netdev - Re: [PATCH net-next] net: ipv6: send unsolicited NA on admin up

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Message-ID: <14982ed9-77b0-0e61-e938-b73c4807e30f@cumulusnetworks.com>
Date:   Thu, 13 Apr 2017 10:41:42 -0600
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Hannes Frederic Sowa <hannes@...essinduktion.org>,
        netdev@...r.kernel.org
Subject: Re: [PATCH net-next] net: ipv6: send unsolicited NA on admin up

On 4/13/17 5:45 AM, Hannes Frederic Sowa wrote:
> 
> 
> On Wed, Apr 12, 2017, at 20:49, David Ahern wrote:
>> ndisc_notify is the ipv6 equivalent to arp_notify. When arp_notify is
>> set to 1, gratuitous arp requests are sent when the device is brought up.
>> The same is expected when ndisc_notify is set to 1 (per ndisc_notify in
>> Documentation/networking/ip-sysctl.txt). The NA is not sent on NETDEV_UP
>> event; add it.
>>
>> Fixes: 5cb04436eef6 ("ipv6: add knob to send unsolicited ND on link-layer
>> address change")
>> Signed-off-by: David Ahern <dsa@...ulusnetworks.com>
> 
> Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org>
> 
> In future we might be able to make this a bit more robust when DAD is
> happening at the same time.


agreed.