netdev - Re: Linux IPv6 DAD not full conform to RFC 4862 ?

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Message-Id: <20080110.013857.37616214.yoshfuji@linux-ipv6.org>
Date:	Thu, 10 Jan 2008 01:38:57 +0900 (JST)
From:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
To:	kkeil@...e.de
Cc:	netdev@...r.kernel.org, yoshfuji@...ux-ipv6.org
Subject: Re: Linux IPv6 DAD not full conform to RFC 4862 ?

In article <20080109153656.GA16962@...gi.kke.suse.de> (at Wed, 9 Jan 2008 16:36:56 +0100), Karsten Keil <kkeil@...e.de> says:

> So I think we should disable the interface now, if DAD fails on a
> hardware based LLA.

I don't want to do this, at least, unconditionally.

Options (not exclusive):

- we could have "enable_ipv6" interface flag and check it in
  input/output paths
- we could have "dad_reaction" interface variable and
 > 1: disable interface
 = 1: disable IPv6
 < 0: ignore (as we do now)

--yoshfuji
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