Yearly Archives: 2017

FSSO – Fortinet Single Sign-On

FSSO – Fortinet Single Sign-On

Fortinet Single Sign-On (FSSO), formerly known as FortiGate Server Authentication Extension (FSAE), is the authentication protocol by which users can transparently authenticate to FortiGate, FortiAuthenticator, and FortiCache devices. The FortiAuthenticator unit identifies users based on their authentication from a different system, and can be authenticated via numerous methods:

  • Users can authenticate through a web portal and a set of embeddable widgets. l Users with FortiClient Endpoint Security installed can be automatically authenticated through the FortiClient SSO Mobility Agent.
  • Users authenticating against Active Directory can be automatically authenticated. l RADIUS Accounting packets can be used to trigger an FSSO authentication. l Users can be identified through the FortiAuthenticator API. This is useful for integration with third-party systems.

Below are the TCP/UDP ports used by the multiple FSSO modes:

Purpose Protocol/Port
LDAP group membership lookup (Global Catalog) TCP/3268
LDAP domain controller discovery and group membership lookup TCP/389
DC Agent keepalive and push logon info to CA UDP/8002
CA keepalive and push logon info to Fortigate TCP/8000
NTLM TCP/8000
CA DNS UDP/53
Workstation check, polling mode (preferred method) TCP/445
Workstation check, polling mode (fallback method) TCP/135, TCP/139, UDP/137
Remote access to logon events TCP/445
Group lookup using LDAP TCP/389
Group lookup using LDAP with global catalog TCP/3268
Group lookup using LDAPS TCP/636
Resolve FSSO server name UDP/53

FSSO – Fortinet Single Sign-On

Configuring the FortiAuthenticator

The FortiAuthenticator unit can be integrated with external network authentication systems, such as RADIUS, LDAP, Windows AD, and FortiClients to poll user logon information and send it to the FortiGate unit.

To configure FortiAuthenticator polling:

  1. Go to Fortinet SSO Methods > SSO > General.
  2. In the FortiGate section, leave Listening port set to 8000, unless your network requires you to change this. The FortiGate unit must allow traffic on this port to pass through the firewall. Optionally, you can set the Login expiry time (default is 480 minutes, or eight hours). This is the length of time users can remain logged in before the system logs them off automatically.
  3. Select Enable authentication and enter the Secret key. Be sure to use the same secret key when configuring the FSSO Agent on FortiGate units.
  4. In the Fortinet Single Sign-On (FSSO) section, enter the following information:
Enable Windows event log polling (e.g. domain controllers/Exchange

servers)

Select for integration with Windows Active Directory
Enable RADIUS

Accounting SSO clients

Select if you want to use a Remote RADIUS server.
Enable Syslog SSO Select for integration with Syslog server.
Enable FortiClient SSO Mobility Agent Service Once enabled, also select Enable authentication to enable SSO by clients running FortiClient Endpoint Security.

Enter the Secret key. Be sure to use the same secret key in the FortiClient Single Sign-On Mobility Agent settings.

  1. Select OK.

For more detailed information for each available setting, see the FortiAuthenticator Administration Guide.

Configuring the FortiGate

The FortiAuthenticator unit needs to be added to the FortiGate as an SSO agent that will provide user logon information.

To add a FortiAuthenticator unit as SSO agent:

  1. Go to User & Device > Single Sign-On and select Create New.
  2. Set Type to Fortinet Single-Sign-On Agent, and enter a Name.
  3. In Primary Agent IP/Name, enter the IP address of the FortiAuthenticator unit or a name.
  4. In Password, enter the same secret key defined earlier on the FortiAuthenticator (under Fortinet SSO Methods > SSO > General).

 

FSSO – Fortinet Single Sign-On

  1. You may also specify Users/Groups from the dropdown menu.
  2. Select OK.

In a few minutes, the FortiGate unit receives a list of user groups from the FortiAuthenticator unit. When you open the server, you can see the list of groups. You can use the groups in identity-based security policies.

FSSO user groups

You can only use FortiAuthenticator SSO user groups directly in identity-based security policies. You must create an FSSO user group, then add FortiAuthenticator SSO user groups to it. These FortiGate FSSO user groups will then become available for selection in identity-based security policies.

To create an FSSO user group:

  1. Go to User & Device > User Groups and select Create New.
  2. Enter a Name for the group.
  3. Set Type to Fortinet Single Sign-On (FSSO).
  4. Add Members. The groups available to add as members are SSO groups provided by SSO agents.
  5. Select OK.

Configuring the FortiClient SSO Mobility Agent

In order for the user to successfully set up the SSO Mobility Agent in FortiClient, they must know the FortiAuthenticator IP address and pre-shared key/secret.

To configure FortiClient SSO Mobility Agent:

  1. In FortiClient, go to File > Settings.
  2. Under Advanced, select Enable Single Sign-On mobility agent.
  3. In Server address, enter the IP address of the FortiAuthenticator.
  4. In Customize port, enter the listening port number specified on the FortiAuthenticator unit. You can omit the port number if it is 8005.
  5. Enter the Pre-shared key.
  6. Select OK.

For more detailed FSSO configurations, including with Windows AD, Citrix, Novell eDirectory, and more, see the Authentication guide.

CLI Syntax

The following section contains commands to control FSSO.

user/fsso

The following command will set the server address, port, and password for multiple FSSO agents.

config user fsso edit <name_str> set name <string> set [server | server2 | server3 | server4 | server5] <string> set [port | port2 | port3 | port4 | port5] <integer>

set [password | password2 | password3 | password4 | password5] <password> end

FSSO – Fortinet Single Sign-On

user/fsso-polling

The following command will set the Active Directory server port.

config user fsso-polling edit <name_str> set port <integer> end

FortiOS WAN optimization

FortiOS WAN optimization

Multi-location organizations or businesses using the cloud can provide license-free WAN optimization using FortiOS.

WAN Optimization is a comprehensive solution that maximizes your WAN performance and provides intelligent bandwith management and unmatched consolidated security performance. WAN optimization reduces your network overhead and removes unneccessary traffic for a better overall performance experience. Efficient use of bandwidth and better application performance will remove the need for costly WAN link upgrades between data centers and other expensive solutions for your network traffic growth.

WAN optimization is available on FortiGate models with internal storage that also support SSL acceleration. Internal storage includes high-capacity internal hard disks, AMC hard disk modules, FortiGate Storage Modules (FSMs) or over 4 GB of internal flash storage.

