Answers to the most frequently asked questions covering licensing, Flexi port modules, feature, and hard support.

Which licenses do I need when I have two devices in high-availability mode?

For active-active mode:

  • Each device requires its own subscriptions, and the active subscriptions must match on both devices.
  • Sandstorm doesn't affect the HA setup regardless of the expiry date on each device.

For active-passive mode:

  • Only the active device requires a license subscription. XG Firewall ensures the passive device has a copy of those subscriptions, so it can take on processing if the active device fails.

    It’s therefore vital that the subscriptions are activated on the intended active device. You must ensure that HA is turned on only from the device which has a valid subscription.

  • If a software or virtual device is used, you need to purchase only one base license, and once that serial number is registered, XG Firewall will manage the creation of the passive device. There’s no need to purchase a separate base firewall license for the passive device or a separate serial number.
  • The firewall that carries the license subscription must be configured as the primary node in the HA initial setup.
  • The initial HA primary node must be the primary node all the time.
  • If the initial HA primary node becomes the auxiliary after a restart or HA failover, and fails to come back online for 90 days, the HA cluster can run with the license subscription of the initial primary node. After 90 days, the HA cluster synchronizes to the license of the current primary node (initial auxiliary node). Normally the initial auxiliary node has no license subscription; therefore, the HA cluster loses its license subscription and works as a router only.

    The image below shows how to switch the active primary device to the passive auxiliary device.

    Button to switch to passive device
Note Active–Passive mode isn’t available for XG Firewall in Azure.

Is the synchronized application control feature supported in active-active mode?


Is it possible to establish an HA pair between XG 210 and an SG 210?

No. XG 210 can only connect to another XG 210 in HA. An XG 230 or even an SG 210 can't be used.

What happens if I manually synchronize the HA?

If you manually synchronize any of the HA cluster devices, the firewall drops all the masqueraded connections.

What happens if I restore a backup without HA configuration after enabling HA?

If a backup without HA configuration is restored after configuring HA, then HA is disabled. The primary device is accessible according to the backup configuration. The auxiliary device is accessible with the auxiliary admin IP address.