linux-kernel - Re: [RFC] ARP notify option

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Date:	Tue, 06 Mar 2007 15:18:07 -0600
From:	"Chris Friesen" <cfriesen@...tel.com>
To:	Stephen Hemminger <shemminger@...ux-foundation.org>
CC:	David Miller <davem@...emloft.net>, jeremy@...p.org, ak@....de,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	virtualization@...ts.osdl.org, xen-devel@...ts.xensource.com,
	chrisw@...s-sol.org, zach@...are.com, rusty@...tcorp.com.au,
	ian.pratt@...source.com, Christian.Limpach@...cam.ac.uk,
	netdev@...r.kernel.org, jeff@...zik.org
Subject: Re: [RFC] ARP notify option

Stephen Hemminger wrote:

> +arp_notify - BOOLEAN
> +	Define mode for notification of address and device changes.
> +	0 - (default): do nothing
> +	1 - Generate gratuitous arp replies when device is brought up
> +	    or hardware address changes.

Did you consider using gratuitous arp requests instead?  I remember 
reading about some hardware that updated its arp cache on gratuitous 
requests but not gratuitous replies.

Chris
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