Fortigate SSL VPN Integration
Last updated
Last updated
This guide explains the process of configuring multi-factor authentication (MFA) for your Fortinet Firewall using Mirket, and setting up the integration of your Fortinet Firewall with Mirket RADIUS.
This integration was tested with version v7.2.2 of Fortinet FortiGate.
Before proceeding with these procedures, ensure the following:
You've completed the installation and configuration of the Mirket (go to"" ).
End-users can access the FortiGate Firewall.
Ensure that FortiClient version 7.0.5 or a higher version is installed.
For RADIUS authentication in FortiGate Firewall VPN, you need to add a RADIUS server (the Mirket server ip address).
Follow these steps to configure a RADIUS server:
Access the FortiGate web UI using https://<IP address of FortiGate>
Select User & Authentication > RADIUS Servers. Then click on Create New.
Enter a name for the RADIUS server in the Name field; for instance, input "Mirket Radius."
Click on the Specify option in Authentication Method field, and then choose the PAP protocol for the authentication method.
Input the IP address of the Mirket (RADIUS server) into the IP/Name field.
Assign a shared secret key to identify your RADIUS client in the Secret field. Make sure to use the same shared secret key while configuring your RADIUS client resource in Mirket.
Click OK to confirm the settings.
After creating the RADIUS service, we set the RADIUS timeout value and global timeout value using the FortiGate CLI.
Once you've added the Mirket RADIUS server, you'll need to define a group that will authenticate using this server. Additionally, you can create a user assigned to this group.
Follow these steps to configure a user group:
Select User & Authentication > User Groups. Then click on Create New.
Enter a name in the Name field, for instance input Radius User Group.
Choose Firewall option from the Type field.
Click on Add under the Remote Groups section.
Choose the Mirket Radius you previously created in the Remote Server dropdown list.
Choose the Specify option in the Groups field.
In the Groups field, enter the group name you are going to create ,for instance input Radius User Group. Then click on OK. In the Group Name section, the authorizaiton profile in Mirket must be the same as the value.
Click on OK to confirm settings.
Follow these steps to configure SSL VPN settings:
Select VPN > SSL-VPN Settings.
Choose WAN1 from the Listen on Interfaces(s) dropdown list.
Enter 10443 in the Listen on Port field. You should define your own port here.
Select Fortinet_Factory from the Server Certificate dropdown list.
Toggle the Idle Logout option.
Click on Create New in the Authentication/Portal Mapping section.
Choose full-access option from the Portal dropdown list.
Then click on OK and keep the remaining settings as default.
Click on Apply to confirm settings.
An SSL VPN policy needs to be established to permit specific users and groups for SSL VPN usage.
To create an SSL VPN policy:
Select Policy & Objects > Firewall Policy. Then click on Create New.
Enter a name in the Name field.
Choose SSL-VPN tunnel interface(ssl.root) from the Incoming Interface dropdown list.
Choose the internal interface connected to the Mirket from the Outgoing Interface dropdown list, for example, lan.
Under Source, select “SSLVPN address you defined on portal settings” for Address and "Radius User Group" for User.
Under Destination, select the internal protected subnet under Address, such as "all”.
Choose "always" from the Schedule dropdown list.
Under Service select "ALL" option.
Keep the remaining settings as default values.
Click OK to confirm settings.
To enable Mirket to receive authentication requests from FortiClient, follow these steps:
Before starting, ensure that you have installed Mirket Radius Gateway from the Configuration > Gateway. To add a Radius Gateway to the Mirket, follow these steps:
Go to Configuration > Gateway and click on the Add Radius Gateway button.
On the displayed screen, enter a name for your Radius Gateway in the Name field.
Enter the SAM value of the gateway in the Sam Value field. In Mirket, user identification is done using the SAM (Security Account Manager) name. This is preferred over the standard username. This username is used for authentication and access controls.
Enter the IP address of the server where the gateway is installed in the Host IP Address field.
Enter the authentication port value you set for the gateway in the Auth Port field. The default value is 1812.
Enter the accounting port value you specified for the gateway in the Acc Port field. The default value is 1813. Note: After completing these fields, you must create a RADIUS client for the newly created RADIUS Gateway.
Click on the Add Radius Client option at the bottom of the displayed screen.
Enter a name for your Radius Client in the Radius Client field.
Enter the IP address of the client(firewall) that will communicate with the gateway in the IP Address field.
Enter the secret key that the client will communicate with the gateway in the Secret Key field.
Click on the Save button to confirm the settings.
After creating the Radius Gateway, click on the Download > Config from the menu on the right side of the gateway.
This option will generate a script related to the gateway, which will be displayed from the RADIUS Setup config file. The config file will automatically begin downloading once this option is selected.
Replace the existing config file in the "C:\MirketRadius" directory with the downloaded file. Alternatively, copy the displayed script and paste it into the config file in "C:\MirketRadius".
Then, restart the Mirket Radius Service.
You can check whether the Radius Gateway you created is active by navigating to Configuration > Gateway.
To set up multifactor authentication, make sure you have at least one user or group in Mirket.
If it is preferred to use a local user, you can first create a local group and then create a local user and make the user a member of the group. Alternatively, you can create a local user without creating a local group.
Radius Rules define user access to resources and the authentication methods available (such as SMS, Approve / Deny, OTP, etc.).
First, you should follow these steps:
Go to Configuration > Radius Rules.
Click on the Add Radius Rule button.
On the displayed screen, enter a name for the rule in the Name field.
Enter the rule description in the Description field.
Select the Radius Client to which the rule will apply from the Radius Client dropdown list.
Enter the source IP addresses to which the rule will apply in the Source Adress field.
Select the source countries where the rule will be applied from the Source Country dropdown list.
Click on the Next button.
Specify whether the rule will be applied to a user or a group.
After specifying, click on the Next button.
Select the users or groups to which the rule will apply. Transfer your selections to the Selected Users/Groups table by clicking the arrow icon next to the Available Users/Groups table.
Click on the Next button.
Select the time period when the rule will run.
All: The rule will run every day.
Recurring: The rule will run on the specified days and times.
One Time: The rule will run within the date range you specify.
After selecting, click on the Next button.
Specify whether the user or group will be granted access based on the rule in the Action field.
Select the authentication provider to which the rule will apply from the Auth Method dropdown list.
Select the attribute type as "FortigateGroupName" from the Attribute Type dropdown list.
Enter the group to be granted authorization in the Value field. Please make sure that the value is the same as the group name you specify in Fortigate.
Click on Save to confirm the settings.
To validate the integration between Mirket and your configured Fortinet Firewall, perform authentication using a Mirket MFA app on your mobile device. For RADIUS resources, available authentication methods include Approve/Deny authentication.
In this example, we illustrate the use of the approve/deny authentication method.
Launch FortiClient.
Select Configure VPN.
Enter a name for this connection in the Connection Name field.
Enter a description in the Description field.
Input the IP address of the listen on interface in Fortinet in the Remote Gateway field.
Tick the Customize port option and enter 10443(specified port).
Then, click on Save.
Enter your Mirket username in the Username field.
Enter your password in the Password field.
Click on Connect.
Then, select the 'Approve' option(found in the Mirket mobile app) immediately and make sure it doesn't time out.
Select the Radius User Group you created in the section from the Users/Groups dropdown list.
If it is preferred to use LDAP users, the priority External Source is created by pulling users from Active Directory or OpenLDAP in Mirket. Note: Before proceeding, ensure that you have installed Mirket LDAP Gateway. ()
