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Date:      Sat, 3 Mar 2001 00:35:08 +0000
From:      David Malone <dwmalone@maths.tcd.ie>
To:        Matt Dillon <dillon@earth.backplane.com>
Cc:        Garrett Wollman <wollman@khavrinen.lcs.mit.edu>, Jonathan Lemon <jlemon@FreeBSD.ORG>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/netinet ip_input.c
Message-ID:  <20010303003508.A11948@walton.maths.tcd.ie>
In-Reply-To: <200103022229.f22MTaY09899@earth.backplane.com>; from dillon@earth.backplane.com on Fri, Mar 02, 2001 at 02:29:36PM -0800
References:  <200103012339.f21NdW309088@freefall.freebsd.org> <15006.60555.97100.465265@nomad.yogotech.com> <20010301184258.T25974@prism.flugsvamp.com> <15006.61041.727634.597339@nomad.yogotech.com> <200103020236.VAA06356@khavrinen.lcs.mit.edu> <200103022229.f22MTaY09899@earth.backplane.com>

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On Fri, Mar 02, 2001 at 02:29:36PM -0800, Matt Dillon wrote:
>     I'm not sure I understand how the commit changes anything.  If
>     a packet arrives on an interface with a destination address that does
>     not match the interface's address or aliases, and we aren't in
>     promiscuous mode, won't the controller reject the packet anyway?  The
>     kernel will never see it in the first place.  Right?

It's a comparison on IP address, not ethernet address, as I understand
it. Packets can be sent with your interfaces ethernet address but
the interfaces IP address for all sorts of reasons (hard wired
routes, arp proxying, you happen to be the default router, probably
ICMP redirects too?)

	David.

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