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Date: Fri, 09 Jan 2009 06:14:06 +0000
From: "Bruce M. Simpson" <bms@FreeBSD.org>
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To: Peter Steele <psteele@maxiscale.com>
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Cc: freebsd-net@freebsd.org, Bruce Walker <bmw@wezel.com>
Subject: Re: Having problems with limited broadcast
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Bruce M. Simpson wrote:
> Peter Steele wrote:
>> ...
>> I personally like this idea, but I'm not sure I can sell it to the
>> others. Are there any restrictions to these 169.254.x.y addresses?
>>   
>
> 169.254.0.0/16 must never appear outside a link -- it is strictly 
> scoped to that link.

P.S. I checked in a change to ip_forward() a while back which enforces 
this, as forwarding such traffic between interfaces without NATting it 
or otherwise proxying it is a really bad idea (and also breaks the IPv4 
LL RFC).