diff --git a/resources/templates/provision/grandstream/gxp2170/{$mac}.xml b/resources/templates/provision/grandstream/gxp2170/{$mac}.xml
index 7bd317a45b..35414e92b9 100644
--- a/resources/templates/provision/grandstream/gxp2170/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2170/{$mac}.xml
@@ -5720,6 +5720,7 @@
     <!-- # Number: 0, 1, 2 -->
     <!-- # Mandatory -->
     <!-- # P8 = 0 -->
+    <P8>{$grandstream_ip_address_mode}</P8>
 
     <!-- ########################################## -->
     <!-- # DHCP -->