WAN optimization tunnels use port 7810.

The following features below are available through WAN optimization:

Protocol optimization

Protocol optimization is effective for applications designed for the LAN that do not function well on low bandwidth, high latency networks. FortiOS protocol optimization improves the efficiency of CIFS, FTP, HTTP, MAPI, and general TCP sessions.

CIFC, for example, requires many background transactions to successfully transfer a single file. When transferring the file, CIFS sends small chunks of data and waits sequentially for each chunk’s arrival and acknowledgment before sending the next chunk. This large amount of requests and acknowledgements of traffic can delay transfers. WAN Optimization removes this complexity and improves the efficiency of transferring the file.

TCP protocol optimization uses techniques such as SACK support, window scaling and window size adjustment, and connection pooling to remove common WAN TCP bottlenecks.

FortiOS WAN optimization

Byte caching

Byte caching improves caching by accelerating the transfer of similar, but not identical content. Byte caching reduces the amount of data crossing the WAN when multiple different emails with the same or similar attachments or different versions of an attachment are downloaded from a corporate email server to different locations over the WAN.

Byte caching breaks large units of application data, such as email attachments or file downloads, into smaller chunks of data. Each chunk of data is labeled with a hash, and chunks with their respective hashes are stored in a database on the local FortiGate unit. When a remote user requests a file, WAN optimization sends the hashes, rather than the actual data. The FortiGate unit at the other end of the WAN tunnel reassembles the data from its own hash database, only downloading the chunks it is missing. Deduplication, or the process of eliminating duplicate data, will reduce space consumption.

Byte caching is not application specific, and assists by accelerating all protocols supported by WAN optimization.

Web caching

WAN optimization reduces download times of content from central files repositories through web caching. FortiOS Web caching stores remote files and web pages on local FortiGate devices for easy local access to commonly accessed files. There is little impact on the WAN, resulting in reduced latency for those requesting the files.

In addition, web caching also recognizes requests for Windows or MS Office updates, and downloads the new update file in the background. Once downloaded to the cache, the new update file is available to all users, and all subsequent requests for this update are rapidly downloaded from the cache.

FortiOS WAN optimization

Traffic shaping

Controls data flow for specific applications, giving administrators the flexibility to choose which applications take precedence over the WAN. A common use case of traffic shaping would be to prevent one protocol or application from flooding a link over other protocols deemed more important by the administrator.

SSL acceleration

SSL is used by many organizations to keep WAN communications private. WAN Optimization boosts SSL acceleration properties of FortiGate FortiASIC hardware by accelerating SSL traffic across the WAN. The FortiGate unit handles SSL encryption/decryption for corporate servers providing SSL encrypted connections over the WAN.

Explicit web proxy server

Allows users on the internal network to browse the Internet through the explicit web proxy server.

Explicit FTP proxy server

Allows users on the internal network to access FTP servers through the explicit FTP proxy server.

Reverse proxy

The web and FTP proxies can be configured to protect access to web or FTP servers that are behind the FortiGate using a reverse proxy configuration. Reverse proxies retrieve resources on behalf of a client from one or more servers. These resources are then returned to the client as if they originated from the proxy server.

WCCP

The Web Cache Communication Protocol (WCCP) allows you to offload web caching to redundant web caching servers. This traffic redirection helps to improve response time and optimize network resource usage.

WAN optimization and HA

You can configure WAN optimization on a FortiGate HA cluster. The recommended HA configuration for WAN optimization is active-passive mode. Also, when the cluster is operating, all WAN optimization sessions are processed by the primary unit only. Even if the cluster is operating in active-active mode, HA does not loadbalance WAN optimization sessions. HA also does not support WAN optimization session failover.

Configuring an explicit proxy with WAN optimization web caching

For this configuration, all devices on the wireless network will be required to connect to the proxy at port 8080 before they can browse the Internet. WAN Optimization web caching is added to reduce the amount of Internet bandwidth used and improve web browsing performance.

Enabling WAN Optimization and configuring the explicit web proxy for the wireless interface

  1. Go to System > Config > Features. Ensure that Explicit Proxy and WAN Opt & Cache are enabled.
  2. Go to System > Network > Interfaces, edit the wireless interface and select Enable Explicit Web Proxy.

FortiOS WAN optimization

  1. Go to System > Network > Explicit Proxy. Select Enable Explicit Web Proxy for HTTP/HTTPS. Make sure that Default Firewall Policy Action is set to Deny.

Adding an explicit web proxy policy

  1. Go to Policy & Objects > Policy > Explicit Proxy and create a new policy.
  2. Set Explicit Proxy Type to Web and the Outgoing Interface to the Internet-facing interface.
  3. Enable Web Cache.

Configuring devices on the wireless network to use the web proxy

To use the web proxy, all devices on the wireless network must be configured to use the explicit proxy server. The IP address of the server is the IP address of the FortiGate’s wireless interface (for example, 10.10.80.1) and the port is 8080. Some browsers may have to be configured to use the device’s proxy settings.

For Windows Vista/7/8, open Internet Properties. Go to Connections > LAN Settings and enable and configure the Proxy Server.

For Mac OS X, open Network Preferences > Wi-Fi > Advanced > Proxies. Select Web Proxy (HTTP) and configure the proxy settings.

For iOS, go to Settings > Wi-Fi. Edit the wireless network. Scroll down to HTTP PROXY, select Manual, and configure the proxy settings.

For Android, in WiFi network connection settings, edit the wireless network. Select Show advanced options, configure a Manual proxy, and enter the proxy settings.

Force HTTP and HTTPS traffic to use the Web Proxy

Block HTTP and HTTPS access to the Internet from the wireless network so that the only path to the Internet is through the explicit proxy. You can edit or delete policies that allow HTTP or HTTPS access. You can also add a policy to the top of the list that Denies HTTP and HTTPS traffic.

FortiLink

FortiLink

FortiGate units can be used to remotely manage FortiSwitch units, which is also known as using a FortSwitch in FortiLink mode. FortiLink defines the management interface and the remote management protocol between the FortiGate and FortiSwitch.

Supported FortiSwitch models

The following table shows the FortiSwitch models that support FortiLink mode when paired with the corresponding FortiGate models and the listed minimum software releases.

