Barracuda Load Balancer ADC 842 with 10GbE Fiber NICs - BBF842A

  • 15 Gbps Maximum Throughput
  • 500 Real Servers Supported
  • 2U Fullsize Rackmount Chassis
  • 3.8 Amps Input Current
  • 8 x Gigabit Ethernet Connections
  • 2 x 10 Gigabit Fiber Connections

Highly demanding enterprise networks require full-featured application delivery that optimizes application load balancing and performance while providing protection from an ever-expanding list of intrusions and attacks.

The affordable Barracuda Load Balancer ADC is ideal for optimizing application performance and availability. Using health and performance checks, the Barracuda Load Balancer ADC distributes traffic among servers for efficient use of server resources and provides server failover for high-availability. Advanced features for application optimization, geo-based load balancing, and integrated security put the Barracuda Load Balancer ADC far above other solutions for performance - and value.

The Barracuda Advantage

  • Proven technology that has blocked more than 11 billion real-world attacks
  • High-performance platform designed for data centers
  • GeoIP-based application control
  • Pre-built application templates for rapid deployment
  • Available as a virtual appliance

Product Spotlight

  • Multiport platform with fiber and copper network interfaces
  • Advanced Layer 4 & Layer 7 load balancing
  • SSL offloading & application acceleration
  • Global Server Load Balancing for application delivery across data centers
  • Comprehensive attack protection and Data Loss Prevention


The Barracuda Load Balancer ADC is ideal for optimizing application performance. It offloads compute-intensive SSL transactions from the server, preserving resources for applications. In addition, optimization features such as caching, compression, and TCP pooling enable faster application delivery and ensure scalability.


Using health and performance checks, the Barracuda Load Balancer ADC distributes traffic for efficient use of server resources and employs server failover for high availability. Global Server Load Balancing allows redundancy across multiple sites enhancing availability and speeding disaster recovery.


Content routing and content rewrites enable full control of application traffic and customized application delivery based on users, regions, and/or devices. Client controls gives administrators the ability to throttle requests to ensure application availability even during periods of heavy traffic.


Application Security provides superior protection against data loss, DDoS, and all known application-layer attack modalities. Automatic updates ensure comprehensive security for existing and emerging Layer 7 threats such as Cross-site Scripting (XSS), SQL injections (SQLi), and Cross-site Request Forgery (CSRF).

Ensure Application Scalability, Performance, and Security

The Barracuda Load Balancer ADC is ideal for organizations looking for a high-performance, yet cost-effective application delivery and security solution. With the broadest range of hardware and virtual models, the Barracuda Load Balancer ADC provides maximum flexibility for organizations looking to build highly secure and scalable application infrastructure, whether it's deployed on-premises or in the cloud.

Secure Application Delivery Controller for Availability, Acceleration, and Control

Highly demanding enterprise networks require full-featured application delivery that optimizes application load balancing and performance while providing protection from an ever-expanding list of intrusions and attacks.

L4/L7 Load Balancing

The Load Balancer ADC can be deployed as a hardware or virtual appliance and can intelligently load balance hardware or virtual servers running any number of Layer 7 and Layer 4 protocols. These include HTTP/S, SMTP, IMAP, FTP/S, DNS, XML, TCP, and UDP, as well as a number of other common protocols. Additionally, it supports both IPv6 and IPv4 load balancing and can operate in full IPv6 or IPv4 networks, as well as mixed environments where an address translation is needed to bridge the IPv6 and IPv4 networks.

Intelligent Application Monitors

Intelligent traffic monitoring capabilities enable the Barracuda Load Balancer ADC to distribute traffic efficiently while ensuring high application availability. It monitors server health to determine that application servers are not only reachable, but alive. If the Barracuda Load Balancer ADC detects issues, it automatically removes downed servers from the server pool and rebalances traffic among the remaining servers. It has the ability to group servers in the application groups so that if a server in a group fails, it can automatically failover all traffic to the remaining application groups.

