1. Barracuda Link Balancer Link Reliability and Bandwidth Optimization

2. 2 Barracuda Networks Confidential 2 Introduction Provides Internet WAN and link load balancing –Easily distribute traffic among multiple links to the Internet –Connect DSL, Cable, T1/T3s to the same or different ISPs –Plugs into existing network infrastructure –Supports up to 6 Internet links

3. 3 Barracuda Networks Confidential 3 Challenges Single Internet link (Leased T1/T3) Bandwidth is expensive If ISP link is down, Internet is down Low service reliability User productivity loss Adding Bandwidth without intelligent management is ineffective corporate network Requirement Aggregate Internet links (cable, xDSL) Not bound to a single Internet connection Maximize link throughput Increase service reliability Maximize user productivity Optimize Bandwidth utilization ISP

4. 4 Barracuda Networks Confidential 4 Barracuda Link Balancer Features Deployment Web based configuration Deployed stand-alone or with existing Firewall Link balancing Internet connection balancing Internet link health checking and failover Link speed assignment/dynamic link speed support Inbound Link Balancing and failover through Authoritative DNS Security DDOS protection Traditional Firewall capabilities like ACL, 1:1 NAT, Port Forwarding Bandwidth management Bandwidth Monitoring Quality of Service (QoS) control to prioritize application bandwidth Network services Site-to-site VPN DHCP, DNS caching services

5. 5 Barracuda Networks Confidential 5 Barracuda Link Balancer Benefits AGGREGATES MULTIPLE INTERNET LINKS IMPLEMENTS PERIMETER SECURITY ENABLES TRANSPARENT INTERNET LINK FAILOVER MANAGES BANDWIDTH

6. 6 Barracuda Networks Confidential 6 Barracuda Link Balancer Benefits AGGREGATES MULTIPLE INTERNET LINKS IMPLEMENTS PERIMETER SECURITY ENABLES TRANSPARENT INTERNET LINK FAILOVER MANAGES BANDWIDTH AGGREGATES MULTIPLE INTERNET LINKS Use multiple cable / xDSL in place of T1 / T3 Link Balancing Decrease network down-time Save money

7. 7 Barracuda Networks Confidential 7 Barracuda Link Balancer Benefits AGGREGATES MULTIPLE INTERNET LINKS IMPLEMENTS PERIMETER SECURITY ENABLES TRANSPARENT INTERNET LINK FAILOVER MANAGES BANDWIDTH IMPLEMENTS PERIMETER SECURITY Protect against DDOS attacks Traditional firewall capabilities Site-to-site VPN

8. 8 Barracuda Networks Confidential 8 Barracuda Link Balancer Benefits AGGREGATES MULTIPLE INTERNET LINKS IMPLEMENTS PERIMETER SECURITY ENABLES TRANSPARENT INTERNET LINK FAILOVER MANAGES BANDWIDTH ENABLES TRANSPARENT INTERNET LINK FAILOVER Use multiple service providers 100% Internet uptime High customer / user satisfaction

9. 9 Barracuda Networks Confidential 9 Barracuda Link Balancer Benefits AGGREGATES MULTIPLE INTERNET LINKS IMPLEMENTS PERIMETER SECURITY ENABLES TRANSPARENT INTERNET LINK FAILOVER MANAGES BANDWIDTH MANAGES BANDWIDTH Prioritize bandwidth usage Block or limit bandwidth for specific applications Assign links for applications

10. 10 Barracuda Networks Confidential 10 Ethernet Bypass and High Availability options avoid single point of failure Deployment modes Replace existing Firewall –Provide default gateway –Simple firewall, port forwarding and NAT rules –Local network services, such as DHCP and DNS Transparently with existing firewall –Pass through VPN tunnels –No need to modify existing firewall rules –Turns existing edge network devices WAN link to High Availability

11. 11 Barracuda Networks Confidential 11 Model Comparison Feature230330430 Internet Link Connections237 Link Balancing Link Health Checking Link Failover Traffic Aggregation Network Traffic Firewall Local DHCP and DNS Traffic Monitoring SNMP Site-to-Site VPN Bandwidth Management and QoS Ethernet Bypass Clustering/High Availability Customizable Branding API

12. 12 Barracuda Networks Confidential 12 Immediate Return on Investment Monthly prices of DSL vs. Leased lines

13. 13 Barracuda Networks Confidential 13