netdev - Re: [PATCH net v4] net: ipv6: allow explicitly choosing optimistic addresses

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Date:	Thu, 05 Feb 2015 15:37:56 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ek@...gle.com
Cc:	netdev@...r.kernel.org, lorenzo@...gle.com,
	hannes@...essinduktion.org
Subject: Re: [PATCH net v4] net: ipv6: allow explicitly choosing optimistic
 addresses

From: Erik Kline <ek@...gle.com>
Date: Wed,  4 Feb 2015 20:01:23 +0900

> RFC 4429 ("Optimistic DAD") states that optimistic addresses
> should be treated as deprecated addresses.  From section 2.1:
> 
>    Unless noted otherwise, components of the IPv6 protocol stack
>    should treat addresses in the Optimistic state equivalently to
>    those in the Deprecated state, indicating that the address is
>    available for use but should not be used if another suitable
>    address is available.
> 
> Optimistic addresses are indeed avoided when other addresses are
> available (i.e. at source address selection time), but they have
> not heretofore been available for things like explicit bind() and
> sendmsg() with struct in6_pktinfo, etc.
> 
> This change makes optimistic addresses treated more like
> deprecated addresses than tentative ones.
> 
> Signed-off-by: Erik Kline <ek@...gle.com>

Applied, thanks.
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