Starting KVM with public bridge as normal user

[T o n g <mlist4suntong@yahoo.com>]

Hi, 

I setup my KVM public bridge according to
https://help.ubuntu.com/community/KVM/Networking

But it doesn't say how I would start KVM with public bridge as normal 
user. This is what I get:

 $ kvm -net nic -net tap . . . 
 could not configure /dev/net/tun: Operation not permitted

Starting the same command as root runs fine. 

How do you manage to start KVM with public bridge as a normal user?

PS. Debian shipped KVM with /etc/kvm/kvm-ifup but without /etc/kvm/kvm-
ifdown. So whenever I use kvm -net nic -net tap . . . , I'll get

 /etc/kvm/kvm-ifdown: could not launch network script

Would that be OK? Would I get more and more TUN/TAP interfaces each time?

Thanks

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Tong (remove underscore(s) to reply)
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