CloudLabBox
Try the free demo

FortiGate lab 12 of 25

Passive authentication: RSSO and FSSO

Identify users without a login prompt: let a network access server's RADIUS accounting tell FortiGate who is on which address (RSSO), build policies on those identities, then set up and troubleshoot the FSSO side of the same idea for Active Directory.

Run this lab

It needs Lite: its 5 nodes are set to 5 vCPU and 6,656 MB in total. That fits the free demo too.

In your workspace: Shared, then FortiGate NSE 4 guided labs, then 12 - Passive authentication - RSSO and FSSO

Try it free for 30 minutesRun it on Lite from £3 a day

The free demo needs no card and no email. Every lab plan includes every guided lab.

Level
Advanced
Time
About 60 minutes
Nodes need
5 vCPU, 6,656 MB
Smallest plan
Lite

The scenario

Engineers hate the login page from lab 10: their laptops already authenticate to the network through Harbourside's network access control (NAC) system, which sends RADIUS accounting messages saying "user bkhan is now on 10.1.10.50". The security lead wants FortiGate to reuse that identity, so engineers get the web with no prompt, while machines with no identity (such as PC1) get nothing. Head office also runs Active Directory, so you'll prepare the FortiGate side of Fortinet single sign-on (FSSO) for when the collector is installed.

DeviceInterfaceAddressRole
FGT1port2 (LAN)10.1.10.1/24H1 10.1.10.50 (bkhan's laptop, reserved), PC1 10.1.10.10
FGT1port3 (SERVERS)10.1.30.1/24SRV1 10.1.30.10 plays the NAC and the future FSSO collector
FGT1port1 (ISP-A)203.0.113.1/24INET, gateway 203.0.113.254

Teaching values: RADIUS accounting secret RadSecret1!; the NAC puts the user's group in the RADIUS Class attribute (bkhan → Engineering).

What you’ll practise

  • Compare active and passive authentication and when each fits
  • Configure RADIUS single sign-on (RSSO) and an RSSO user group
  • Write a policy that only matches passively identified users
  • Explain FSSO DC agent and collector agent (polling) modes and their ports
  • Configure an FSSO agent connection and read its status and user list

The tasks

  1. Start the lab
  2. Active versus passive
  3. Receive RADIUS accounting (RSSO)
  4. A policy for passively identified users
  5. Watch identities arrive and leave
  6. Prepare FSSO for Active Directory

The Lab Tasks pane has the scenario, these tasks, the checks to run, hints and the full solution.

Topology and devices

The network as it opens in EVE-NG, drawn from the lab’s own canvas, and the image each node runs.

Topology of Passive authentication - RSSO and FSSO5 nodes and 1 network, 5 links. Every link is listed as text below the diagram.FGT1INETPC1H1SRV1LANeth0eth0port2port1eth0port3eth0
5 nodes and 1 network, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • FGT1 port1 to INET eth0
  • FGT1 port2 to LAN (network)
  • PC1 eth0 to LAN (network)
  • H1 eth0 to LAN (network)
  • FGT1 port3 to SRV1 eth0
Nodes in Passive authentication: RSSO and FSSO, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
FGT1Fortinet FortiGatefortinet-FGT-v7.0.17.M-build06821 vCPU, 2,048 MB
INETEVE-NG GUI server (Docker)eve-gui-server:latest1 vCPU, 1,024 MB
PC1EVE-NG GUI server (Docker)eve-gui-server:latest1 vCPU, 2,048 MB
H1Alpine Linuxclbalpinebase-alpine-base-3-20-31 vCPU, 512 MB
SRV1EVE-NG GUI server (Docker)eve-gui-server:latest1 vCPU, 1,024 MB

How to open this lab

  1. Sign in to your workspace at lab.cloudlabbox.com.

  2. In File Manager, open Shared, then the folder FortiGate NSE 4 guided labs.

  3. Open 12 - Passive authentication - RSSO and FSSO and start its nodes, then open Lab Tasks for the scenario and the steps.

The lab is read-only. You can start the nodes and configure the devices, but changes to the topology can’t be saved. To change it, rebuild it in your own folder.

More FortiGate labs

All FortiGate labs

Related labs in other courses

CloudLabBox is independent of Fortinet. The lab follows exam topics and isn’t vendor training material; vendor names identify the exams and the images in the workspace.