source/adminguide/networking/using_remote_access.rst

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Using Remote Access VPN
=======================

.. sidebar:: Clients
   :subtitle: Per Operating System instructions

   .. contents::
      :local: 
      :depth: 1

Remote Access VPN connection to VPC or Guest Network to access Instances and applications. This section considers you have enabled Remote access VPN, refer to: :ref:`remote-access-vpn`.

When connected to a VPC via VPN, the client have access to all Network Tiers.

Following information is required to confiture VPN client:

   - ``Public IP``: source NAT with VPN enabled.
   - ``IPsec pre-shared key``: Provide at the VPN activation.
   - ``Username`` VPN account username. 
   - ``Password`` VPN account password.


Mac OSX
-------

Mac OSX provide native IPsec VPN client.

#. Into System Preferences -> Network 

#. Click "+" button and add a VPN:

   - Interface: VPN
   - VPN Type: L2TP over IPSec
   - Service Name: (ex: test-vpc1)

   .. image:: /_static/images/vpn/osxvpn_netconf.png
      :align: center 
      :width: 400 px

#. Configure L2TP over IPsec

   .. image:: /_static/images/vpn/osxvpn_form1.png
      :align: center
      :width: 400 px

   .. image:: /_static/images/vpn/osxvpn_form2.png
      :align: center
      :width: 400 px 

#. Inside Authentication Settings...

   .. image:: /_static/images/vpn/osxvpn_form3.png
      :align: center
      :width: 400 px 

#. Connect into VPN

   #. Click Apply to apply Network configuration changes.
   #. Click Connect to initiate VPN connection.

      .. image:: /_static/images/vpn/osxvpn_connected.png
         :align: center
         :width: 400 px


Microsoft Windows 8
-------------------

Following instruction have been perform using Windows 8.1 using Native VPN client.

#. Create network VPN connection

   .. image:: /_static/images/vpn/win1.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win2.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win3.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win4.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win5.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win6.png
      :align: center 
      :width: 400 px


#. Configure VPN settings

   .. image:: /_static/images/vpn/win7.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win8.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win9.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win10.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win11.png
      :align: center 
      :width: 400 px

#. Initiate VPN connection

   .. image:: /_static/images/vpn/win12.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win13.png
      :align: center 
      :width: 400 px

   .. image:: /_static/images/vpn/win14.png
      :align: center 
      :width: 400 px


Ubuntu 22.04 LTS
-------

Ubuntu 22.04 LTS does not provide native IPsec VPN client via Network Manager.

#. Install the following packages to enable L2TP over IPsec VPN support:

   ```
   add-apt-repository universe
   apt update
   apt install network-manager-l2tp-gnome network-manager-l2tp strongswan xl2tpd
   ```

#. Restart Network Manager service to load the new plugins:

   ```
   systemctl restart NetworkManager
   ```

#. Navigate to Settings -> Network

   .. image:: /_static/images/vpn/ubuntuvpn1.png
      :align: center 
      :width: 400 px


#. Click "+" button and add a select Layer 2 Tunneling Protocol (L2TP):

   
   .. image:: /_static/images/vpn/ubuntuvpn2.png
      :align: center 
      :width: 400 px

#. Provide the VPN connection information:

.. image:: /_static/images/vpn/ubuntuvpn3.png
      :align: center
      :width: 400 px

#. Click on IpSec Settings and configure the following:

   .. image:: /_static/images/vpn/ubuntuvpn4.png
      :align: center
      :width: 400 px

#. Click on PPP Settings and select use MPPE encryption:

   .. image:: /_static/images/vpn/ubuntuvpn5.png
      :align: center
      :width: 400 px 

#. Connect into VPN

   #. Enable the cloudstack vpn connection.
   #. verify the connection by checking the ip address assigned on the ppp0 interface

   .. image:: /_static/images/vpn/ubuntuvpn6.png
      :align: center
      :width: 400 px 

   .. image:: /_static/images/vpn/ubuntuvpn7.png
      :align: center
      :width: 400 px