Technical Tip: Build Dialup IPsec tunnel using VPN Manager on FortiManager

Description

This article describes how to build a Dialup IPsec tunnel using VPN Manager in FortiManager.

Scope

FortiManager.

Solution

Note:

It is not possible to control the phase 2 quick mode selector while using VPN Manager, it sets 0.0.0.0/0.0.0.0 for Local and Remote address. Access should be controlled via firewall policies.

Configure VPN Manager for Dialup VPN tunnels:

1. Enable Centralized VPN Management, see this document Enabling central VPN management for reference.
2. Create a new community and set the topology as 'Remote Access'.

3. Set all the necessary configurations for the VPN community. Most important is to set a specific pre-shared key and choose the VPN Zone setting.
4. Create a new managed gateway. The Protected subnet can be 0.0.0.0/0.0.0.0, as the VPN manager does not set specific phase 2 selectors.
5. Set Role as 'Hub' and VPN interface as the one where all clients will connect to.
6. Set the Local gateway as the IP to which clients will connect; otherwise interface IP will be set if left as 0.0.0.0.
7. The following image shows various key configurations needed while creating IPsec tunnels:

Note:

The address object used for the Client Address Range should have 'type' set to 'IP Range'. Otherwise install will fail.

8. Install the policy package assigned to the FortiGate acting as HUB and which will perform IPsec configuration.
9. Device Manager will show the VPN zone created, as shown below:

10. Create polices using VPN Manager Zone.