On Mon, Apr 28, 2003 at 09:41:09AM -0400, Andrew Brown wrote:
> since "extending" the creat/destroy interface might be a little
> tricky, how about asserting that all programs must go through three
> phases:
> 
> 	open /dev/tun#
> 
> 	set required options, specify link layer, etc
> 
> 	set interface to "up" and begin operating

This is how tun works these days. Changing a tun device from point to point
to broadcast has to be done via ioctl on the control device, before the
interface is turned up.

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
     NetBSD: 24 ans d'experience feront toujours la difference
--