Drag steps to the numbered slots on the right, or tap a step then tap a slot.
Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5
NSE7 Enterprise Firewall and VDOMs Practice Question
Drag and drop the steps to configure a site-to-site IPsec VPN on a FortiGate firewall into the correct order.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Phase 1, then Phase 2, then Routing, then Policies
Phase 1 establishes the IKE SA, Phase 2 creates the IPsec SA, then routing and policies are applied to allow traffic through the tunnel.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Phase 1, then Phase 2, then Routing, then Policies
Why this is correct
This is the correct order because Phase 1 establishes the IKE SA for secure key exchange, Phase 2 creates the IPsec SA for traffic encryption, routing directs traffic to the tunnel interface, and policies control which traffic is allowed through the tunnel.
- ✗
Phase 2, then Phase 1, then Routing, then Policies
Why it's wrong here
This is incorrect because Phase 2 depends on the IKE SA established in Phase 1. Attempting Phase 2 first would fail without the secure channel from Phase 1.
- ✗
Phase 1, then Policies, then Phase 2, then Routing
Why it's wrong here
This is incorrect because policies and routing are applied after the IPsec SA (Phase 2) is created. Policies reference the tunnel interface, which is not fully operational until Phase 2 completes.
- ✗
Policies, then Routing, then Phase 1, then Phase 2
Why it's wrong here
This is incorrect because the tunnel must be established before routing and policies can be applied. Policies and routing without a valid tunnel will not work.
Quick reference
VPN Protocol Comparison
| Protocol | Port | Encryption | Authentication | Use Case |
|---|---|---|---|---|
| IKEv2 / IPsec | UDP 500 / 4500 | AES-256 | Certificates / PSK | Site-to-site & remote access |
| SSL / TLS VPN | TCP 443 | TLS 1.3 | Certificates / MFA | Clientless remote access |
| L2TP / IPsec | UDP 1701 | AES (IPsec) | PSK / Certificates | Legacy remote access |
| WireGuard | UDP 51820 | ChaCha20 | Public keys | Modern high-performance VPN |
| PPTP | TCP 1723 | MPPE (weak) | MS-CHAPv2 | Legacy — avoid in production |
PPTP is considered insecure. IKEv2/IPsec and SSL VPN are the current recommended options.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This NSE7 practice question is part of Courseiva's free Fortinet certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the NSE7 exam.