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Enterprise R20 Appliance

Offering incredible power & performance - at entry level pricing. The Enterprise R20 is license restricted to 5 clusters, each with 4 back-end servers.
SKU: EnterpriseR20



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The Enterprise R20 runs on exactly the same high performance hardware as our Enterprise MAX model - offering top end functionality at entry level pricing.

Offering incredible power & performance - at entry level pricing. The Enterprise R20 is license restricted to 5 clusters, each with 4 back-end servers. You'll probably never need to upgrade the license, but just in case you do, the transition to unrestricted is seamless, with no downtime or need to swap out your existing hardware.

  • Limited to 5 VIPs/4 RIPs
  • 8GB RAM
  • Quad Core Intel® Xeon® CPU
  • 3 Year Warranty
  • 3Gbps Throughput
  • 227,405 http RPS
  • 15,600,000 Max Connections
  • 6,316 SSL TPS

How many other vendors have their entry level unit capable of 3,671 SSL TPS?

The Enterprise R20 enables those with a tight budget to get the power and throughput they need to start and then upgrade the license as they grow. An ideal starting point, small light and powerful - 15 million+ concurrent connections & 3Gbps throughput.

Licensed for up to 5 separate load balanced services, each with no more than 4 servers in a cluster.

Key Features

  • Yes  Advanced L4 & L7 load balancing
  • Yes  SSL Acceleration/Offload
  • Yes  Supports for any TCP/UDP protocols
  • Yes  Direct Server Return (DSR)
  • Yes  NAT-based forwarding
  • Yes  Configurable S-NAT support
  • Yes  Dedicated WAF functionality
  • Yes  PCI-DSS compliant
  • Yes  Advanced health checking
  • Yes  Intuitive WUI
  • Yes  Configuration wizards
  • Yes  Sensible default settings
  • Yes  Real time graphical stats
  • Yes  One-click server maintenance
  • Yes  Simple backup and restore

Optional Extra Features

Technical Support

A wide range of support options are available to suit your needs. From basic security updates only to 24/7 global access to our dedicated in-house support team.

Next Day Hardware Replacement

3 years return to base warranty is included as standard. This can be upgraded to a next day hardware replacement service should you wish.

Global Load Balancing

This model can be used for load balancing between two separate geographic locations using our in-house managed Global DNS solution.

Cloud based DOS protection

We have partnered with Sucuri to offer a powerful defense against both Denial of Service and hackers for your application.


The appliance - ENTERPRISE R20 is the fastest way to scale your web site. Simply place two Ultra-reliable Load balancer .org appliances (in fail-over mode) between your firewall and your web servers. All web requests are handled by the load balancer and dispatched to individual web servers based on the scheduling algorithm you select. If any web server fails a health check it is immediately taken out of the cluster so that your customers are not affected.

Hardware platform

  • 4 x 1Gbps full duplex ethernet ports
  • SSD Storage
  • 8Gb DDR RAM
  • Quad Core Intel Xeon
  • IPMI port as standard (remote boot and console)
  • Local console access via VGA,USB, Serial & IPMI
  • Remote console access via SSH & IPMI
  • CE/FCC Certified, UL Listed, RoHS Compliant
  • 200W ATX power supply
  • Total BTU Heat Output: 1075

Standard Features

  • Server Load Balancing (SLB) for any TCP or UDP based protocol
  • SSL Acceleration/Offload
  • Layer 7 Content Switching
  • This model is restricted to 20 real servers (5 VIPs * 4 RIPs)
  • No bandwidth, performance or feature limitations
  • High performance Direct Routing (N-Path), TUN, NAT & SNAT
  • Schedulers: Round Robin, Least Connection, Weighted Least Connection, Weighted Round Robin
  • Dynamic Schedulers: Windows & Linux feedback agents, Custom HTTP feedback option
  • Load balance almost ANY protocol i.e. HTTP, HTTPS, SMTP, POP3, IMAP, Terminal Server etc
  • Support for Direct Server Return (DSR) configurations
  • Configurable S-NAT support
  • Link aggregation (802.3ad)
  • VLAN Tagging (802.1Q)


  • Unlimited support for SSL Certificates
  • Support for Third Party Certificates
  • Automated SSL Certificate Chaining
  • SSL Certificate Signing Request (CSR) Generation
  • PFX upload and conversion
  • Proxy protocol support
  • PCI-ready SSL Implementation


  • Up to 3Gbps Throughput
  • SSL Acceleration/Offload up to 6,316 TPS
  • 66,272 http page GETs/second
  • Up to 1.2Gbps L7 Throughput
  • 15,600,000 Concurrent sessions

L4/L7 Sticky (Persistence)

  • Connection persistence based on
  • – Source IP address
  • – SSL Session ID
  • – Passive Cookie
  • – Active Cookie (Insert)
  • – RDP Cookie / Session Broker
  • – X-forwarded for header
  • Port following (Persistence on multiple combined ports)
  • Multiple fallback options i.e. use source IP if no cookie found

Security Functionality

  • Fully integrated WAF (Web Application Firewall)
  • OWASP top 10 protection
  • Persistent White/Black List (Access Control List system)
  • Firewall filtering (full iptables scripting support)
  • Firewall lock down wizard
  • DDOS mitigation both at layer 4 & 7
  • Virtual patching
  • HTTP & SYN Flood protection
  • Block SQL Injection Attacks
  • Prevent Cross Site Scripting (XSS)
  • Stop Hackers Exploiting Software Vulnerabilities
  • FIPS 140-2 Compliant
  • PCI DSS Ready

Health checking and high availability

  • Application health checking for DNS, FTP, HTTP, HTTPS, IMAP, NNTP… and many more
  • ICMP health checking of server farm machines
  • Complex manually scripted health checks
  • Automatic reconfiguration for defective real server machines
  • Automatic replication of static & dynamic configuration from master to slave load balancer
  • Stateful Failover (persistence table replication)
  • One click secure clustered pair configuration

Scheduling and balancing methods

  • Round Robin
  • Weighted Round Robin
  • Least Connection
  • Weighted Least Connection
  • Agent-based Adaptive (Windows and Linux Agents)
  • Layer 7 Content Switching
  • Destination Hash for transparent proxy


  • Secure, SSH, HTTP and HTTPS for remote access administration
  • Fully configurable using Web User Interface
  • Easy start configuration and maintenance wizards
  • WebUI-based Help Assistant
  • Virtual Service Configurations can be edited and tuned on-the-fly
  • Real time performance and availability displays
  • Optionally configure console port for local administration
  • Remotely scriptable Command Line Interface (LBCLI) Option
  • SOAP interface to the LBCLI API
  • Local and Remote syslogd support
  • Selective restore of physical and Virtual Service data
  • Support for Connection Draining or halting with or without persistence
  • Software and Security updates available on & off-line
  • WebUI Log Reporting with Tabbed Browser Support
  • SNMP support for performance metrics
  • Full root access to with a multitude of diagnostic tools tcpdump etc

Warranty & Support Services

  • Hardware Warranty:
  • 3 years return-to-base included as standard
  • Support Options:
  • Premium Support - Unlimited 24/7 access to our Technical Support Engineers
  • Business Hours Support - Unlimited support during business hours (8x5)