Remove the Network Module

If you want to permanently remove the network module, follow these steps. Removing a network module requires a reboot.

For clustering or High Availability, you can only perform chassis operations on the control node/active unit.

Before you begin

For clustering or High Availability, make sure the cluster/failover link is not on the network module.

Procedure


Step 1

From Devices > Device Management, click Manage in the Chassis column. For clustering or High Availability, this option is only available for the control node/active unit; network module changes are replicated to all nodes.

Manage Chassis
Manage Chassis

The Chassis Operations page opens for the device. This page shows physical interface details for the device.

Step 2

On the interfaces graphic, click the slider (slider enabled) to disable the network module.

Disable the Network Module
Disable the Network Module

Step 3

You are prompted to confirm that you want to turn the network module off. Click Yes.

Confirm Disable
Confirm Disable

Step 4

You see a message at the top of the screen; click the link to go to the Interfaces page to save the interface changes.

Go to Interface Page
Go to Interface Page

Step 5

At the top of the Interfaces page, you see a message that the interface configuration has changed.

View Interface Changes
View Interface Changes
  1. Click Click to know more to open the Interface Changes dialog box to view the changes.

    Interface Changes
    Interface Changes
  2. Click Validate Changes to make sure your policy will still work with the interface changes.

    If there are any errors, you need to change your policy and rerun the validation.

    Deleting an interface that is used in your security policy can impact the configuration. Interfaces can be referenced directly in many places in the configuration, including access rules, NAT, SSL, identity rules, VPN, DHCP server, and so on. Deleting an interface will delete any configuration associated with that interface. Policies that refer to security zones are not affected.

  3. Click Close to return to the Interfaces page.

Step 6

Click Save to save the interface changes to the firewall.

Step 7

If you had to change any configuration, go to Deploy > Deployment and deploy the policy.

Step 8

Reboot the firewall; see Shut Down or Restart the Device.

For clustering or High Availability, reboot the data nodes/standby unit first, and wait for them to come back up. Then you can change the control node or active unit (see Switch the Active Peer in the Threat Defense High Availability Pair), and reboot the former control node/active unit.