This manual describes the IPSec VPN features of the FortiGate firewall. It includes IPSec VPN technology, key management, security combinations, tunnel negotiation, network topology, compatibility with IPSec VPN products, using authenticated IPSec VPNs, using pre-shared key IPSec VPNs, pre-shared key IPSec VPN examples, using a single password for VPN endpoint (client) authentication examples.
About this manual
The manual describes how to configure and manage VPN connections on FortiGate devices, covering IPSec, PPTP, and L2TP VPN types. It includes command‑line examples for restoring configurations, setting system operation modes, and adjusting interface access.
Additional sections cover firewall IP‑MAC binding, system interface settings, and a full index of VPN types and related commands, helping administrators deploy and maintain secure VPN services on FortiGate appliances.
What's inside
- IPSec VPN
- PPTP VPN
- L2TP VPN
- Configuration Commands
- System Operation Mode
- Restore Configuration
- Interface Access Settings
- Index
Specifications
| System Operation Modes | nat, transparent |
|---|
| Restore Config Command | restore config |
Frequently asked questions
How can I restore a FortiGate VPN configuration?
Use the command restore config to load a saved configuration file.
How do I change the system operation mode?
Run set system opmode nat or set system opmode transparent to select the desired mode.
How can I allow ping access on the internal interface?
Configure the interface with set system interface internal config allowaccess ping to enable ping traffic.