--- scripts/qemu-ifup.orig	2007-04-28 12:43:42.514362441 -0500
+++ scripts/qemu-ifup	2007-04-28 14:30:36.507875100 -0500
@@ -1,5 +1,19 @@
 #!/bin/sh
-
-switch=$(/sbin/ip route list | awk '/^default / { print $NF }')
-/sbin/ifconfig $1 0.0.0.0 up
-/usr/sbin/brctl addif ${switch} $1
+cmd=""
+if [ "$EUID" != 0 ]; then 
+	if [ -x "/usr/bin/sudo" ]; then
+		cmd="/usr/bin/sudo "
+	else 
+		echo "You must have sudo or root privileges to bring up a network interface"
+		exit 0
+	fi
+fi
+echo "Bringing up interface $1"
+switch=$(/sbin/ip route list | awk '/^default / { print $5 }')
+if [[ $(/sbin/ifconfig | grep -c $1) -gt 0 ]]; then
+       	${cmd}/sbin/brctl delif ${switch} $1
+	${cmd}/sbin/ifconfig $1 down
+fi
+${cmd}/usr/bin/tunctl -u $(/usr/bin/whoami) -t $1
+${cmd}/sbin/ifconfig $1 0.0.0.0 promisc up
+${cmd}/sbin/brctl addif ${switch} $1