FortiSwitch FortiGate Earliest FortiSwitchOS Earlist FortiOS
FS-224D-POE FGT-90D (Wifi/POE) 3.0.0 5.2.2
FS-108D-POE FGT-60D (all) 3.0.1 5.2.3
FSR-112D-POE FGR-90D 3.0.1 5.2.3
FS-124D FGT-90D + FGT-60D 3.0.1 5.2.3
FS-124D-POE FGT-90D + FGT-60D 3.0.1 5.2.3
FS-224D-FPOE FGT-90D + FGT-60D 3.0.1 5.2.3

Note that all FortiSwitches above also support FortiLink mode when paired with the following FortiGate models: 100D, 140D (POE, T1), 200D, 240D, 280D (POE), 600C, 800C, and 1000C.

FortiLink ports for each FortiSwitch model

Each FortiSwitch model provides one designated port for the FortiLink connection. The table below lists the FortiLink port for each model:

FortiSwitch model Port for FortiLink connection
FS-28C WAN port 1
FS-324B-POE Management Port
FS-448B (10G only) WAN port (uplink 1)

 

FortiSwitch model                                Port for FortiLink connection
FS-348B                                                 Last port (port 48)
For all D-series switches, use the last (highest number) port for FortiLink. For example:
FS-108D-POE                                         Last port (port 10)
FSR-112D-POE                                       Last port (port 12)
FS-124D                                                 Last port (port 26). May require an SFP module.*
FS-224D-POE                                         Last port (port 24)
FS-224D-FPOE                                       Last port (port 28). May require an SFP module.*

* FortiSwitch 3.3.1 and later releases support the use of an RJ-45 port for FortiLink. Please contact Fortinet Customer Service & Support for additional information.

FortiLink ports for each FortiGate model

The following table shows the ports for each model of FortiGate that can be FortiLink-dedicated.

FortiGate model Port for FortiLink connection
FGT-90D, FGT-90D-POE, FWF-90D, FWF-90D-POE port1 – port14
FGT-60D, FGT-60D-POE, FWF-60D, FWF-60D-POE port1 – port7
FGT-100D port1 – port16
FGT-140D , 140D-POE, 140D-POE-T1 port1 – port36
FGT-200D port1 – port16
FGT-240D port1 – port40
FGT-280D, FGT-280D-POE port1 – port84
FGT-600C port3 – port22
FGT-800C port3 – port24
FGT-1000C port3 – port14, port23, port24

FortiLink

Auto-discovery of the FortiSwitch ports

In releases FortiSwitchOS 3.3.0 and beyond, the D-series FortiSwitch models support FortiLink auto-discovery, which is automatic detection of the port connected to the FortiGate.

You can use any of the switch ports for FortiLink. Use the following FortiSwitch CLI commands to configure a port for FortiLink auto-discovery:

config switch interface edit <port> set auto-discovery-fortilink enable

end

Note that some FortiSwitch ports are enabled for auto-discovery by default.

Each FortiSwitch model provides a set of ports that are enabled for FortiLink auto-discovery by default. If you connect the FortiLink using one of these ports, no switch configuration is required.

In general (in FortiSwitchOS 3.4.0 and later releases), the last four ports are the default auto-discovery FortiLink ports. The table below lists the default auto-discovery ports for each switch model:

FortiSwitch model Default Auto-FortiLink ports
FS-108D ports 9 and 10
FSR-112D ports 9, 10, 11, and 12
FS-124D, FS-124D-POE ports 23, 24, 25, and 26
FS-224D-POE ports 21, 22, 23, and 24
FS-224D-FPOE ports 25, 26, 27, and 28
FS-248D-POE ports 49, 50, 51, and 52
FS-248D-FPOE ports 49, 50, 51, and 52
FS-424D, FS-424D-POE, FS-424D-FPOE ports 25 and 26
FS-448D, FS-448D-POE, FS-448D-FPOE ports 49, 50, 51, and 52
FS-524D, FS-524D-FPOE ports 25, 26, 27, 28, 29, and 30
FS-548D, FS-548D-FPOE ports 49, 50, 51, 52, 53, and 54
FS-1024D, FS-1048D, FS-3032D all ports

You can also run the show switch interface CLI command on the FortiSwitch to see the ports that have auto-discovery enabled.

Adding a Managed FortiSwitch to the FortiGate

The following steps show how to add a new managed FortiSwitch using the FortiGate GUI or the CLI.

Using the FortiGate GUI:

  1. Connect a cable from the designated FortiSwitch port to an unused port on the FortiGate. Refer to FortiLink ports for each FortiSwitch model for additional information.
  2. Go to Network > Interfaces and edit an internal port on the FortiGate.
  3. Set Addressing mode to Dedicated to FortiSwitch and select OK.
  4. As of FortiOS 5.4.0, the Managed FortiSwitch GUI option can only be accessed by enabling it through the CLI console.

Open the CLI console and enter the following command to make the switch controller available in the GUI, and to set the reserved subnetwork for the controller:

config system global set switch-controller enable

set switch-controller-reserved-network 169.254.254.0 255.255.255.0

end

  1. Go to WiFI & Switch Controller > Managed FortiSwitch. The new FortiSwitch should now be displayed in the table.
  2. Right-click on the FortiSwitch and select Authorize.

Using the FortiGate CLI:

Note that, for the example shown below, the FortiGate’s port1 is configured as the FortiLink port.

  1. If required, remove port1 from the lan interface:

config system virtual-switch edit lan config port delete port1

end

end

end

  1. Configure the interface for port1:

config system interface edit port1 set ip 172.20.120.10 255.255.255.0 set allowaccess capwap set vlanforward enable

end

end

  1. Configure an NTP server on port1:

config system ntp set server-mode enable set interface port1

end

  1. Authorize the FortiSwitch unit as a managed switch (note that that FortiSwitch will reboot once you issue the command below):

config switch-controller managed-switch

FortiLink

edit FS224D3W14000370 set fsw-wan1-admin enable

end

end

  1. Configure a DHCP server on port1:

config system dhcp server edit 0 set netmask 255.255.255.252 set interface port1 config ip-range edit 0 set start-ip 169.254.254.2 set end-ip 169.254.254.50

end

set vci-match enable set vci-string FortiSwitch set ntp-service local

end

end

Set the FortiSwitch to Remote Management mode

Use the FortiSwitch GUI or the CLI to set the remote management mode.

Note that the following steps are not necessary for FortiSwitchOS releases 3.3.0 or later.

