dynamic vlan assignment fortigate

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WIFI Dynamic user VLAN assignment

Dynamic user VLAN assignment

Clients connecting to the WiFi network can be assigned to a VLAN. You can do this with RADIUS attributes when the user authenticates or with VLAN pooling when the client associates with a particular FortiAP. You cannot use both of these methods at the same time.

VLAN assignment by RADIUS

You can assign each individual user to a VLAN based on information stored in the RADIUS authentication server. If the user’s RADIUS record does not specify a VLAN ID, the user is assigned to the default VLAN for the SSID.

The RADIUS user attributes used for the VLAN ID assignment are:

IETF 64 (Tunnel Type)—Set this to VLAN.

IETF 65 (Tunnel Medium Type)—Set this to 802

IETF 81 (Tunnel Private Group ID)—Set this to the VLAN ID. To configure dynamic VLAN assignment, you need to:

Configure access to the RADIUS server.
Create the SSID and enable dynamic VLAN assignment.
Create a FortiAP Profile and add the local bridge mode SSID to it.
Create the VLAN interfaces and their DHCP servers.
Create security policies to allow communication from the VLAN interfaces to the Internet.
Authorize the FortiAP unit and assign the FortiAP Profile to it.

To configure access to the RADIUS server

Go to User & Device > RADIUS Servers and select Create New .
Enter a Name , the name or IP address in Primary Server IP/Name , and the server secret in Primary Server Secret .
Select OK .

To create the dynamic VLAN SSID

Go to WiFi & Switch Controller > SSID , select Create New > SSID and enter:

	An identifier, such as dynamic_vlan_ssid.
	Local bridge or Tunnel, as needed.
	An identifier, such as DYNSSID.
	WPA2 Enterprise
	RADIUS Server. Select the RADIUS server that you configured.

Enable dynamic VLAN in the CLI. Optionally, you can also assign a VLAN ID to set the default VLAN for users without a VLAN assignment.

config wireless-controller vap edit dynamic_vlan_ssid set dynamic-vlan enable set vlanid 10

To create the FortiAP profile for the dynamic VLAN SSID

Go to WiFi & Switch Controller > FortiAP Profiles , select Create New and enter:

	A name for the profile, such as dyn_vlan_profile.
	The FortiAP model you are using. If you use more than one model of FortiAP, you will need a FortiAP Profile for each model.

	Select the SSID you created (example dynamic_vlan_ssid). Do not add other SSIDs.

Adjust other radio settings as needed.

To create the VLAN interfaces

Go to Network > Interfaces and select Create New > Interface .

	A name for the VLAN interface, such as VLAN100.
	The physical interface associated with the VLAN interface.
	The numeric VLAN ID, for example 100.
	Select Manual and enter the IP address / Network Mask for the virtual interface.
	Enable and then select Create New to create an address range.

Repeat the preceding steps to create other VLANs as needed.

Security policies determine which VLANs can communicate with which other interfaces. These are the simple Firewall Address policy without authentication. Users are assigned to the appropriate VLAN when they authenticate.

To connect and authorize the FortiAP unit

Connect the FortiAP unit to the FortiGate unit.
Go to WiFi & Switch Controller > Managed FortiAPs .
When the FortiAP unit is listed, double-click the entry to edit it.
In FortiAP Profile , select the FortiAP Profile that you created.
Select Authorize .

VLAN assignment by VLAN pool

In an SSID, you can define a VLAN pool. As clients associate to an AP, they are assigned to a VLAN. A VLAN pool can

l assign a specific VLAN based on the AP’s FortiAP Group, usually for network configuration reasons, or l assign one of several available VLANs for network load balancing purposes (tunnel mode SSIDs only)

To assign a VLAN by FortiAP Group – CLI

In this example, VLAN 101, 102, or 103 is assigned depending on the AP’s FortiAP Group.

config wireless-controller vap edit wlan set vlan-pooling wtp-group config vlan-pool edit 101 set wtp-group wtpgrp1

next edit 102 set wtp-group wtpgrp2

next edit 101 set wtp-group wtpgrp3

Configuring user authentication

Load balancing

There are two VLAN pooling methods used for load balancing: The choice of VLAN can be based on any one of the following criteria:

l round-robin – from the VLAN pool, choose the VLAN with the smallest number of clients l hash – choose a VLAN from the VLAN pool based on a hash of the current number of SSID clients and the number of entries in the VLAN pool

If the VLAN pool contains no valid VLAN ID, the SSID’s static VLAN ID setting is used.

