Troubleshooting Tip: Unable to delete a tunnel interface
| Description | This article describes how to delete a tunnel interface in FortiManager when the 'delete' button is disabled. |
| Scope | FortiManager. |
| Solution | When trying to delete these three tunnel interfaces in Device Manager in FortiManager, the 'delete' button is greyed out.
To delete the tunnel interface, the per-device mapping in Normalized Interface settings must be deleted for each tunnel:
The same interface will need to be deleted in the IPsec configuration in the device DB:
However, these three interfaces in IPsec Phase 1 cannot be deleted because it is still being used in IPsec Phase 2:
Delete the following entry in IPsec Phase 2, as it is currently using the three interfaces in IPsec Phase 1:
Go back to the IPsec Phase 1 tab in (4) and delete the three interfaces. The tunnel interfaces in picture (1) will be deleted automatically. This can be verified with 'Tunnel (4)' in the figure below, as compared with 'Tunnel (7)' in Figure 1.
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