NSE4 - FortiGate Study Guide with Labs
This updated guide includes important NSE4 concepts, useful commands, and practical lab examples to help with
hands-on practice.
What is NSE4?
NSE4 is a Fortinet certification focused on configuring, managing, and troubleshooting FortiGate firewalls.
Core Topics
• Firewall Policies
• NAT & VIP
• Routing
• SSL VPN & IPsec VPN
• High Availability (HA)
• Web Filtering
• Authentication
• Troubleshooting
Important Commands
get system status
show full-configuration
diagnose debug flow
diagnose sys session list
get router info routing-table all
Hands-on Labs
Lab 1 - Configure Firewall Policy
Create a LAN-to-WAN policy allowing users to access the internet. Enable NAT and test connectivity using ping.
Lab 2 - Configure VIP
Create a Virtual IP mapping Public IP 10.10.10.10 to Internal Server 192.168.1.10 and allow access using a
policy.
Lab 3 - SSL VPN
Configure SSL VPN for remote users, assign IP pool, and allow access to internal servers.
Lab 4 - HA Setup
Configure two FortiGate devices in Active-Passive HA mode and test failover.
Lab 5 - Troubleshooting
Use diagnose debug flow and logs to identify why traffic is denied by a firewall policy.
Exam Focus Areas
Topic
Priority
Firewall Policies
Very High
VPN
High
Routing
High
HA
Medium
Troubleshooting
Very High
Study Tips
• Practice daily on FortiGate VM.
• Focus on traffic flow and NAT.
• Learn how to read logs and debug output.
• Build small lab environments for testing.
• Review VPN and HA concepts carefully.