To assign a VLAN by round-robin selection – CLI

In this example, VLAN 101, 102, or 103 is assigned using the round-robin method:

config wireless-controller vap edit wlan set vlan-pooling round-robin config vlan-pool edit 101 next edit 102 next edit 103 end

To assign a VLAN by hash-based selection – CLI

In this example, VLAN 101, 102, or 103 is assigned using the hash method:

config wireless-controller vap edit wlan set vlan-pooling hash config vlan-pool edit 101 next edit 102 next edit 103 end

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Fortigate – Dynamic VLAN (tunnel mode)

In this example we will create a wireless VAP in tunnel mode with dynamic VLAN assignment via radius server based on group membership.

First we create a new SSID, traffic mode is “Tunnel to wireless controller”, an IP address doesn’t need to be configured here unless some users/groups won’t be assigned a VLAN.

Next we turn on dynamic vlan via cli:

Now we create a new VLAN (or several depending on the number of required groups), at the time of this writing it is not possible to associate a VLAN with a VAP interface in the GUI so this must be done via CLI:

Edit the newly created VLAN in the GUI to enable the DHCP server:

Now we’re ready to test dynamic VLAN assignment with a wireless client.

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Dynamic VLAN assignment for VPN users

Goal: Users will receive a predefined VLAN access/IP when connecting to fortigate's VPN. The VLAN should be defined as a radius/ldap attribute of the user.

Architecture: We have a fortigate connected to a radius server to authenticate users. (FortiGate -> Freeradius -> OpenLDAP)

We can successfully authenticate users against our radius users using SSL VPN. I have seen multiple guides on how to dynamically assign VLAN for users using 802.1x but I could not find any resource how to achieve it over VPN.

Can this be done? If so, how?

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Re: Why is the same IP address assigned for VLAN S...
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COMMENTS

