View all questions & answers for the NSE 7 - Enterprise Firewall 7.6 Administrator Exam Materials exam


Question 14 Discussion

Refer to the exhibit. The ADVPN IPsec interface represents the VPN IPsec phase 1 from Hub A to Spoke 1 and Spoke 2, and from Hub B to Spoke 3 and Spoke 4. You must configure an ADVPN using IBGP and EBGP to connect Overlay 1 with Overlay 2. Which parameters must you configure in the phase 1 VPN IPsec configuration of the ADVPN tunnels? (Choose one answer)

  • A. set auto-discovery-forwarder enable and set remote-as x
  • B. set auto-discovery-sender enable and set network-id x
  • C. set auto-discovery-receiver enable and set remote-ip x
  • D. set auto-discovery-crossover enable and set enforce-multihop enable
Correct Answer: B

Brave-Dump Clients Votes

B 66.67%
D 33.33%

Comments



Jimiko Allen Dino 2025-11-12 12:11:34

Selected Answers: D


When configuring ADVPN (Auto-Discovery VPN) to connect overlay networks across different hubs using IBGP and EBGP, special configurations are required to allow spokes from different overlay networks to dynamically establish tunnels.
# set auto-discovery-crossover enable
# This allows cross-hub tunnel discovery in an ADVPN deployment where multiple hubs are used.
# Since Hub A and Hub B belong to different overlays, enabling crossover discovery ensures that spokes from one overlay can dynamically create direct tunnels to spokes in the other overlay when needed.
# set enforce-multihop enable
# This setting ensures that BGP peers using loopback interfaces can establish connectivity even if they are not directly connected.
# Multihop BGP sessions are required when using loopback addresses as BGP peer sources because the connection might need to traverse multiple routers before reaching the BGP neighbor.
# This is especially useful in ADVPN deployments with multiple hubs, where routes might need to cross from one hub to another.


Hasan Ahmed 2025-11-29 17:26:38

Selected Answers: D


D is correct Answer


Mike 2025-12-04 17:10:46

Selected Answers: B


since the ipsec interface in question is the Hub to Spoke interface answer B is correct
Study guide page 245
Hubs# config vpn ipsec phase1-interface
edit "ADVPN"
set auto-discovery-sender enable
set network-id x
end


Mahmoud Mohammedali 2025-12-09 14:01:29

Selected Answers: B


Correct answer: B. set auto-discovery-sender enable and set network-id x

In FortiGate ADVPN (Auto-Discovery VPN), the key Phase 1 parameters that enable dynamic shortcut creation and overlay separation are:


#set auto-discovery-sender enable
Enables the device (typically hubs) to advertise reachable prefixes and participate in shortcut discovery, allowing spokes to form on‑demand IPsec tunnels directly to each other.


#set network-id <x>
Tags the ADVPN domain/overlay. This ensures routes and shortcuts remain scoped to the correct overlay, which is essential when you’re connecting them with iBGP/EBGP while keeping control of which peers can auto‑discover each other.


Adam 2026-01-18 08:38:25

Selected Answers: D


https://docs.fortinet.com/document/fortigate/7.2.5/fortios-release-notes/743723
"849515"
Add auto-discovery-crossover option under config vpn ipsec phase1-interface to block or allow (default) the set-up of shortcut tunnels between different network IDs.
When auto-discovery-crossover is set to allow:
-> The cross-over shortcut connection will be initialized with network ID of 0.
-> The non-cross-over shortcut connection will use the configured network ID number.

As question says "You must configure an ADVPN using IBGP and EBGP to connect Overlay 1 with Overlay 2" (two different network IDs), then D is the correct answer.
"set ebgp-enforce-multihop enable" is needed in BGP config as both hubs would be using IPsec tunnel interface for BGP neighborship, and not physical interface.


Andres 2026-01-19 16:39:38

Selected Answers: B


The question is for "phase 1 VPN IPsec configuration", not for BGP, so B.


Anonymous User 2026-02-19 13:55:34

Selected Answers: B


Page 236


Mattia Bruno 2026-03-02 11:38:48

Selected Answers: B


Honestly it's better B
A - Forwarder is for the Hub2Hub
B - Is wrong because sender should be configured in the Spokes P1 not Hubs,
C - Remote IP doesn't exist as commands in P1 but receiver is for the Hub
D - Could be right but the question state what configuration of P1, and enforce-multi hop is a BGP configuration and the questions doesn't talk about shortcut, just connect which can be used the Hub2Hub VPN
So I say B, but with doubt


Anonymous User 2026-03-04 14:54:15

Selected Answers: B


It's B. Source: page 235 of the EFW 7.6 study guide.