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From: Joe Menola <menola@sbcglobal.net>
Subject: Re: [Qemu-devel] tun interface
Date: Thu, 26 Aug 2004 19:02:27 -0500
References: <200408270830.21704.andrej@paradise.net.nz>
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To: qemu-devel@nongnu.org

On Thu August 26 2004 6:37 pm, Andrej wrote:
> It is present, but qemu doesn't create anything under
> /dev/net/tun even with tun pre-loaded. Do I  need to
> make the executable SUID or something?

By default qemu looks for /etc/qemu-ifup. This can be over ridden using  -n 
<path to network script>.
In either case this script needs to run as root. I use sudo for this.

My /etc/qemu-ifup

#!/bin/sh
sudo /sbin/ifconfig $1 <ip address>

script also needs to be executable.

This is only my understanding of the tun concept, and it works. :)

-jm