diff --git a/installation.rst b/installation.rst
index c1502a1..9e4be7e 100644
--- a/installation.rst
+++ b/installation.rst
@@ -225,7 +225,16 @@
 
 Install ONL
 -----------
-At the ONIE prompt, we need to download and install ONL. To fetch and install the latest compatible ONL, run:
+At the ONIE prompt, we need to download and install ONL.
+To be able to dowload ONL the management interface needs to have an IP.
+ONIE will try to obtain IP address from DHCP. In the case where DHCP service is not available, please configure it manually:
+.. code-block:: console
+
+    ip addr add  <IP>/<Netmask> dev <interface>
+    route add default gw <Gateway>
+    echo "nameserver 8.8.8.8" > /etc/resolv.conf
+
+To fetch and install the latest compatible ONL, run:
 
 .. code-block:: console
 
@@ -236,7 +245,7 @@
 
 The switch will automatically reboot into ONL after installation. Default login credential of ONL is: ``root/onl``
 
-We might want to configure a fixed IP address for the management interface.
+We might want to configure a fixed IP address for the management interface in ONL.
 First edit ``/etc/network/interfaces`` and configure ``ma1``, which is the management interface.
 
 .. code-block:: text