Dynamic VLAN assignment for SSID clients ...
Make sure to enable dynamic VLAN assignment. GUI: Navigate to WiFi & Switch Controller -> SSIDs -> Create New. CLI: config wireless-controller vap. ... Because the tunnel mode SSID creates a layer 3 virtual interface on the FortiGate and thus VLANs would be matched that are bound to that SSID interface. When SSID is in bridge mode.
FortiGate WiFi WPA2-Enterprise dynamic VLANs assignment
The FortiGate as wireless controller can be set up to manage FortiAPs and to do WPA enterprise authentication. Allow user access to a single Wi-Fi more granular though can be done with Dynamic VLAN Assignments. Dynamic VLAN assignment is available for both tunnel and bridge mode. Tunnel mode as traffic will be centrally managed by the FortiGate ...
How to Dynamic Vlan Assignment
Dynamic VLAN provison for wifi user... 376 Views; Port-Based 802.1x Security Policy and IP... 1180 Views; 802.1x dynamic vlan assignment in fortilink 406 Views; Allowing Inter-Vlan Communication 842 Views
Dynamic VLAN name assignment from RADIUS attribute
To configure dynamic VLAN name assignment: Configure a RADIUS server: Set Tunnel-Type to "VLAN". Set Tunnel-Medium-Type to "IEEE-802". Set Tunnel-Private-Group-Id to "my.vlan.10". Designate the VLAN name instead of VLAN ID. Configure the FortiGate: config system interface. edit "my.vlan.10".
Configuring dynamic user VLAN assignment
One VLAN ID per user. See Reserved VLAN IDs. To configure dynamic VLAN assignment, you need to: Configure access to the RADIUS server. Create the SSID and enable dynamic VLAN assignment. Create a FortiAP Profile and add the local bridge mode SSID to it. Create the VLAN interfaces and their DHCP servers.
Assigning WiFi users to VLANs dynamically
Web Application / API Protection. FortiWeb / FortiWeb Cloud; FortiADC / FortiGSLB; SAAS Security
WIFI Dynamic user VLAN assignment
To configure dynamic VLAN assignment, you need to: Configure access to the RADIUS server. Create the SSID and enable dynamic VLAN assignment. Create a FortiAP Profile and add the local bridge mode SSID to it. Create the VLAN interfaces and their DHCP servers. Create security policies to allow communication from the VLAN interfaces to the Internet.
VLANs
The FortiGate internal interface connects to the VLAN switch through an 802.1Q trunk. The internal interface has an IP address of 192.168.110.126 and is configured with two VLAN subinterfaces (VLAN_100 and VLAN_200). The external interface has an IP address of 172.16.21.2 and connects to the Internet.
MAB Dynamic VLAN assignment with FortiGate, FortiSwitch and
This video will be helpful to understand and configure basic MAC-based authentication with Dynamic VLAN assignment only to devices that have successfully bee...
Assigning a VLAN via NAC policies control...
This article describes how to perform configuration on FortiGate to assign a VLAN via NAC policies based on ZTNA tags synchronized from FortiClient EMS. Scope: ... The example below is using ZTNA tag from EMS, and Dynamic Address created by NAC Policy for source address: 5) Configure onboarding VLAN under 'WiFi & Switch Controller/NAC Policies ...
Fortigate
Fortigate - Dynamic VLAN (tunnel mode) In this example we will create a wireless VAP in tunnel mode with dynamic VLAN assignment via radius server based on group membership. First we create a new SSID, traffic mode is "Tunnel to wireless controller", an IP address doesn't need to be configured here unless some users/groups won't be ...
How to Dynamic Vlan Assignment : r/fortinet
Dynamic port assignment is for non-user ports; think access points, cameras, iot devices. Use NAC for your user ports; think desktop, laptops, kiosk. I think you can do both. Dynamic port policy is to my knowledge the old way. NAC is the new way and the way I will recommend you go. Hey guys, I'm trying to "Dynamic Vlan Assingment" on the ...
Dynamic VLAN assignment without radius : r/fortinet
Dynamic VLAN assignment without radius. Hi Fortinet Experts, We are working on phasing out our local onsite infrastructure and are going to full cloud, which means our domain controllers and radius will be phased out. Currently, we have our wireless network setup using 802.1x and radius. Because we are phasing out radius we need a new solution ...
Troubleshooting Tip: Dynamic VLAN assignment featu ...
FortiGate, SSID. By default, the Dynamic VLAN assignment is disabled. This feature is useful when users need to change the VLAN automatically after changing the connected AP. By default, it is disabled. However, it can be enabled connect to the RADIUS server to authenticate the user continually while the user is moving across different APs.
Dynamic VLAN assignment for VPN users : r/fortinet
Dynamic VLAN assignment for VPN users. Users will receive a predefined VLAN access/IP when connecting to fortigate's VPN. The VLAN should be defined as a radius/ldap attribute of the user. We have a fortigate connected to a radius server to authenticate users. We can successfully authenticate users against our radius users using SSL VPN.
Dynamic VLAN assignment
7.4.0. Dynamic VLAN assignment. Dynamic VLAN assignment. You can configure the RADIUS server to return a VLAN in the authentication reply message: On the FortiSwitch unit, select port-based authentication or MAC-based authentication and a security group. On the RADIUS server, configure the attributes.
802.1x dynamic vlan assignment in fortilink
FGT/FSW in FortiLink mode can be configured for dynamic VLAN assignment via RADIUS. You have to create an apply a Security Policy at the switch port level, like shown below: Just keep in mind that even though the RADIUS configuration are done through FGT the RADIUS requests are originated from the FSW. Make sure the switch can reach the RADIUS ...
Why is the same IP address assigned for VLAN ...
Yes, assigning an IP to the interface will make it work as a routed interface, no extra steps required. Remember that FGT is a firewall and you need to add firewall policies (usually for each interface) to allow traffic. FGT supports both the sub interface and L2 VLAN (HW/SW switch) approach. As p...