netdev - Re: Problem with ARP-replies on Kernels 2.6 (possibly 3.0, but not 2.4!)

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Message-ID: <4E837E98.4080608@gmail.com>
Date:	Wed, 28 Sep 2011 22:07:52 +0200
From:	Nicolas de Pesloüan 
	<nicolas.2p.debian@...il.com>
To:	skandranon <skandranon@....at>
CC:	netdev@...r.kernel.org
Subject: Re: Problem with ARP-replies on Kernels 2.6 (possibly 3.0, but not
 2.4!)

Le 28/09/2011 19:49, skandranon a écrit :

> Basically, I would have expected MyMachine to answer ARP queries received via eth0 only if an
> address was queried that was assigned to eth0 (also secondary IP addresses assigned by "ip" or
> virtual interfaces generated by ifconfig).
>
> So: Is this a bug or a feature?

It is a feature.

You should have a look at the file Documentation/networking/ip-sysctl in the kernel source tree, in 
particular the entry about arp_ignore.

	Nicolas.
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