Date: Thu, 14 Sep 2006 10:33:32 +0900
From: Stephen Hemminger <shemminger@osdl.org>
To: Philip Craig <philipc@snapgear.com>
Cc: Joerg Roedel <joro-lkml@zlug.org>, linux-kernel@vger.kernel.org,
       netdev@vger.kernel.org, davem@davemloft.net
Subject: Re: [PATCH] EtherIP tunnel driver (RFC 3378)
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In-Reply-To: <4508AE92.1090202@snapgear.com>
References: <20060911204129.GA28929@zlug.org>
	<4508AE92.1090202@snapgear.com>
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On Thu, 14 Sep 2006 11:21:22 +1000
Philip Craig <philipc@snapgear.com> wrote:

> Joerg Roedel wrote:
> > +	 To configure tunnels an extra tool is required. You can download
> > +	 it from http://zlug.fh-zwickau.de/~joro/projects/ under the
> > +	 EtherIP section. If unsure, say N.
> 
> To obtain a list of tunnels, this tool calls SIOCGETTUNNEL
> (SIOCDEVPRIVATE + 0) for every device in /proc/net/dev. I don't think
> this is safe, but I don't have a solution for you.
> 
> Is there a reason why you have a separate tool rather than modifying
> iproute2?
> 
> I don't know if you are aware of this older etherip patch by Lennert
> Buytenhek: http://www.wantstofly.org/~buytenh/etherip/

SIOCDEVPRIVATE usage makes it hard to do 32 bit compatibility layer.
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