diff --git a/util/update-etc-hosts.sh b/util/update-etc-hosts.sh
index 88db7a4..5f7a311 100644
--- a/util/update-etc-hosts.sh
+++ b/util/update-etc-hosts.sh
@@ -32,7 +32,7 @@ dir_path=$(dirname $0)
 node_type=`bash $(dirname $0)/detect-nodetype.sh`
 echo "Local host type is: $node_type"
 
-local_ip_address=`ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'`
+local_ip_address=`ifconfig $1 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'`
 echo "Local host IP is: $local_ip_address"
 
 local_host_name=`hostname`
@@ -41,25 +41,25 @@ sleep 3
 
 if [ "$node_type" == "controller" ] || [ "$node_type" = "controller_networknode" ]
 	then
-		if [ $# -eq 1 ]
+		if [ $# -eq 2 ]
 			then
 				echo "Adding controller node info to /etc/hosts"
-				change-ip-in-etc-hosts $1 $local_ip_address
+				change-ip-in-etc-hosts $2 $local_ip_address
 		else
-			echo "Correct syntax: $0 <controller-host-name>"
+			echo "Correct syntax: $0 <mgmt-interface-name> <controller-host-name>"
 			exit 1;
 		fi
 elif [ "$node_type" == "compute" ] || [ "$node_type" == "networknode" ]
 	then
-		if [ $# -eq 2 ]
+		if [ $# -eq 3 ]
 			then
 				echo "Updating local node IP address to /etc/hosts"
 				change-ip-in-etc-hosts $local_host_name $local_ip_address
 	
 				echo "Updating controller IP address to /etc/hosts"
-				change-ip-in-etc-hosts $1 $2
+				change-ip-in-etc-hosts $2 $3
 		else
-			echo "Correct syntax: $0 <controller-host-name> <controller-ip-address>"
+			echo "Correct syntax: $0 <mgmt-interface-name> <controller-host-name> <controller-ip-address>"
 			exit 1;
 		fi
 else
diff --git a/util/update-ip.sh b/util/update-ip.sh
index 86d27b0..3d79acd 100644
--- a/util/update-ip.sh
+++ b/util/update-ip.sh
@@ -4,35 +4,35 @@ node_type=`bash $(dirname $0)/detect-nodetype.sh`
 echo "Node Type detected as: $node_type"
 sleep 3
 
-if [ $# -lt 1 ]
+if [ $# -lt 2 ]
 	then
-		echo "Correct Syntax: $0 <controller-host-name> <controller-ip-address>"
+		echo "Correct Syntax: $0 <mgmt-interface-name> <controller-host-name> <controller-ip-address>"
 		echo "Second parameter required only for Network and Compute Node"
 		exit 1;
 fi
 
 
 function update-nova-config-ip() {
-	mgmg_interface_ip=`ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'`
+	mgmg_interface_ip=`ifconfig $1 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'`
 	echo "Local Node IP: $mgmg_interface_ip"
 	sleep 2
 
 	crudini --set /etc/nova/nova.conf DEFAULT my_ip $mgmg_interface_ip
 	crudini --set /etc/nova/nova.conf DEFAULT vncserver_proxyclient_address $mgmg_interface_ip
 
-	if [ "$1" == "controller" ]
+	if [ "$2" == "controller" ]
 		then
 			crudini --set /etc/nova/nova.conf DEFAULT vncserver_listen $mgmg_interface_ip
 			sleep 2
 			service nova-novncproxy restart
 		else
-			if [ -z "$2" ]
+			if [ -z "$3" ]
 				then	
-					echo "Correct syntax for Compute Node: $0 <controller-ip-address>"
+					echo "Correct syntax for Compute Node: $0 <mgmt-interface> compute <controller-ip-address>"
 					exit 1;
 				else
 					crudini --set /etc/nova/nova.conf DEFAULT vncserver_listen 0.0.0.0
-					crudini --set /etc/nova/nova.conf DEFAULT novncproxy_base_url http://$2:6080/vnc_auto.html
+					crudini --set /etc/nova/nova.conf DEFAULT novncproxy_base_url http://$3:6080/vnc_auto.html
 					sleep 2
 					service nova-compute restart
 			fi
@@ -43,22 +43,22 @@ function update-nova-config-ip() {
 
 case $node_type in
 	controller) 
-		bash $(dirname $0)/update-etc-hosts.sh $1
-		update-nova-config-ip controller
+		bash $(dirname $0)/update-etc-hosts.sh $1 $2
+		update-nova-config-ip $1 controller
 		bash $(dirname $0)/manage-services.sh all restart
 		;;
 	compute)
-		bash $(dirname $0)/update-etc-hosts.sh $1 $2
-		update-nova-config-ip compute $2
+		bash $(dirname $0)/update-etc-hosts.sh $1 $2 $3
+		update-nova-config-ip $1 compute $3
 		bash $(dirname $0)/manage-services.sh all restart
 		;;
 	networknode)
-		bash $(dirname $0)/update-etc-hosts.sh $1 $2
+		bash $(dirname $0)/update-etc-hosts.sh $1 $2 $3
 		bash $(dirname $0)/manage-services.sh all restart
 		;;
 	controller_networknode)
-		bash $(dirname $0)/update-etc-hosts.sh $1
-		update-nova-config-ip controller
+		bash $(dirname $0)/update-etc-hosts.sh $1 $2
+		update-nova-config-ip $1 controller
 		bash $(dirname $0)/manage-services.sh all restart
 		;;
 	*)