diff --git a/doc/install-guide/section_basics-networking.xml b/doc/install-guide/section_basics-networking.xml
index b5e09c9fe5..8d672084f1 100644
--- a/doc/install-guide/section_basics-networking.xml
+++ b/doc/install-guide/section_basics-networking.xml
@@ -29,7 +29,7 @@
     xlink:href="http://activedoc.opensuse.org/book/opensuse-reference/chapter-13-basic-networking"
     >openSUSE documentation.</link></para>
   <procedure os="sles;opensuse">
-    <title>To disable Network Manager:</title>
+    <title>To disable Network Manager</title>
     <step>
       <para>Use the YaST network module:</para>
       <screen os="opensuse;sles"><prompt>#</prompt> <userinput>yast2 network</userinput></screen>
@@ -62,6 +62,13 @@
     <link linkend="basics-networking-neutron">OpenStack Networking (neutron)
     </link> or <link linkend="basics-networking-nova">legacy
     networking (nova-network)</link> architecture.</para>
+  <note>
+    <para>All nodes require Internet access to install OpenStack packages
+      and perform maintenance tasks such as periodic updates. In most
+      cases, nodes should obtain Internet access through the management
+      network interface. For simplicity, the network diagrams in this guide
+      only show Internet access for OpenStack network services.</para>
+  </note>
   <xi:include href="section_basics-networking-neutron.xml"/>
   <xi:include href="section_basics-networking-nova.xml"/>
 </section>