Re: CONNMARK udp comprehension question

[Peter Warasin <peter@endian.com>]

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Hi Jörg

Thanks for your answer. Much appreciated!

Jörg Lübbert wrote:
> This might help you without the need to mess with marks.
> For each uplink interface with an incremental $x
> alternatively use -j CONNMARK --restore-mark in -t mangle PREROUTING so
> that ip rules can match the mark or as a 3rd option use the ROUTE target.


Actually i have it already like you mentioned:

----------------------------
ip rule add from 192.168.75.0/24 lookup uplink-uplink1
ip route add default via 192.168.75.1 table uplink-uplink1

ip rule add from 192.168.69.0/24 lookup uplink-main
ip route add default via 192.168.69.1 table uplink-main
----------------------------

this should be ok for connections starting from the box, but seems that
is not for udp connections.

this works for connections passing through the box and also for tcp
connections
going to the box.

----------------------------
ip rule add prio 200 fwmark 0x20 lookup uplink-uplink1
ip rule add prio 200 fwmark 0x40 lookup uplink-main

-A PREROUTING -j INMARK -m state --state NEW
-A PREROUTING -j STOREMARK -m state ! --state NEW
-A INPUT -j INMARK -m state --state NEW
-A OUTPUT -j STOREMARK -m state ! --state NEW

-A INMARK -i eth3 -j CONNMARK --set-mark 0x20
-A INMARK -i eth4 -j CONNMARK --set-mark 0x40

-A STOREMARK -m connmark ! --mark 0x0 -j CONNMARK --restore-mark
----------------------------


but not for udp.

should'nt this work?

if i put in ulog rules i see that udp packets certainly will be
marked when coming in but don't have a mark when will going out.

just to know that i am not completely wrong.

peter

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