diff --git a/xCAT-server/share/xcat/install/sles/compute.sles12.tmpl b/xCAT-server/share/xcat/install/sles/compute.sles12.tmpl
index e499336aa..1bfc9c6ab 100644
--- a/xCAT-server/share/xcat/install/sles/compute.sles12.tmpl
+++ b/xCAT-server/share/xcat/install/sles/compute.sles12.tmpl
@@ -76,6 +76,7 @@
           <startmode>onboot</startmode>
         </interface>
       </interfaces>
+      <keep_install_network config:type="boolean">true</keep_install_network> 
       <routing>
         <ip_forward config:type="boolean">false</ip_forward>
         <routes config:type="list"/>
diff --git a/xCAT-server/share/xcat/install/sles/service.sles12.tmpl b/xCAT-server/share/xcat/install/sles/service.sles12.tmpl
index f7cc1ecff..f3f8be272 100644
--- a/xCAT-server/share/xcat/install/sles/service.sles12.tmpl
+++ b/xCAT-server/share/xcat/install/sles/service.sles12.tmpl
@@ -112,6 +112,7 @@
           <startmode>onboot</startmode>
         </interface>
       </interfaces>
+      <keep_install_network config:type="boolean">true</keep_install_network>
       <routing>
         <ip_forward config:type="boolean">false</ip_forward>
         <routes config:type="list"/>