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Associate / Dissociate Subnet

Associate a subnet with a Firewall to bring it under firewall protection, or dissociate it to remove protection.

Open Associate Subnet​

On the Firewall Management screen, click ⋮ → Associate subnet on the Firewall row. This option is only available when Status = Integrated or Protected.

Associate Subnet screen

The screen lists all subnets from all VPCs integrated with this Firewall. Filter by Status (Not Protected / Protected) or VPC, or search by subnet name or CIDR.

Associate a subnet​

  1. Select a subnet with Status = Not Protected (radio button).
  2. Click Associate.
  3. Confirm in the popup — it warns that traffic will be denied by default until rules are configured.

The system shows "Associating subnet. This may take a few minutes." and sets Last Action State = In Progress.

Dissociate a subnet​

  1. Select a subnet with Status = Protected (radio button).
  2. Click Dissociate.
  3. Type dissociate (lowercase exactly) in the confirmation field, then click Confirm.

The system shows "Dissociating subnet. This may take a few minutes." and sets Last Action State = In Progress.

note
  • Only one subnet can be processed at a time.
  • A subnet with Last Action State = In Progress is locked; other subnets remain available.
  • The screen auto-refreshes every 15 seconds. Click Refresh to update manually.
  • Only subnets of type Routed appear in the list.