Marks set in PREROUTING got lost

[Jan Engelhardt]

>> You have to mark it in the PREROUTING chain of the mangle table, to be 
>> able to match on it within the PREROUTING chain of the nat table.
>
>Is this also true, if I jump from PREROUTING mangle in a user
>defined chain and mark my packets there?

Just make sure it gets marked in a table/chain (or subchain thereof) 
before the nat-PREROUTING chain is hit, according to 
http://www.imagestream.com/~josh/PacketFlow-new.png


Jan Engelhardt
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