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Barracuda NextGen Firewall X


This Product is Going End-of-Life and End-Of-Support

End-Of-Sales: As of December 1st, 2018, all new sales for Barracuda NextGen Firewall X Series products have ceased. Only renewals of software and hardware subscriptions for a maximum of one year are available for a limited time up to an expiration date of 30th November 2020.

End-Of-Life and End-Of-Support on December 1st 2020: All Barracuda Firewall X-Series sales will cease; neither new sales nor any renewals will be available. If you currently hold a maintenance and support contract, you will continue to receive our award-winning support and services until your contract expires, or until Dec 1st, 2020, whichever occurs first. Please see the End-Of-Life definition as described in the End of Support and End of Life Information.

How to Configure a VLAN

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You must have a properly configured 802.1q-capable switch to support VLANs and at least one unconfigured port on your X-Series Firewall.

You can use VLANs to simulate several LANs on one physical network interface (but only one MAC address). The physical interface behaves as if it were several interfaces, and the switch behaves as if it were multiple switches. VLANs let multiple virtual networks share switches, cables, and routers. All VLANs created on a host interface share the bandwidth of the physical interface. However, you can configure bandwidth policies (QoS) to specify how much bandwidth an interface can use. The Barracuda NextGen Firewall X-Series can use up to 256 VLANs on one physical network interface and a maximum of 4096 VLANs globally. Only unconfigured ports can be used to create VLAN interfaces.


Create a virtual interface

  1. Go to the NETWORK > IP Configuration page. 
  2. In the Virtual Interface Configuration section, add an entry for the VLAN. In the VLAN configuration.

    You can only select ports that are not in use, capable of supporting VLANs and connected to a correctly configured VLAN switch.

  3. Click Save Changes.
  4. At the top of the page, click on the warning message to execute the new network configuration. It can take up to two minutes for the settings to be applied.

The VLAN interface then appears in the Network Interface Configuration section. VLAN interface names are displayed in the format: p<port number>.<vlan id>


Next steps

After adding the virtual interface, you can use it in your network configurations as if it were a physical interface. Continue with any of the following network configuration articles:

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