Troubleshooting Tip: Unable to see the Fortigate interface under the interface zone member selection
| Description | This article describes how to solve an issue where the FortiGate interface cannot be seen under the interface zone member selection. |
| Scope | FortiOS v6 and above. |
| Solution | The example used in this article will demonstrate an attempt to add the interface 'port2' in the interface zone. When adding the port2 interface to the zone in the figure below, it cannot be seen:
   To solve the issue, navigate to Network -> Interfaces.
As a general rule, it will not be possible to add the port2 interface in an 'interface zone' if it has been attached to any existing policies, DHCP services, or similar items. Ensure port2 does not have any references. Currently, the port2 interface has one reference, as seen in the image below:
  
Note: Because the intention is to delete the port2 references from all policies and services, ensure doing so will not affect current services in the organization setup. It is always advised to establish an interface in the zone during initial network setup to prevent such problems in the future.
References can also be viewed from the CLI:
diagnose sys cmdb refcnt show system.interface.name port2
Once the reference is removed, the interface will be visible in zone configuration:   
Port2 is now visible in zone configuration:
If the issue persists, contact Fortinet Support for more assistance.
Related article: |
