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Barracuda SSL VPN

This Product is End-of-Life and End-Of-Support

End-Of-Life and End-Of-Support on December 1st, 2020: All Barracuda SSL VPN sales will cease; neither new sales nor any renewals will be available. If you currently hold a maintenance and support contract, you will continue to receive our award-winning support and services until your contract expires. Please see the End-Of-Life definition as described in the End of Support and End of Life Information.

How to Configure PPTP

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PPTP, or Point-to-Point Tunneling Protocol, enables authorized mobile devices, including smartphones, to access your organization’s network. To connect to your Barracuda SSL VPN using PPTP, your remote device must have an appropriate VPN client that supports the desired authentication protocol, preferably MSCHAPv2.

As of 2012, PPTP is no longer considered secure. It is highly recommended that you switch away from PPTP.

Before you begin

  • On your organization's firewall, allow authentication traffic to and from the Barracuda SSL VPN. TCP over port 1723 and GRE (IP Protocol 47) forwarded to the Barracuda SSL VPN for PPTP connections to function.

Step 1. Enable PPTP server

On the Barracuda SSL VPN, configure PPTP to allow your remote users to authenticate and connect to the protected network.

  1. Log into the SSL VPN Web interface.
  2. Navigate to the RESOURCES > PPTP Server page.
  3. Verify that you have selected the correct user database on the top right of the page.

  4. In the Create PPTP Server section, enter a descriptive name for your PPTP server.
  5. In the IP Range Start/End fields, enter the first and last IP address of the DHCP range that should be assigned to remote systems connecting via PPTP.

    This IP range must reside in the network range that is configured in the Basic IP Configuration section of the applicance interface, and MUST NOT be part of any other DHCP range on your LAN.

  6. From the Policies list, select the available policies that you want to apply to the PPTP server, and add them to the Selected Policies list.
  7. Click Add.

The PPTP Server is now created and appears in the PPTP Server section. You can test the configuration by clicking the Launch link associated with the entry.

Step 2. Create a PPTP connection

On your remote device, create a PPTP connection to the Barracuda SSL VPN.

  1. Log in to the Barracuda SSL VPN on the client device.
  2. Go to the Resources tab.
  3. From My Resources, select the PPTP server and click to connect.

Step 3. Download the configuration to the client device

For more information, see: Provisioning Client Devices.

  1. From the Resources tab of the client device, go to Device Configuration.
  2. Tick the checkbox for the PPTP server entry.
  3. Click Provision on the bottom of the page.