Future developments in FortiOS will significantly impact FortiGate models with 2 GB of RAM or less, particularly regarding SSL VPN functionality. Starting with version 7.6, SSL VPN in web and tunnel modes will no longer be available on these models, neither through the graphical interface (GUI) nor the command-line interface (CLI). Additionally, SSL VPN settings from previous versions will not be migrated.
Affected Models:
• FGT-40F, FWF-40F and their variants
• FGT-60F, FWF-60F
• FGT-61F, FWF-61F
• FGR-60F and 2 GB variants
• FGT-30E, FWF-30E
• FGT-50E, FWF-50E
• FGT-60E, FWF-60E
• FGR-60E and 2 GB variants
• FGT-30G, FWF-30G
• FGT-50G, FWF-50G
To check if your model has 2 GB of RAM, you can run the following command in the CLI:
diagnose hardware sysinfo conserve
If the total RAM value is below 2000 MB, your FortiGate has 2 GB of RAM or less.
Migration to IPsec VPN
For businesses currently relying on SSL VPN, it is crucial to plan a migration to IPsec VPN. Fortinet provides a comprehensive guide to facilitate this transition:
SSL VPN to IPsec VPN Migration Guide
For more details on the discontinuation of SSL VPN for 2 GB models, refer to the official release notes:
Implications for Network Administrators
These changes highlight the importance of selecting FortiGate models with 4 GB of RAM or more to ensure the availability of critical features such as SSL VPN in future FortiOS versions. Businesses using 2 GB models should consider upgrading or transitioning to IPsec VPN to avoid service disruptions.
For businesses using FortiGate models with 2 GB of RAM, it is strongly recommended to stay on FortiOS version 7.2 to retain all features, including SSL VPN in web and tunnel modes. This version provides proven stability and maximum compatibility with essential functionalities, ensuring no loss or degradation of services. By avoiding upgrades to later versions (such as 7.4 or 7.6), you can ensure that all currently available features remain operational.
End of Support for FortiOS
| Version | End of Support | Notes |
| FortiOS 6.4 | December 2024 | Approaching end of support; upgrade is recommended. |
| FortiOS 7.0 | June 2025 | General support ended; migration to 7.2 is advised. |
| FortiOS 7.2 | September 2026 | Stable version with extended support; ideal for 2 GB RAM models. |
| FortiOS 7.4 | November 2027 | Not recommended for 2 GB RAM models due to feature limitations. |
| FortiOS 7.6 | TBD | SSL VPN functionality removed for models with 2 GB RAM or less. |
Staying on version 7.2 until its end of support ensures optimal performance while allowing a planned transition to new hardware or alternatives like IPsec VPN.