From: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com>
To: Roy Marples <roy@marples.name>, netdev@vger.kernel.org
Cc: hideaki.yoshifuji@miraclelinux.com,
"David S. Miller\"" <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Patrick McHardy <kaber@trash.net>
Subject: Re: [PATCH] ipv6: do not add link-local address if one already exists
Date: Mon, 11 Aug 2014 09:27:50 +0900 [thread overview]
Message-ID: <53E80E06.3070704@miraclelinux.com> (raw)
In-Reply-To: <d630f87aa617098553c3a3361fcf50aa@mail.marples.name>
Hello.
Roy Marples wrote:
> Hi
>
> Currently the kernel will always add an IPv6 link-local address
> based on the hardware address when the interface is brought up.
> This is probably based on the assumption that userland would
> never add one before the interface is brought up.
>
> However, one at least one userland application (dhcpcd) does this so
> it can implement RFC7217 which can be used for link-local addresses
> as well.
>
> Attached is a patch which checks to see if a link-local address exists
> before indiscriminately adding one.
Well, I think this is incomplete, for example, we will continue generating
global address from eui64.
I think we should implement such functionality through "if token" bits.
--yoshfuji
prev parent reply other threads:[~2014-08-11 0:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-10 19:56 [PATCH] ipv6: do not add link-local address if one already exists Roy Marples
2014-08-10 20:37 ` Hannes Frederic Sowa
2014-08-11 0:05 ` Roy Marples
2014-08-11 0:11 ` Hannes Frederic Sowa
2014-08-11 21:22 ` Roy Marples
2014-08-13 17:10 ` Jiri Pirko
2014-08-11 0:27 ` YOSHIFUJI Hideaki [this message]
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