Configure Disk Station Manager to Use Your Synology NAS Device as a L2TP/IPSec VPN Server

You can convert your Synology NAS Disk Station into a VPN server using the DSM (Disk Station Manager) with the device. For this, you need to follow certain instructions that are listed in the steps below to help you configure your device easily.

  • To start with, set up the DiskStation of your Synology NAS and install the DSM (Disk Station Manager). To be able to connect to the VPN server from an outside local network, port forwarding needs to be configured, while enabling the accessibility of the disk station across the internet.
  • Now, you need to log in to the DSM by using an account that belongs to the group of administrators. Now, from the Main Menu, select the Package Center option and then, install the VPN server to configure a VPN connection.
  • Next, select the VPN Server option from the Main Menu from the left side panel on the screen, which will provide you options for different protocols like PPTP, L2TP and OpenVPN.
  • Now, under the ‘Settings’ option, click on the ‘L2TP/IPSec’ option to open the desired settings for configuration.
  •  Check the box for “Enable L2TP/IPSec VPN Server” and proceed with the next step.
  • Next, you need to modify certain settings on this page to set up your connection. In the field labeled ‘Dynamic IP Address’, enter the value for a network address that you wish to be assigned to the devices connecting to the VPN connection through this device.
  • Under the ‘Authentication’ option, you need to choose the option according to your needs, where PAP authenticates without encrypting passwords of the clients. The other option, MS-CHAP v2 encrypts the passwords by using version 2 of Microsoft CHAP.
  • Check the box for ‘Use Manual DNS’ and enter the DNS server’s IP address, which will be pushed to the clients. In case, you don’t enable this option, the DNS server that the Disk Station is using will be pushed to all the clients.
  • Under ‘IKE Authentication’ option, enter the value for a “pre-shared key”, which will be used for the authentication of the clients connecting to the device.
  • Now, click on the ‘Apply’ button to save all these settings.
  • Now, click on the ‘Management’ option on the ‘VPN Server’ page to check the status of the connection, which will read ‘enabled’ for an active connection.

Test with an Android Device

  • Now, to test the connection, you can configure an Android device to use with the connection configured above.
  • On your Android device, go to Settings, then Wireless & Networks and then to the VPN option to configure a profile for use.
  • Here, enter the desired values, as configured with the Synology NAS and then establish a connection using the log in credentials of your DSM.
  • After a successful connection, the username and other details will appear in the ‘Connection list’ option under the ‘Management’ option on the ‘VPN Server’ page.

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This guide helps you configure your Synology NAS device and test the connection by connecting an Android device to the connection.

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