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From: Mr Dash Four <mr.dash.four@googlemail.com>
Subject: Re: ipset and interfaces
Date: Tue, 24 May 2011 13:43:07 +0100
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> So it looks like a valid case, for a new set type with interfaces and IP 
> addresses/networks ;-) I'll work on it.
>   
Keep in mind though, that interfaces can be specified in "-i" as well as 
"-o" (i.e. input as well as output) - so you need to create some sort of 
matching mechanism which distinguishes between these. Obviously this is 
currently resolved in iptables with the "-i" and -"o" options respectively.