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Dual Internet Connections Configuration using Kerio Control Load Balancing

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Load Balancing Configuration in Kerio Control Firewall
Load balancing in Kerio Control helps distribute internet traffic across multiple WAN connections to optimize bandwidth usage, improve redundancy, and ensure failover. Follow the steps below to configure it:
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Step 1: Access the Kerio Control Web Interface
1. Open a web browser and enter the Kerio Control management IP (e.g., http://192.168.1.1:4080).
2. Log in using admin credentials.
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Step 2: Configure Internet Interfaces
1. Go to Interfaces under Dashboard.
2. Check the status of available WAN connections (e.g., ISP1 and ISP2).
3. If you haven't added multiple WAN connections, click "Add Interface", select Internet, and configure the connection settings (e.g., DHCP, Static, or PPPoE).
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Step 3: Enable Load Balancing
1. Navigate to Traffic Rules → Select Internet Interfaces.
2. Click on the Load Balancing tab.
3. Enable Load Balancing by checking "Enable Load Balancing".
4. Adjust the Weight Percentage (%) for each WAN connection.
o Example:
 ISP1 (Primary) → 70%
 ISP2 (Secondary) → 30%
5. Click Apply.
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Step 4: Configure Failover (Optional but Recommended)
1. In the Load Balancing section, enable Failover by checking "Use Interface for Failover".
2. Set a Health Check Method (Ping, TCP, or HTTP).
3. Define a Failover Threshold (e.g., if a WAN connection fails for 10 seconds, switch to the backup).
4. Click Apply and Save Changes.
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Step 5: Define Traffic Rules (Optional - Policy-Based Load Balancing)
To route specific traffic through a preferred WAN:
1. Go to Traffic Rules → Click Add Rule.
2. Set the Source (e.g., LAN subnet or specific IP).
3. Set the Destination (e.g., Any or specific website).
4. Under Action, select "Route through specific Internet Interface" and choose the WAN interface.
5. Click OK → Apply the changes.
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Step 6: Test and Monitor Load Balancing
1. Go to the Status tab and check the Interfaces section.
2. Test failover by disconnecting a WAN link and ensuring traffic switches automatically.
3. Use ping, traceroute, or speed tests to confirm traffic distribution.
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Conclusion
By configuring Load Balancing in Kerio Control, you ensure optimal internet utilization, improve network performance, and enable automatic failover in case of link failure. Let me know if you need further assistance!

Chapters:
00:00 Chapter 1 Introduction
00:30 Chapter 2 Network Infrastructure Introduction
01:40 Chapter 3 VMWare Virtual Network Editor
02:52 Chapter 4 Network Interface Setting for Kerio Control Virtual Machine
04:15 Chapter 5 Network Interface Setting for Windows Virtual PC
04:54 Chapter 6 Accessing Kerio Control Firewall
05:44 Chapter 7 IP Address Configuration for All Interfaces
07:08 Chapter 8 Load Balancing Configuration for Dual Internet Services
08:26 Chapter 9 Testing and Monitoring