diff --git a/install/install.conf b/install/install.conf
index 7315c908..fdae9918 100755
--- a/install/install.conf
+++ b/install/install.conf
@@ -1,6 +1,8 @@
 #####################################
 # Config File for Compass Installer #
 #####################################
+# User Email
+export USER_EMAIL="lab@huawei.com"
 # OS_INSTALLER indicates the tool for OS provisioning, default is 'cobbler'.
 export OS_INSTALLER="cobbler"
 
@@ -24,6 +26,8 @@ export PUBLIC_NIC="eth0"
 
 # External NIC IP address, use the IP assigned to PUBLIC_NIC by default
 export PUBLIC_IP=
+export PUBLIC_NETMASK=
+export PUBLIC_GATEWAY=
 
 # Install network config, it is a private network
 export NIC="eth1"