After a firewall is created, enable it based on your network security requirements. You can also disable an enabled firewall when required. Before enabling a firewall, ensure that subnets have been associated with the firewall and that inbound and outbound rules have been added to the firewall.
After a firewall is disabled, user-defined rules will become invalid and only the default firewall rules will apply. Disabling a firewall may interrupt network traffic. Exercise caution when performing this operation. For information about the default firewall rules, see Default Firewall Rules.
The firewall is enabled or disabled.