Using the FortiSwitch GUI:

  1. Go to System > Dashboard > Status and locate the System Information
  2. Beside Operation Mode, select Change.
  3. Change Management Mode to FortiGate Remote Management and select OK.
  4. A warning will appear asking if you wish to continue. Select OK.

Using the FortiSwitch CLI:

config system global set switch-mgmt-mode fortilink

end

Configuring the FortiSwitch Remote Management port

If the FortiSwitch model has a dedicated management port, you can configure remote management to the FortiSwitch. In FortiLink mode, the FortiGate is the default gateway, so you need to configure an explicit route for the FortiSwitch management port.

To do this, from the FortiSwitch CLI, enter the following command:

config router static edit 1 set device mgmt

set gateway <router_IP_address> set dst <router_subnet> <subnet_mask>

end end

Configuring FortiLink LAG

Starting with FortiOS 5.4.0 and FortiSwitchOS 3.3.0, you can configure the Fortilink as a Link Aggregation Group (LAG) to provide increased bandwidth between the FortiGate and FortiSwitch.

Connect any two ports on the FortiGate to two ports on the FortiSwitch. Make sure that you use the designated Fortilink port as one of the ports on the switch.

To configure the Fortilink as a LAG on the FortiGate, create a trunk (of type fortilink) with the two ports that you connected to the switch:

config system interface edit “fortilink” set vdom root

set allowaccess ping capwap http https set type fortilink set member port4 port5 set snmp-index 17 set lacp-mode static

next

end config system ntp set ntpsync enable set syncinterval 60 set server-mode enable set interface “fortilink”

end

There is no specific configuration required for the LAG on the switch.

 

FortiGuard

FortiGuard

FortiGuard services can be purchased and registered to your FortiGate unit. The FortiGate must be connected to the Internet in order to automatically connect to the FortiGuard Distribution Network (FDN) to validate the license and download FDN updates.

The FortiGuard subscription update services include:

  • AntiVirus (AV) l Intrusion Protection Service (IPS) l Application Control l Anti-Spam l Web Filtering
  • Web Application Firewall (WAF)

The FDN sends notice that a FortiGuard AntiVirus and IPS update is available on UDP/9443.

Enabling FDN updates and FortiGuard Services

In order to receive FortiGuard subscription updates, the unit needs to have access to the Internet and be able to connect to a DNS server in order to resolve the following URLs:

l update.fortiguard.net: For AV and IPS updates l service.fortiguard.net: For web filtering and anti-spam updates

  1. Go to System > FortiGuard. Under AntiVirus & IPS Updates, enable Scheduled Updates, and configure an update schedule.
  2. You can force the unit to connect to the AV/IPS server by selecting Update AV & IPS Definitions.
  3. You can view your subscription details above in the License Information
  4. Once the schedule has been enabled, select Apply.

To see if the service is viable, open the CLI console and enter the following commands below.

For Web Filtering:

diagnose debug rating

For Anti-Spam:

diag spamfilter fortishield servers

If only one or two IPs are displayed in the command outputs, it could be one of the following issues:

l No response from the DNS server: Either the DNS server is unreachable or there is a problem with the routing. Make sure that contact to the DNS server is available by resolving some URLs from the CLI, for example:

exec ping http://www.google.com exec ping service.fortiguard.net

You can also l Review update errors: Review update information from the last update, enable debug outputs and force the update:

diag test update info

FortiGuard

diag debug enable

diag debug application update 255 exec update-ase exec update-av exec update-ips

After troubleshooting, it is highly recommended to turn off debug mode:

diag debug disable diag debug application update 0

l FortiGuard Web filtering: Port blocking or packet inspection is occurring downstream. The default port used by the FortiGuard for the FortiGuard services is 53. The traffic will fail any DNS packet inspection that could be happening.

You can either change the port to 8888 from the GUI, or change the source port for management traffic with the following CLI command:

config system global set ip-src-port-range 1035-25000

end diag test application urlfilter 99 diag test application smtp 99

CLI Syntax

The following section contains commands to control FortiGuard.

system.autoupdate/push-update

The following command will set the FDN push update port.

config system.autoupdate push-update edit <name_str> set port <integer>

end

system.autoupdate/tunneling

The following command will set the proxy server port that the FortiGate will use to connect to the FortiGuard Distribution Network (FDN).

config system.autoupdate tunneling edit <name_str> set port <integer>

end

system/fortiguard

The following command will set the port by which scheduled FortiGuard service updates will be received.

config system fortiguard edit <name_str> set port [53 | 8888 | 80]

end

FortiGuard

webfilter/fortiguard

The following command will close ports used for HTTPS/HTTP override authentication and disable user overrides:

config webfilter fortiguard edit <name> set close-ports [enable | disable] end

FortiTelemetry/On-Net/FortiClient Endpoint Compliance

FortiTelemetry/On-Net/FortiClient Endpoint Compliance

FortiTelemetry (called FortiHeartBeat in FortiOS 5.4.0 and FortiClient Access in FortiOS 5.2) is an interface option that listens for connections from devices with FortiClient installed.

FortiTelemetry is the TCP/8013 protocol used between FortiClient and FortiGate, FortiClient and FortiClient EMS, and between FortiGate and other FortiGates in CSF configurations.

While all GUI references of FortiHeartBeat have been changed to FortiTelemetry in FortiOS 5.4.1, the CLI options have not been renamed and will remain as fortiheartbeat.

With FortiTelemetry enabled on the FortiGate, you can enforce FortiTelemetry for all FortiClients. This FortiClient endpoint compliance will require all clients to have FortiClient installed in order to get access through the FortiGate. Configure these settings in the internal interface under Network > Interfaces. Edit the interface of your choice. Under Restrict Access > Administrative Access, enable FortiTelemetry, then enable FortiClient On-Net Status.

CLI command – To enable FortiTelemetry on an interface:

config system interface edit <port_number> set listen-forticlient-connection enable set endpoint-compliance enable

end

You can also enable DHCP server and FortiClient On-Net Status to display the on-net status of FortiClient devices on the FortiClient Monitor (under Monitor > FortiClient Monitor).

CLI command – To enable FortiClient On-Net status for a DHCP server added to the port1 interface:

config system dhcp server edit 1 set interface port1

set forticlient-on-net-status enable

end

FortiClient Endpoint licence updates

FortiClient endpoint licenses for FortiOS 5.6.0 can be purchased in multiples of 100. There is a maximum client limit based on the FortiGate’s model. FortiCare enforces the maximum limits when the customer is applying the license to a model.

