netdev - Re: [PATCH] [IPV6] ROUTE: Make sending algorithm more friendly with RFC 4861.

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Message-Id: <20080119.003536.60082707.davem@davemloft.net>
Date:	Sat, 19 Jan 2008 00:35:36 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	yoshfuji@...ux-ipv6.org
Cc:	mitch@...ux.vnet.ibm.com, netdev@...r.kernel.org
Subject: Re: [PATCH] [IPV6] ROUTE: Make sending algorithm more friendly
 with RFC 4861.

From: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@...ux-ipv6.org>
Date: Sat, 19 Jan 2008 02:00:30 +0900 (JST)

> We omit (or delay) sending NSes for known-to-unreachable routers
> (in NUD_FAILED state) according to RFC 4191 (Default Router Preferences
> and More-Specific Routes).
> But this is not fully compatible with RFC 4861 (Neighbor Discovery Protocol
> for IPv6), which does not remember unreachability of neighbors.
> 
> So, let's avoid mixing sending algorithm of RFC 4191 and that of RFC 4861,
> and make the algorithm more friendly with RFC 4861 if RFC 4191 is disabled.
> 
> Issue was found by IPv6 Ready Logo Core Self_Test 1.5.0b2 (by TAHI Project),
> and has been tracked down by Mitsuru Chinen <mitch@...ux.vnet.ibm.com>.
> 
> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>

Applied to net-2.6, thanks.
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