linux-kernel - Re: [PATCH] ipv6: no addrconf for slave devices

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Message-ID: <CALe+Z01M7RktfbNvR3rcUC_EMGN2zEjNOHScgo8B-bNrActFrQ@mail.gmail.com>
Date:	Fri, 16 Oct 2015 18:36:01 +0200
From:	Jan Blunck <jblunck@...radead.org>
To:	David Ahern <dsa@...ulusnetworks.com>
Cc:	Jiri Pirko <jiri@...nulli.us>, davem@...emloft.net,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>, jmorris@...ei.org,
	yoshfuji@...ux-ipv6.org, Patrick McHardy <kaber@...sh.net>,
	netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	fubar@...ibm.com
Subject: Re: [PATCH] ipv6: no addrconf for slave devices

On Fri, Oct 16, 2015 at 6:14 PM, David Ahern <dsa@...ulusnetworks.com> wrote:
> On 10/16/15 10:12 AM, Jan Blunck wrote:
>>
>> On Fri, Oct 16, 2015 at 6:02 PM, David Ahern <dsa@...ulusnetworks.com>
>> wrote:
>>>
>>> On 10/16/15 9:57 AM, Jan Blunck wrote:
>>>>
>>>>
>>>>
>>>> I don't think that enslaved ports should get network layer addresses.
>>>> This is one example with a team device:
>>>
>>>
>>>
>>> for VRF devices we do want the enslaved links to have link local
>>> addresses.
>>>
>>
>> That is interesting. As far I can see you are setting IFF_SLAVE in
>> do_vrf_add_slave() and therefore already stop IPv6 addrconf.
>>
>
> Check net-next. That had to be removed to get IPv6 working.
>

Thanks for the pointer.

So it would be better to differentiate between L2 and L3 ports and
only start addrconf on later ones? I don't think there is a flag that
allows for that though.
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