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Barracuda Web Application Firewall

Microsoft Azure

  • Last updated on

Overview

Cloud-hosted deployment of the Barracuda Web Application Firewall for Azure currently supports One-Arm Proxy Mode. For more information, see Configuring One-Arm Proxy Mode.

            waf_on_az.png

To meet a variety of performance requirements, different VM sizes are supported by the Barracuda Web Application Firewall. Depending on the VM size, you can have:

  • Up to 8 vCPU.
  • Up to 64 GB of memory.

See Supported Virtual Machine Size.

Licensing Options

The Barracuda Web Application Firewall for Azure is available with the Bring Your Own License (BYOL) and Hourly / Metered options.

Bring Your Own License (BYOL)

With the Bring Your Own License (BYOL) option, you are required to get the Barracuda Web Application Firewall license token, either by:

BYOL Models and Instance Types

For BYOL, Barracuda Networks offers four models. The table below lists each model and the number of cores supported.

If you want to increase the performance of a license that you have already purchased, you can buy a license with more cores from Barracuda Networks and reconfigure your instance. 

Barracuda Web Application Firewall for Azure ModelNumber of vCPUs Supported
Level 11
Level 52
Level 104
Level 158

Supported Virtual Machine (VM) Size

The table below lists the VM sizes that are supported by the Barracuda Web Application Firewall.

Virtual Machine SizevCPUMemory
Standard_B1ms12
Standard_B2ms28
Standard_B4ms416
Standard_B8ms832
Standard_D2s_v328
Standard_D4s_v3416
Standard_D8s_v3832
Standard_D2_v328
Standard_D4_v3416
Standard_D8_v3832
Standard_DS1_v213.5
Standard_DS2_v227
Standard_DS3_v2414
Standard_DS4_v2828
Standard_D1_v213.5
Standard_D2_v227
Standard_D3_v2414
Standard_D4_v2828
Standard_A1_v212
Standard_A2_v224
Standard_A4_v248
Standard_A8_v2816
Standard_A2m_v2216
Standard_A4m_v2432
Standard_A8m_v2864
Standard_D2s_v328
Standard_D4s_v3416
Standard_D8s_v3832
Standard_D2_v324
Standard_D4_v3416
Standard_D8_v3832
Standard D4as_v4 416

You can add multiple Barracuda Web Application Firewall instances under one cloud service and load balance the traffic between the deployed instances to increase the throughput. For more information on load balancing, see the Load Balancing For Clustered Barracuda Web Application Firewall Instances in the Old Microsoft Azure Management Portal article.

Pay As You Go (PAYG)

With the Pay As You Go (PAYG) licensing option, you complete the purchase or evaluation of the Barracuda Web Application Firewall entirely within the Microsoft Azure gallery. After the instance is launched, it is provisioned automatically. You are charged hourly for both the Barracuda Web Application Firewall software and Microsoft Azure usage on Microsoft. 

PAYG Model and Instance Types

For more information on supported instance types, and default vCPU, default memory and hourly pricing, see Barracuda Web Application Firewall Pricing Details

If you want to increase the performance of an existing VM, configure it with a larger instance type on Microsoft Azure, and you will be charged accordingly by Microsoft. The VM will automatically be reconfigured by Microsoft with the resources and capabilities of the larger instance type.

If you need to add additional storage, you must create a new attached drive; this applies to Barracuda virtual machines purchased through the Microsoft Azure Marketplace on February 2015 or later. You cannot attach new storage in earlier deployments

Next Steps