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

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Date:	Thu, 14 Mar 2013 20:33:32 +0100
From:	Sylvain Munaut <s.munaut@...tever-company.com>
To:	netdev@...r.kernel.org
Cc:	lorenzo@...gle.com
Subject: Who/What is supposed to remove IPv6 address from interface when
 moving from one network to another ?

Hi,

In a nutshell, I'm experiencing the same behavior as described here
http://kerneltrap.org/mailarchive/linux-netdev/2010/10/26/6288280 ...
but 2.5 years later ...

When switching network, my interface doesn't necessarily goes down and
so IPv6 prefixes from my old location are kept, causing issues.

I read the thread above, but it just seem to "stop" without really a
solution ...

So what's the proper thing to do ?  How is it supposed to work ?
I searched for a while and except for the thread above, I couldn't
find any reference on whose responsibility it is to cleanup. Given the
kernel added the address itself, I'd tend to agree with the original
poster and that the kernel should handle the cleanup.

Cheers,

     Sylvain
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