From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dmitri <dk-netfilter@nth.ca>
Subject: matching -d to a given interface without specifying ip address
Date: Sat, 02 Sep 2006 18:32:44 -0400
Message-ID: <44FA068C.1000202@nth.ca>
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Hello,

Is there a way to define a condition "those packets whose destination is 
the IP address of the given interface" without specifying the actual IP 
address? (it changes, thus needs to be detected and updated)

I want to be able to distinguish those packets addressed to the box, to 
be forwarded, from those just passing through it. (-i matches both)

Such packets can be discovered in the INPUT chains, after the "routing 
decision", but by then it's too late to do DNAT.

Thanks,

--Dmitri