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

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Message-Id: <20080109.153212.144388472.davem@davemloft.net>
Date:	Wed, 09 Jan 2008 15:32:12 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	kkeil@...e.de
Cc:	netdev@...r.kernel.org
Subject: Re: Linux IPv6 DAD not full conform to RFC 4862 ?

From: Karsten Keil <kkeil@...e.de>
Date: Wed, 9 Jan 2008 16:36:56 +0100

>    If the address is a link-local address formed from an interface
>    identifier based on the hardware address, which is supposed to be
>    uniquely assigned (e.g., EUI-64 for an Ethernet interface), IP
>    operation on the interface SHOULD be disabled.  By disabling IP
>    operation, the node will then:
> 
>    -  not send any IP packets from the interface,
> 
>    -  silently drop any IP packets received on the interface, and
> 
>    -  not forward any IP packets to the interface (when acting as a
>       router or processing a packet with a Routing header).

I question any RFC mandate that shuts down IP communication on a node
because of packets received from remote systems.

If the TAHI test can trigger this, so can a compromised system on your
network and won't that be fun? :-)
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