diff --git a/lib/quantum b/lib/quantum
index d5733b3a8e..5b0455800c 100644
--- a/lib/quantum
+++ b/lib/quantum
@@ -270,8 +270,19 @@ function create_quantum_initial_network() {
     # Create a small network
     # Since quantum command is executed in admin context at this point,
     # ``--tenant_id`` needs to be specified.
-    NET_ID=$(quantum net-create --tenant_id $TENANT_ID "$PRIVATE_NETWORK_NAME" | grep ' id ' | get_field 2)
-    SUBNET_ID=$(quantum subnet-create --tenant_id $TENANT_ID --ip_version 4 --gateway $NETWORK_GATEWAY $NET_ID $FIXED_RANGE | grep ' id ' | get_field 2)
+    if is_baremetal; then
+        sudo ovs-vsctl add-port $OVS_PHYSICAL_BRIDGE $PUBLIC_INTERFACE
+        for IP in $(ip addr show dev $PUBLIC_INTERFACE | grep ' inet ' | awk '{print $2}'); do
+            sudo ip addr del $IP dev $PUBLIC_INTERFACE
+            sudo ip addr add $IP dev $OVS_PHYSICAL_BRIDGE
+        done
+        NET_ID=$(quantum net-create $PHYSICAL_NETWORK --tenant_id $TENANT_ID --provider:network_type flat --provider:physical_network "$PHYSICAL_NETWORK" | grep ' id ' | get_field 2)
+        SUBNET_ID=$(quantum subnet-create --tenant_id $TENANT_ID --ip_version 4 ${ALLOCATION_POOL:+--allocation-pool $ALLOCATION_POOL} --gateway $NETWORK_GATEWAY $NET_ID $FIXED_RANGE | grep ' id ' | get_field 2)
+        sudo ifconfig $OVS_PHYSICAL_BRIDGE up
+    else
+        NET_ID=$(quantum net-create --tenant_id $TENANT_ID "$PRIVATE_NETWORK_NAME" | grep ' id ' | get_field 2)
+        SUBNET_ID=$(quantum subnet-create --tenant_id $TENANT_ID --ip_version 4 --gateway $NETWORK_GATEWAY $NET_ID $FIXED_RANGE | grep ' id ' | get_field 2)
+    fi
 
     if is_service_enabled q-l3; then
         # Create a router, and add the private subnet as one of its interfaces