netdev - Re: [PATCH v2] ipv6: fix inconsistent prefix route handling

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Date:	Mon, 17 Feb 2014 14:13:27 +0100
From:	Steven Barth <cyrus@...nwrt.org>
To:	netdev@...r.kernel.org
CC:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Subject: Re: [PATCH v2] ipv6: fix inconsistent prefix route handling

Ah sorry, maybe I was a bit unclear about this. With temporary addresses 
I meant addresses created like this:

ip address add 2001:db8::1/64 dev eth0 valid_lft 1234 preferred_lft 1001

or the equivalent netlink-calls and with permanent addresses i was 
referring to addresses created similarly but with an infinite lifetime 
(e.g. through ip without giving valid_lft or preferred_lft arguments).

Hope that makes it clear.


Cheers,

Steven


On 17.02.2014 14:05, Hannes Frederic Sowa wrote:
> On Mon, Feb 17, 2014 at 07:41:42AM +0100, Steven Barth wrote:
>> Hannes Frederic Sowa wrote:
>>> This could too easily clean up valid on-link information if the address
>>> just happens to be in the same subnet. Would (ifp-flags &
>>> (IFA_F_PERMANENET|IFA_F_TEMPORARY) && !(...)) solve the problem, too?
>> No, that doesn't do the trick unfortunately. Seems that the
>> (non-permanent) address created by "ip" don't have IFA_F_TEMPORARY set.
>> Any other good ideas?
> We are talking about managed temp addresses, no? What ip command do you use?
>
> Bye,
>
>    Hannes
>
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