If you are using the ten free licenses for FortiClient, support is provided on the Fortinet Forum (forum.fortinet.com). Phone support is only available for paid licenses.

Model(s) Maximum Client Limit
VM00 200

FortiTelemetry/On-Net/FortiClient Endpoint Compliance

Model(s) Maximum Client Limit
FGT/FWF 30 to 90 series 200
FGT 100 to 400 series 600
FGT 500 to 900 series, VM01, VM02 2,000
FGT 1000 to 2900 series, VM04 50,000
FGT 3700D and above, VM08 and above 100,000

Older FortiClient SKUs will still be valid and can be applied to FortiOS 5.4 and 5.6.

Connecting FortiClient Telemetry after installation

After FortiClient is installed on an endpoint, FortiClient automatically launches and searches for a FortiGate or FortiClient EMS for FortiClient Telemetry connection. When FortiClient locates a FortiGate or EMS, the FortiGate Detected or Enterprise Management Server (EMS) Detected dialog box will appear:

If all the information displayed is correct, select Accept. FortiClient Telemetry will connect to the identified FortiGate/EMS.

Alternately, you can select Cancel and launch FortiClient without connecting to FortiClient Telemetry. This will launch FortiClient is standalone mode, where you can manually connect FortiClient Telemetry.

After FortiClient Telemetry is connected to FortiGate or EMS, FortiClient downloads a profile from FortiGate/EMS.

How FortiClient locates FortiGate/EMS

FortiClient uses the following methods in the following order to automatically locate FortiGate/EMS for Telemetry connection:

FortiTelemetry/On-Net/FortiClient Endpoint Compliance

  1. Telemetry gateway IP list: FortiClient Telemetry searches for IP addresses in its subnet in the Gateway IP list. It connects to the FortiGate in the list that is also in the same subnet as the host system.

If FortiClient cannot find any FortiGates in its subnet, it will attempt to connect to the first reachable FortiGate in the list, starting from the top. The order of the list is maintained as it was configured in the Gateway IP list.

  1. Remembered gateway IP list: You can configure FortiClient to remember gateway IP addresses when you connect Telemetry to FortiGate/EMS. Later FortiClient can use the remembered IP addresses to automatically connect Telemetry to FortiGate/EMS.
  2. Default gateway IP address: The default gateway IP address is specified on the FortiClient endpoint and is used to automatically connect to FortiGate. This method does not support connection to EMS.

FortiClient obtains the default gateway IP address from the operating system on the endpoint device. The default gateway IP address of the endpoint device should be the IP address for the FortiGate interface with Telemetry enabled.

If FortiClient is unable to automatically locate a FortiGate/EMS on the network for Telemetry connection, you can type the gateway IP address of the FortiGate/EMS.

 

CSF – Cooperative Security Fabric

CSF – Cooperative Security Fabric

Cooperative Security Fabric (CSF) – also known as a Fortinet Security Fabric – spans across an entire network linking different security sensors and tools together to collect, coordinate, and respond to malicious behavior in real time. CSF can be used to coordinate the behavior of different Fortinet products in your network, including FortiGate, FortiAnalyzer, FortiClient, FortiSandbox, FortiAP, FortiSwitch, and FortiClient Enterprise Management Server (EMS). CSF supports FortiOS 5.4.1+, FortiSwitchOS 3.3+, and FortiClient 5.4.1+.

Port TCP/8009 is the port FortiGate uses for incoming traffic from the FortiClient Portal, as user information (such as IP address, MAC address, avatar, and other profile information) is automatically synchronized to the FortiGate and EMS.

The brief example below assumes that FortiTelemetry has been enabled on the top-level FortiGate (FGT1), OSPF routing has been configured, and that policies have been created for all FortiGate units to access the

Internet.

For more details on how to configure a security fabric between FortiGate units, see Installing internal FortiGates and enabling a security fabric on the Fortinet Cookbook website.

CSF – Cooperative Security Fabric

Enabling CSF on the FortiGate:

  1. On the upstream FortiGate (FGT1), go to System > Cooperative Security Fabric and enable Cooperative Security Fabric (CSF).
  2. Enter a Group name and Group password for the fabric.
  3. On a downstream FortiGate (such as FGT2 or FGT3), configure the same fabric settings as were set on FGT1.
  4. Enable Connect to upstream FortiGate.

Be sure you do not enable this on the topmost-level FortiGate (in this example, FGT1).

  1. In FortiGate IP, enter the FGT1 interface that has FortiTelemetry The FortiTelemetry port (set to 8013) can be changed as required.

Once set up, you can view your network’s CSF configuration under FortiView through two topology dashboards.

  1. On top-level FortiGate, go to FortiView > Physical Topology. This dashboard shows a vizualization of all access layer devices in the fabric.
  2. Go to FortiView > Logical Topology to view information about the interfaces (logical or physical) that each device in the fabric is connected to.

Other CSF configurations for your network are available through the Fortinet Cookbook Cooperative Security Fabric page.

SLBC – Session-aware Load Balancing Cluster

SLBC – Session-aware Load Balancing Cluster

The Session-aware Load Balancing Cluster (SLBC) protocol is used for clusters consisting of FortiControllers that perform load balancing of both TCP and UDP sessions. As session-aware load balancers, FortiControllers, with FortiASIC DP processors, are capable of directing any TCP or UDP session to any worker installed in the same chassis. It also means that more complex networking features such as NAT, fragmented packets, complex UDP protocols and others such as Session Initiation Protocol (SIP), a communications protocol for signaling and controlling multimedia communication sessions, can be load balanced by the cluster.

Currently, only three FortiController models are available for SLBC: FortiController-5103B, FortiController-

5903C, and FortiController-5913C. Supported workers include the FortiGate-5001B, 5001C, 5101C, and 5001D.

FortiGate-7000 series products also support SLBC.

An SLBC with two FortiControllers can operate in active-passive mode or dual mode. In active-passive mode, if

the active FortiController fails, traffic is transferred to the backup FortiController. In dual mode both FortiControllers load balance traffic and twice as many network interfaces are available.

