netdev - Re: Who/What is supposed to remove IPv6 address from interface when moving from one network to another ?

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Message-ID: <20130318183407.GA2740@order.stressinduktion.org>
Date:	Mon, 18 Mar 2013 19:34:07 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Lorenzo Colitti <lorenzo@...gle.com>
Cc:	Dan Williams <dcbw@...hat.com>,
	Sylvain Munaut <s.munaut@...tever-company.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: Who/What is supposed to remove IPv6 address from interface when moving from one network to another ?

On Mon, Mar 18, 2013 at 09:51:55AM -0700, Lorenzo Colitti wrote:
> On Thu, Mar 14, 2013 at 12:48 PM, Dan Williams <dcbw@...hat.com> wrote:
> > The kernel does not (and shouldn't) trigger anything on carrier change as that's a
> > site-specific/user-specific policy.
> 
> Actually, it *does* trigger events on carrier change: it creates the
> addresses when you connect. It just doesn't delete them when you
> disconnect. So you can get addresses without a userspace daemon, but
> you can never delete them without a userspace daemon.

Not directly related, but I wonder if we should treat the change of the
mac address as a carrier change in ipv6 to create a new ll address. I
did not find any satisfying answer yet.

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