netdev - Re: Cannot re-enable 'auto' for IPv6 link local?

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Message-ID: <52421A6A.8050703@candelatech.com>
Date:	Tue, 24 Sep 2013 16:04:10 -0700
From:	Ben Greear <greearb@...delatech.com>
To:	netdev <netdev@...r.kernel.org>
Subject: Re: Cannot re-enable 'auto' for IPv6 link local?

On 09/24/2013 03:57 PM, Hannes Frederic Sowa wrote:
> On Tue, Sep 24, 2013 at 03:54:18PM -0700, Ben Greear wrote:
>> At one time, I'm fairly certain this worked, but not having much
>> luck in a hacked 3.9.11+ kernel:
>>
>> The goal is to enable the link-local address to be auto-configured.
>> At start of this, there is no /proc/sys/net/ipv6/config/eth30 dir
>> because all IPv6 addrs were removed (I suppose).
>>
>> # ./local/sbin/ip -6 addr add 2345::18 dev eth30
>> # echo 1 > /proc/sys/net/ipv6/conf/eth30/autoconf
>> # cat /proc/sys/net/ipv6/conf/eth30/autoconf
>> 1
>> # ./local/sbin/ip -6 addr del 2345::18 dev eth30
>> # cat /proc/sys/net/ipv6/conf/eth30/autoconf
>> cat: /proc/sys/net/ipv6/conf/eth30/autoconf: No such file or directory
>>
>>
>> What is the proper way to turn on ipv6 auto configuration?
>
> This issue is fixed by commit 876fd05ddbae03166e7037fca957b55bb3be6594 ("ipv6:
> don't disable interface if last ipv6 address is removed").
>
> Greetings,
>
>    Hannes
>


Thanks!

I'll add that to my 3.9 kernel.

A secondary problem in my case is that the NIC and/or fibre cable
has issues and it had just lost link and I did not notice
right away...

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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