SLBC clusters consisting of more than one FortiController use the following types of communication between FortiControllers to operate normally:

  • Heartbeat: Allows the FortiControllers in the cluster to find each other and share status information. If a FortiController stops sending heartbeat packets it is considered down by other cluster members. By default heartbeat traffic uses VLAN 999.
  • Base control: Communication between FortiControllers on subnet 10.101.11.0/255.255.255.0 using VLAN 301.
  • Base management: Communication between FortiControllers on subnet 10.101.10.0/255.255.255.0 using VLAN 101. l Session synchronization: If one FortiController fails, session synchronization allows another to take its place and maintain active communication sessions. FortiController-5103B session sync traffic uses VLAN 2000.

FortiController-5903C and FortiController-5913C session sync traffic between the FortiControllers in slot 1 uses VLAN 1900 and between the FortiControllers in slot 2 uses VLAN 1901. You cannot change these VLANs.

Note that SLBC does not support session synchronization between workers in the same chassis. The FortiControllers in a cluster keep track of the status of the workers in their chassis and load balance sessions to the workers. If a worker fails the FortiController detects the failure and stops load balancing sessions to that worker. The sessions that the worker is processing when it fails are lost.

Changing the heartbeat VLAN

To change the VLAN from the FortiController GUI, from the System Information dashboard widget, beside HA Status, select Configure. Change the VLAN to use for HA heartbeat traffic(1-4094) setting.

You can also change the heartbeat VLAN ID from the FortiController CLI. For example, to change the heartbeat VLAN ID to 333, enter the following:

config system ha set hbdev-vlan-id 333

end

Setting the mgmt interface as a heartbeat interface

To add the mgmt interface to the list of heartbeat interfaces used, on the FortiController-5103B, enter the following:

config system ha set hbdev b1 b2 mgmt end

This example adds the mgmt interface for heartbeats to the B1 and B2 interfaces. The B1 and B2 ports are recommended because they are 10G ports and the Mgmt interface is a 100Mb interface.

Changing the heartbeat interface mode

By default, only the first heartbeat interface (usually B1) is used for heartbeat traffic. If this interface fails on any of the FortiControllers in a cluster, then the second heartbeat interface is used (B2).

To simultaneously use all heartbeat interfaces for heartbeat traffic, enter the following command:

config load-balance-setting set base-mgmt-interface-mode active-active end

Changing the base control subnet and VLAN

You can change the base control subnet and VLAN from the FortiController CLI. For example, to change the base control subnet to 10.122.11.0/255.255.255.0 and the VLAN ID to 320, enter the following:

config load-balance setting set base-ctrl-network 10.122.11.0 255.255.255.0 config base-ctrl-interfaces edit b1 set vlan-id 320

next edit b2 set vlan-id 320

end

Changing the base management subnet and VLAN

You can change the base management subnet from the FortiController GUI under Load Balance > Config and changing the Internal Management Network.

You can also change the base management subnet and VLAN ID from the FortiController CLI. For example, to change the base management subnet to 10.121.10.0/255.255.255.0 and the VLAN to 131, enter the following:

config load-balance setting set base-mgmt-internal-network 10.121.10.0 255.255.255.0 config base-mgt-interfaces edit b1 set vlan-id 131

next edit b2 set vlan-id 131

end

If required, you can use different VLAN IDs for the B1 and B2 interface.

Changing this VLAN only changes the VLAN used for base management traffic between chassis. Within a chassis the default VLAN is used.

Enabling and configuring the session sync interface

To enable session synchronization in a two chassis configuration, enter the following command:

config load-balance setting set session-sync enable

end

You will then need to select the interface to use for session sync traffic. The following example sets the FortiController-5103B session sync interface to F4: config system ha set session-sync-port f4

end

The FortiController-5903C and FortiController-5913C use b1 and b2 as the session sync interfaces so no configuration changes are required.

FGCP to SLBC migration

You can convert a FGCP virtual cluster (with VDOMs) to an SLBC cluster. The conversion involves replicating the VDOM, interface, and VLAN configuration of the FGCP cluster on the SLBC cluster primary worker, then backing up the configuration of each FGCP cluster VDOM. Each of the VDOM configuration files is manually edited to adjust interface names. These modified VDOM configuration files are then restored to the corresponding SLBC cluster primary worker VDOMs.

For this migration to work, the FGCP cluster and the SLBC workers must be running the same firmware version, the VDOMS are enabled on the FGCP cluster, and the SLBC workers have been registered and licensed. However, the FGCP cluster units do not have to be the same model as the SLBC cluster workers.

Only VDOM configurations are migrated. You have to manually configure primary worker management and global settings.

Conversion steps

  1. Add VDOM(s) to the SLBC primary worker with names that match those of the FGCP cluster.
  2. Map FGCP cluster interface names to SLBC primary worker interface names. For example, you can map the FGCP cluster port1 and port2 interfaces to the SLBC primary worker fctl/f1 and fctl/f2 interfaces. You can also map FGCP cluster interfaces to SLBC trunks, and include aggregate interfaces.
  3. Add interfaces to the SLBC primary worker VDOMs according to your mapping. This includes moving SLBC physical interfaces into the appropriate VDOMs, creating aggregate interfaces, and creating SLBC trunks if required.
  4. Add VLANs to the SLBC primary worker that match VLANs in the FGCP cluster. They should have the same names as the FGCP VLANs, be added to the corresponding SLBC VDOMs and interfaces, and have the same VLAN IDs.
  5. Add inter-VDOM links to the SLBC primary worker that match the FGCP cluster.
  6. Backup the configurations of each FGCP cluster VDOM, and SLBC primary worker VDOM.
  7. Use a text editor to replace the first four lines of each FGCP cluster VDOM configuration file with the first four lines of the corresponding SLBC primary worker VDOM configuration file. Here are example lines from an SLBC primary

worker VDOM configuration file:

#config-version=FG-5KB-5.02-FW-build670-150318:opmode=0:vdom=1:user=admin

#conf_file_ver=2306222306838080295

#buildno=0670

#global_vdom=0:vd_name=VDOM1

  1. With the text editor, edit each FGCP cluster VDOM configuration file and replace all FGCP cluster interface names with the corresponding SLBC worker interface names, according to the mapping you created in step 2.
  2. Set up a console connection to the SLBC primary worker to check for errors during the following steps.
  3. From the SLBC primary worker, restore each FGCP cluster VDOM configuration file to each corresponding SLBC primary worker VDOM.
  4. Check the following on the SLBC primary worker:
    • Make sure set type fctrl-trunk is enabled for SLBC trunk interfaces.
    • Enable the global and management VDOM features that you need, including SNMP, logging, connections to FortiManager, FortiAnalyzer, and so on.
    • If there is a FortiController in chassis slot 2, make sure the worker base2 interface status is up. l Remove snmp-index entries for each interface.
    • Since you can manage the workers from the FortiController you can remove management-related configurations using the worker mgmt1 and mgmt2 interfaces (Logging, SNMP, admin access, etc.) if you are not going to use these interfaces for management.

