From owner-freebsd-net@FreeBSD.ORG  Wed Mar 14 18:20:54 2007
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Date: Wed, 14 Mar 2007 18:20:51 +0000
From: "Bruce M. Simpson" <bms@FreeBSD.org>
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To: Gleb Smirnoff <glebius@FreeBSD.org>, "Bruce M. Simpson" <bms@FreeBSD.org>,
	freebsd-net@FreeBSD.org, Vladimir Ivanov <wawa@yandex-team.ru>, 
	bug-followup@FreeBSD.org
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Subject: Re: kern/106722: [net] [patch] ifconfig may not connect	an	interface
 to known network
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Gleb Smirnoff wrote:
> I was afraid that this would raise an argument on multipath routing. Let's
> temporary do not speak about multipath but just decide what is the correct
> way to remove conflicting routes when we are assigning an IP prefix to a
> local interface?
>   
My suggestion is to take the second approach you outlined but modify it 
slightly.

That way, the conflict between the 'connected' FTE introduced by 
ifconfig'ing the interface and the pre-existing FTE for that network 
prefix, may be resolved in a manner which doesn't break current 
consumers of the routing code, and leaves the way open to do multipath 
later w/o problems.

Regards,
BMS