Global Server Load Balancing

For scalability and high availability across data centers, Barracuda Load Balancer ADCs can be deployed to balance traffic among different sites in different geographic regions. Organizations can route traffic using a variety of methods such as primary disaster recovery (DR) or closest geographical data center.

SSL Offloading

SSL transactions are resource intensive and can slow down application performance. Offloading the SSL transactions to Barracuda Load Balancer ADCs frees up application server resources to focus on delivering rich applications to end users and ensure application scalability. Barracuda Load Balancer ADCs support offloading standard 1024-bit SSL keys, as well as the more secure and more process-intensive 2048-bit SSL keys.

Authentication and Authorization

The Barracuda Load Balancer ADC fully integrates Active Directory or any other RADIUS or LDAP-compatible authentication services. Combined with the strong access control capabilities, administrators can provide granular control over user/group access to resources. This ensures that only authorized users will be able to reach applications, guaranteeing that non-authenticated traffic never crosses the DMZ.

HTTP Caching

The Barracuda Load Balancer ADC improves the user’s experience by increasing server response time. Caching web content saves network bandwidth and reduces loads on backend web servers.

Data Compression

To maximize outbound bandwidth, the Barracuda Load Balancer ADC can automatically compress content to minimize network traffic between application servers and the end user. Best of all, this capability is compatible with most modern browsers, requiring no additional software.

Content Routing

The Barracuda Load Balancer ADC has full traffic control and can route requests to servers based on region, device, browser, or a number of other factors. This enables organizations to deliver customized application responses to users.

Application Attack and DDoS Protection

The Barracuda Load Balancer ADC provides industry-leading security to help organizations secure critical applications. It protects against OWASP Top 10 attacks such as SQL Injection, Cross-site Scripting (XSS), and Cross-site Request Forgery (CSRF). Additionally, Barracuda Load Balancer ADCs have the ability to granularly control the number of requests to protect against rate-based attacks like Denial of Service (DoS) or Distributed Denial of Service (DDoS). Administrators have the ability to intelligently fingerprint and throttle or drop traffic based on IP or client.

Data Loss Prevention

The Barracuda Load Balancer ADC also offers outbound content inspection for Data Loss Prevention (DLP). It prevents data leakage by either masking or blocking responses containing sensitive information such as credit card numbers or any other custom data patterns.

Automatic Security Updates

The security capabilities of the Barracuda Load Balancer ADC are augmented by an extensive network of more than 150,000 sensors deployed worldwide that feed into Barracuda Labs. The sensors provide valuable data for the security research team to build new security definitions and automatically update units in the field. The ability to apply new definitions and “virtually patch” ensure the highest security posture for critical applications.

Microsoft Certified for Exchange and Lync

Barracuda provides a complete application delivery solution for Microsoft Exchange and Lync. Barracuda Load Balancer ADCs have been certified by Microsoft as a preferred Hardware Load Balancing solution since 2010. Our highly trained technical support engineers have worked with countless Barracuda customers and partners to design and implement robust solutions for scaling Exchange and Lync applications.

Pre-Built Templates for Microsoft Applications

Thousands of organizations from numerous verticals deploy Barracuda to ensure high availability, performance, and security of their critical Microsoft applications. There a number of certified deployments and solution guides for all commonly deployed models and versions of Exchange, SharePoint, Lync, Terminal Services, IIS, Threat Management Gateway (TMG) and other popular Microsoft applications. You can find all of our technical guides and solutions at our Barracuda Campus.

Cloud Edition for Amazon Web Services

Barracuda Load Balancer ADC provides full-featured application delivery along with unparalleled performance, plus greater control for applications hosted on Amazon Web Services (AWS). The Barracuda Load Balancer ADC integrates with CloudFormation Templates to support fully automated deployments with bootstrapping and High Availability (HA). 


Many organizations are using desktop virtualization (VDI) to securely delivery Windows and other desktop applications. Desktop infrastructure is a mission critical application that needs to scale as the organization grows. It is also important this infrastructure be resilient in the face of operational and natural disasters. The key to scalability and reliability is to load balance critical pieces of the VDI infrastructure.

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