle -A POSTROUTING -o $eth2 ... -j CLASSIFY --set-class 1:30
$IPTABLES -t mangle -A POSTROUTING -o $eth3 ... -j CLASSIFY --set-class 1:30
$IPTABLES -t mangle -A POSTROUTING -o $eth2 ... -j RETURN
$IPTABLES -t mangle -A POSTROUTING -o $eth3 ... -j RETURN

If i managed to do this, i promise, i will document it to the imq wiki.

Any advice/help is appreciated!

--
Udv,
  Nandor
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