From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [iproute2 patch]: Add 'ip tuntap' facility for managing
 tun/tap devices
Date: Wed, 27 May 2009 13:43:31 -0700 (PDT)
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From: David Woodhouse <dwmw2@infradead.org>
Date: Wed, 27 May 2009 17:49:32 +0100

> On Wed, 2009-05-27 at 09:38 -0700, Stephen Hemminger wrote:
>> Almost all of iproute2 is based on netlink, I don't want to add non netlink
>> interfaces. 
> 
> So you want to add a new interface to the kernel which duplicates the
> one we've had for years, then make userspace which will only work with
> newer kernels?

I agree, Stephen just put in the ioctl() or whatever based support
for TUN devices.  We've done stuff like this before in iproute2
so your arguments against this are hogwash.