How to set up SLBC with one FortiController-5103B

This example describes the basics of setting up a Session-aware Load Balancing Cluster (SLBC) that consists of one FortiController-5103B, installed in chassis slot 1, and three FortiGate-5001C workers, installed in chassis slots 3, 4, and 5.

This SLBC configuration can have up to eight 10Gbit network connections.

Configuring the hardware

  1. Install a FortiGate-5000 series chassis and connect it to power. Install the FortiController in slot 1. Install the workers in slots 3, 4, and 5. Power on the chassis.
  2. Check the chassis, FortiController, and FortiGate LEDs to verify that all components are operating normally. (To check normal operation LED status see the FortiGate-5000 series documents available here.)
  3. Check the FortiSwitch-ATCA release notes and install the latest supported firmware on the FortiController and on the workers. Get FortiController firmware from the Fortinet Support site. Select the FortiSwitch-ATCA product.

Configuring the FortiController

To configure the FortiController, you will need to either connect to the FortiController GUI or CLI with the default IP address of http://192.168.1.99. Log in using the admin account (no password).

  1. Add a password for the admin account. Use the Administrators widget in the GUI, or enter the following CLI command:

config admin user edit admin set password <password>

end

  1. Change the FortiController mgmt interface IP address. Use the Management Port widget in the GUI, or enter the following CLI command:

config system interface edit mgmt set ip 172.20.120.151/24

end

  1. If you need to add a default route for the management IP address, enter the following command:

config route static edit route 1 set gateway 172.20.121.2

end

  1. To set the chassis type that you are using, enter the following CLI command:

config system global set chassic-type fortigate-5140

end

  1. Go to Load Balance > Config and add workers to the cluster by selecting Edit and moving the slots that contain workers to the Member The Config page shows the slots in which the cluster expects to find workers. Since the workers have not been configured yet, their status is Down.

Configure the External Management IP/Netmask. Once the workers are connected to the cluster, you can use

this IP address to manage and configure them.

  1. You can also enter the following CLI command to add slots 3, 4, and 5 to the cluster:

config load-balance setting config slots edit 3

next edit 4

next edit 5

end

end

  1. You can also enter the following command to configure the external management IP/Netmask and management access to the following address:

config load-balance setting set base-mgmt-external-ip 172.20.120.100 255.255.255.0 set base-mgmt-allowaccess https ssh ping

end

Adding the workers

Before you begin adding workers to the cluster, make sure you enter the execute factoryreset command in the CLI so the workers are set to factory default settings. If the workers are going to run FortiOS Carrier, add the FortiOS Carrier licence instead – this will reset the worker to factory default settings.

Also make sure to register and apply licenses to each worker, including FortiClient licensing, FortiCloud activation, and entering a license key if you purchased more than 10 Virtual Domains (VDOMs). You can also install any third-party certificates on the primary worker before forming the cluster. Once the cluster is formed, third-party certificates are synchronized to all of the workers. FortiToken licenses can be added at any time, which will also synchronize across all of the workers.

  1. Log in to each of the worker’s CLI and enter the following CLI command to set the worker to operate in FortiController mode:

config system elbc set mode fortincontroller

end

Once the command is entered, the worker restarts and joins the cluster.

  1. On the FortiController, go to Load Balance > Status. You will see the workers appear in their appropriate slots. The worker in the lowest slot number usually becomes the primary unit.

You can now manage the workers in the same way as you would manage a standalone FortiGate. You can connect to the worker GUI or CLI using the External Management IP. If you had configured the worker mgmt1 or mgmt2 interfaces you can also connect to one of these addresses to manage the cluster.

To operate the cluster, connect networks to the FortiController front panel interfaces and connect to a worker GUI or CLI to configure the workers to process the traffic they receive. When you connect to the External Management IP you connect to the primary worker. When you make configuration changes they are synchronized to all workers in the cluster.

Managing the devices in an SLBC with the External Management IP

The External Management IP address is used to manage all of the individual devices in a SLBC by adding a special port number. This special port number begins with the standard port number for the protocol you are using and is followed by two digits that identify the chassis number and slot number. The port number can be calculated

using the following formula:

service_port x 100 + (chassis_id – 1) x 20 + slot_id Where:

  • service_port is the normal port number for the management service (80 for HTTP, 443 for HTTPS and so on). l chassis_id is the chassis ID specified as part of the FortiController HA configuration and can be 1 or 2.
  • slot_id is the number of the chassis slot.

By default, chassis 1 is the primary chassis and chassis 2 is the backup chassis. However, the actual primary chassis is the one with the primary FortiController, which can be changed independently of the chassis number. Additionally, the chassis_id is defined by the chassis number, not whether the chassis contains the primary

FortiController.

Some examples:

  • HTTPS, chassis 1, slot 2: 443 x 100 + (1 – 1) x 20 + 2 = 44300 + 0 + 2 = 44302: browse to: https://172.20.120.100:44302
  • HTTP, chassis 2, slot 4: 80 x 100 + (2 – 1) x 20 + 4 = 8000 + 20 + 4 = 8024: browse to http://172.20.120.100/8024
  • HTTPS, chassis 1, slot 10: 443 x 100 + (1 – 1) x 20 + 10 = 44300 + 0 + 10 = 44310: browse to https://172.20.120.100/44310

Single chassis or chassis 1 special management port numbers

Slot number HTTP (80) HTTPS (443) Telnet (23) SSH (22) SNMP (161)
Slot 1 8001 44301              2301 2201 16101
Slot 2 8002 44302              2302 2202 16102
Slot 3 8003 44303              2303 2203 16103
Slot 4 8004 44304              2304 2204 16104
Slot 5 8005 44305              2305 2205 16105
Slot 6 8006 44306              2306 2206 16106
Slot 7 8007 44307              2307 2207 16107
Slot 8 8008 44308              2308 2208 16108
Slot 9 8009 44309              2309 2209 16109
Slot number HTTP (80) HTTPS (443) Telnet (23) SSH (22) SNMP (161)
Slot 10 8010 44310              2310 2210 16110
Slot 11 8011 44311              2311 2211 16111
Slot 12 8012 44312              2312 2212 16112
Slot 13 8013 44313              2313 2213 16113
Slot 14 8014 44314              2314 2214 16114

