Technical Tip: Allowing FSSO Ports when using Windows Server 2008 and higher

[kshathish]

Description

This article describes how to allow FSSO ports when using Windows Server 2008 and later versions. A new feature was implemented in Windows Server 2008 called 'Windows Firewall with Advanced Security'. This feature can sometimes block the FSSO ports from passing the traffic to the FortiGate.

Scope

FortiGate.

Solution

TCP port 8000 and UDP 8002 should be allowed either via the GUI or by command line.

1. Using the GUI:
   Go to Start Menu -> Control Panel -> Administrative Tools -> Windows Firewall with Advanced Security.
   
   
2. Using the command line:
   
   

For Inbound Traffic:

C:\>netsh advfirewall firewall add rule name="FSSO_TCP_8000" dir=in action=allow protocol=TCP localport=8000

C:\>netsh advfirewall firewall add rule name="FSSO_UDP_8002" dir=in action=allow protocol=UDP localport=8002

For Outbound Traffic:

C:\>netsh advfirewall firewall add rule name="FSSO_TCP_8000" dir=out action=allow protocol=TCP localport=8000

C:\>netsh advfirewall firewall add rule name="FSSO_UDP_8002" dir=out action=allow protocol=UDP localport=8002

After having added the ports, either via GUI or by command line, the following entries should be seen:

Note: If these ports are changed in the GUI of Collector Agent(s) default port for FSSO - TCP 8000 needs to be changed in the CLI in FortiOS. Reflect these changes in the Windows firewall too.

CLI commands to change the default TCP 8000 in FortiOS are as follows:

config user fsso

    edit fsso_server
        set port            <-- Enter an integer value from <1> to <65535> (default = <8000>).
end

To check the FSSO connection status from the FortiGate CLI, enable the following debug processes: 

diagnose debug enable

diagnose debug authd fsso server-status