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How to un-assign or disable an interface

10/14/2021 1,087 People found this article helpful 126,548 Views

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    Description

    This article describes how to disable or unassign an interface.

    As per SonicWall UTM best practices with regard to interfaces (especially WAN), an interface without a link must be unassigned. Likewise, an interface with a link but without an IP address must be either assigned with an IP address or de-linked. 

    Resolution

     

    Resolution for SonicOS 6.5

    This release includes significant user interface changes and many new features that are different from the SonicOS 6.2 and earlier firmware. The below resolution is for customers using SonicOS 6.5 firmware.

    How to unassign the port

    Login to the SonicWall management GUI.

    1. Click Manage in the top navigation menu.
    2. Click on the Network | Interfaces
    3. Click on configure button alongside the interface you wish to unassign.
    4. Click on the drop-down under Zone and select Unassigned.
    5. Click on OK to save.

    If the interface is in the WAN zone, the following warning message will be displayed. 
    Image
    The default LAN interface (X0) cannot be unassigned. 

    How to Shutdown or disable the port

     Login to the SonicWall management GUI.

    1. Click Manage in the top navigation menu.
    2. Click on the Network | Interfaces
    3. Click on Enabled button alongside the interface you wish to Shutdown.
    4. To Confirm click on OK to shutdown the port.

    Image

    How to unassign an interface from the CLI, perform the following steps in the CLI:

    | config
    | interface  
    | no zone
    | exit

    Image

    How to shutdown an interface from the CLI, perform the following steps in the CLI:

    Image

     

    Resolution for SonicOS 6.2 and Below

    The below resolution is for customers using SonicOS 6.2 and earlier firmware. For firewalls that are generation 6 and newer we suggest to upgrade to the latest general release of SonicOS 6.5 firmware.

     

    How to unassign the port

    • Login to the SonicWall management GUI.
    • Navigate to the Network | Interfaces page.
    • Click on the configure button alongside the interface you wish to unassign.
    • Click on the drop-down under Zone and select Unassigned.
    • Click on OK to save.

    If the interface is in the WAN zone, the following warning message will be displayed. 
    Image
    The default LAN interface (X0) cannot be unassigned. 

    How to Shutdown or disable the port

     

    • Login to the SonicWall management GUI.
    • Navigate to the Network | Interfaces page.
    • Click on the Enable button to shutdown the portTo Confirm click on OK to shutdown the port.

    Image

    To unassign an interface from the CLI, perform the following steps in the CLI:

     

    | config
    | interface  
    | no zone
    | exit

    Image

    To shutdown an interface from the CLI, perform the following steps in the CLI:

    Image

    Related Articles

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    • Unable to access the junk summary URL using TCP port 10080
    • ICMP Redirect force to change the routing table

    Categories

    • Firewalls > SonicWall NSA Series > Networking
    • Firewalls > SonicWall SuperMassive 9000 Series
    • Firewalls > SonicWall SuperMassive E10000 Series
    • Firewalls > TZ Series > Networking

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