Chassis 2 special management port numbers

Slot number HTTP (80) HTTPS (443) Telnet (23) SSH (22) SNMP (161)
Slot 1 8021 44321              2321 2221 16121
Slot 2 8022 44322              2322 2222 16122
Slot 3 8023 44323              2323 2223 16123
Slot 4 8024 44324              2324 2224 16124
Slot 5 8025 44325              2325 2225 16125
Slot 6 8026 44326              2326 2226 16126
Slot 7 8027 44327              2327 2227 16127
Slot 8 8028 44328              2328 2228 16128
Slot 9 8029 44329              2329 2229 16129
Slot 10 8030 44330              2330 2230 16130
Slot 11 8031 44331              2331 2231 16131
Slot 12 8032 44332              2332 2232 16132
Slot 13 8033 44333              2333 2233 16133
Slot 14 8034 44334              2334 2234 16134

For more detailed information regarding FortiController SLBC configurations, see the FortiController SessionAware Load Balancing (SLBC) Guide.

 

FGFM – FortiGate to FortiManager protocol

FGFM – FortiGate to FortiManager protocol

The FortiGate to FortiManager (FGFM) protocol is designed for FortiGate and FortiManager deployment scenarios, especially where NAT is used. These scenarios include the FortiManager on public internet while the FortiGate unit is behind NAT, FortiGate unit is on public internet while FortiManager is behind NAT, or both FortiManager and FortiGate unit have routable IP addresses.

The FortiManager unit’s Device Manager uses FGFM to create new device groups, provision and add devices, and install policy packages and device settings.

Port 541 is the default port used for FortiManager traffic on the internal management network.

Adding a FortiGate to the FortiManager

Adding a FortiGate unit to a FortiManager requires configuration on both devices. This section describes the basics to configure management using a FortiManager device.

FortiGate configuration

Adding a FortiGate unit to FortiManager will ensure that the unit will be able to receive antivirus and IPS updates and allow remote management through the FortiManager system, or FortiCloud service. The FortiGate unit can be in either NAT or transparent mode. The FortiManager unit provides remote management of a FortiGate unit over TCP port 541.

You must first enable Central Management on the FortiGate so management updates to firmware and FortiGuard services are available:

  1. Go to System > Settings.
  2. Set Central Management to FortiManager.
  3. Enter the FortiManager’s IP/Domain Name in the field provided, and select Send Request.

You can also select Registration Password and enter a password to connect to the FortiManager.

To configure the previous steps in the CLI, enter the following:

config system central-management set fmg <ip_address>

end

To use the registration password, enter the following:

execute central-mgmt register-device <fmg-serial-no><fmg-registerpassword><fgtusrname><fgt-password>

Configuring an SSL connection

The default encryption automatically sets high and medium encryption algorithms. Algorithms used for High, Medium, and Low follow the openssl definitions below:

FGFM                   to FortiManager protocol

Encryption level Key strength Algorithms used
High Key lengths larger than 128 bits, and some cipher suites with 128-bit keys. DHE-RSA-AES256-SHA:AES256-SHA: EDH-RSA-

DES-CBC3-SHA: DES-CBC3-SHA:DES-CBC3-

MD5:DHE-RSA-AES128-SHA:AES128-SHA

Medium Key strengths of 128 bit encryption. RC4-SHA:RC4-MD5:RC4-MD
Low Key strengths of 64 or 56 bit encryption algorithms but excluding export cipher suites. EDH-RSA-DES-CDBC-SHA; DES-CBC-SHA; DESCBC-MD5

An SSL connection can be configured between the two devices and an encryption level selected. To configure the connection in the CLI, Enter the following:

config system central-management set status enable

set enc-algorithm (default | high | low) – default automatically sets high and medium encryption algorithms. end

FortiManager configuration

Use the Device Manager pane to add, configure, and manage devices.

You can add existing operational devices, unregistered devices, provision new devices, and add multiple devices at a time.

Adding an operating FortiGate HA cluster to the Device Manager pane is similar to adding a standalone device. Type the IP address of the master device. The FortiManager will handle the cluster as a single managed device.

To confirm that a device model or firmware version is supported by current firmware version running on FortiManager, enter the following CLI command: diagnose dvm supported-platforms list

See the FortiManager Administration Guide for full details on adding devices, under Device Manager.

FGFM is also used in ADOMs (Administrative Domains) set to Normal Mode. Normal Mode has Read/Write privileges, where the administrator is able to make changes to the ADOM and manage devices from the FortiManager. FortiGate units in the ADOM will query their own configuration every five seconds. If there has been a configuration change, the FortiGate unit will send a revision on the change to the FortiManager using the FGFM protocol.

To configure central management on the FortiGate unit, enter the following on the FortiGate:

config system central-management set mode backup set fortimanager-fds-override enable set fmg <FortiManager_IP_address> end

FGFM – FortiGate to FortiManager protocol

Replacing a FortiGate in a FortiManager configuration

FGFM can be used in order to re-establish a connection between a FortiGate unit and a FortiManager configuration. This is useful for if you need a FortiGate unit replaced following an RMA hardware replacement. This applies to a FortiGate running in HA as the primary units; it does not apply to subordinate units.

When the FortiGate unit is replaced, perform a Device Manager Connectivity check or Refresh on teh FortiManager to establish the FGFM management tunnel to the FortiGate. If it fails, to establish, you can force the tunnel by executing the following command on the FortiManager:

exec fgfm reclaim-dev-tunnel <device_name>

Debugging FGFM on FortiManager

  • To display diagnostic information for troubleshooting (Set the debug level of FGFM daemon. Enter a device name to only show messages related to that device): diag debug application fgfmsd <integer> <device_name>
  • To view installation session, object, and session lists:

diag fgfm install-session diag fgfm object-list diag fgfm session-list <device_ID> l To reclaim a management tunnel (device name is optional): execute fgfm reclaim-dev-tunnnel <device_name> l To view the link-local address assigned to the FortiManager: diag fmnetwork interface list

Debugging FGFM on FortiGate

  • To view information about the Central Management System configuration: get system central-management l To produce realtime debugging information: diag debug application fgfmd -1
  • To view the link-local address assigned to the FortiManager:

diag fmnetwork interface list