netdev - Re: [PATCH net-next] ipv6: split duplicate address detection and router solicitation timer

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Message-Id: <20130625.162358.2018248422018779273.davem@davemloft.net>
Date:	Tue, 25 Jun 2013 16:23:58 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	hannes@...essinduktion.org
Cc:	netdev@...r.kernel.org, fleitner@...hat.com,
	yoshfuji@...ux-ipv6.org, dlstevens@...ibm.com
Subject: Re: [PATCH net-next] ipv6: split duplicate address detection and
 router solicitation timer

From: Hannes Frederic Sowa <hannes@...essinduktion.org>
Date: Sun, 23 Jun 2013 18:39:01 +0200

> This patch splits the timers for duplicate address detection and router
> solicitations apart. The router solicitations timer goes into inet6_dev
> and the dad timer stays in inet6_ifaddr.
> 
> The reason behind this patch is to reduce the number of unneeded router
> solicitations send out by the host if additional link-local addresses
> are created. Currently we send out RS for every link-local address on
> an interface.
> 
> If the RS timer fires we pick a source address with ipv6_get_lladdr. This
> change could hurt people adding additional link-local addresses and
> specifying these addresses in the radvd clients section because we
> no longer guarantee that we use every ll address as source address in
> router solicitations.
> 
> Cc: Flavio Leitner <fleitner@...hat.com>
> Cc: Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
> Cc: David Stevens <dlstevens@...ibm.com>
> Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

Applied.
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