Re: Example on using fwmark with masks. Please help!!

Linux Advanced Routing and Traffic Control

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Do anybody explain this theme a bit?
Please, I need help with this.

Thanks!!!!

El Vie, 12 de Enero de 2007, 21:26, ArcosCom Linux User escribió:
> Hi,
>    could anyone provides any example about the use of ip route command to
> force the use of one route using masks in the mark?
>
> The configuration is:
>    1 LAN (zlan0) iface
>    N WAN (wan0 ... wanN) ifaces with static IPs and load balanced.
>    iptables 1.3.7
>    kernel 2.6.19.2
>    iproute 2.6.19
>
> I'm yet setting marks into packets for QoS and its working, I now want to
> set some bits (OR) at the end of the mark.
>
> For example, I want to use 0x8000 to add another mark to the packet for
> routing. The packet is market yet with a QoS mark (--set-mark), 0x5 (for
> example).
>
> I need:
>    1) The packet been marked with 0x8000 OR 0x0005 = 0x8005
>    2) Route the packet with 0x8005 AND 0x8000 = 0x8000 over wan0 (for
> example)
>    3) Classify the packet with 0x8005 AND 0x0005 into wan0 1:4 class (for
> example)
>
> I know how to do this not having sense about MASKs, but ... Could anybody
> put here how to do it with them?
>
> Another question: What is the length of the mask? 16bit? 32bit?
>
> Thanks!!
>
>
>
>
>
>


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