[LARTC] IMQ and fwmark

[Daniel Brahneborg <basic@chello.se>]

Hi all,

I want to divide the incoming traffic between what should go to
the firewall and what should be forwarded to the local network
behind it.  I started with the IMQ example config, but added an
extra htb class right below "10:1" to get the two sfq's to borrow
each other's bandwidth.

However, I can't figure out how to set the two marks.  According to
this picture, taken from http://lartc.org/lartc.html, I thought I could
set the marks in FORWARD and INPUT, but that didn't work at all.  The
traffic ends up in imq0 as it should, but only goes to the default
class.  Moving the '-j IMQ' to the INPUT and FORWARD tables didn't
work either.  What have I done wrong?

        +------------+                +---------+               +-------------+
Packet -| PREROUTING |--- routing-----| FORWARD |-------+-------| POSTROUTING |- Packets
input   +------------+    decision    +---------+       |       +-------------+    out
                             |                          |
                       +-------+                    +--------+   
                       | INPUT |---- Local process -| OUTPUT |
                       +-------+                    +--------+

iptables -t mangle -A INPUT   -i $EXTERNAL_INTERFACE -p tcp -j MARK --set-mark 0x1
iptables -t mangle -A FORWARD -i $EXTERNAL_INTERFACE -p tcp -j MARK --set-mark 0x2
iptables -t mangle -A PREROUTING -i $EXTERNAL_INTERFACE -j IMQ

/Basic

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/