Re: Fwd: Can Netfilter "mark" be used with setkey spdadd?

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On Wednesday 2010-06-16 18:21, Ajay Lele wrote:
>
>I am working on a VPN solution where packets entering Linux box are
>manipulated using IPTables rules (SNAT, DNAT etc.). The nature of this
>manipulation is such that packets destined for different sites end up
>getting the same src/dst IP address when they reach the Netfilter
>POSTROUTING chain. However a different "mark" is set using the
>IPTables mark target by which packets destined for different sites can
>be distinguished from one another. Is there a way I can use this mark
>value while creating security policy using setkey spdadd so that
>packets are sent over respective tunnels (tunnels are created
>manually)

A packet can be marked when it enters the machine and retains the 
mark as long as it exists, even across transformation.

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