netdev - Re: [PATCH net-next] ipv6: remove old token ipv6 address as soon as possible

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Date:	Tue, 25 Jun 2013 09:56:19 +0200
From:	Daniel Borkmann <dborkman@...hat.com>
To:	netdev@...r.kernel.org
CC:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Subject: Re: [PATCH net-next] ipv6: remove old token ipv6 address as soon
 as possible

On 06/24/2013 10:03 PM, Hannes Frederic Sowa wrote:
> If the tokenized ip address is re-set on an interface we depend on the
> arrival of a new router advertisment to call addrconf_verify to clean
> up the old address (which valid_lft is now set to 0). Old addresses can
> linger around for a longer time if e.g. the source of router advertisments
> vanishes.
>
> So, call addrconf_verify immediately after setting the new tokenized
> address to get rid of the old tokenized addresses.
>
> Cc: Daniel Borkmann <dborkman@...hat.com>
> Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

Agreed. This is also done when simply adding or modifying an address, so this
would be good for tokenized addresses, too. I've tested it also and it looks
good. Thanks Hannes !

Acked-by: Daniel Borkmann <dborkman@...hat.com>
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