From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick McHardy <kaber@trash.net>
Subject: Re: SNAT from multiple interfaces with the same IP?
Date: Sun, 04 Dec 2005 17:02:09 +0100
Message-ID: <43931301.1040109@trash.net>
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	<20051204153729.GA5617@eychenne.org>
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To: Herve Eychenne <rv@wallfire.org>
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Herve Eychenne wrote:
> On Sun, Dec 04, 2005 at 04:31:59PM +0100, Patrick McHardy wrote:
> 
> 
>>I don't see why it wouldn't work, but you can't use -i in POSTROUTING
>>directly,
> 
> 
> BTW, I've always wondered why exactly...

Two reasons:

- The incoming interface is not known anymore in POST_ROUTING
- Locally generated packets don't even have an incoming interface