GL.iNet Flint 2 (GL-MT6000) – Dual WAN Load Balancing Configuration
Hardware
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Router: GL.iNet Flint 2 (GL-MT6000)
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Firmware version: 4.8.3
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OpenWrt-based firmware
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Installed package:
luci-app-mwan3
Network topology
ISP1 → WAN port
ISP2 → LAN1 port (secondwan)
MWAN3 interface configuration
WAN
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Enabled: Yes
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Initial state: Online
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Internet protocol: IPv4
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Tracking method: Ping
Tracking addresses:
1.1.1.1
8.8.8.8
208.67.222.222
208.67.220.220
Parameters:
Tracking reliability: 1
Ping count: 1
Ping size: 56
Max TTL: 60
Ping timeout: 2
Ping interval: 3
Failure interval: 3
Recovery interval: 5
Interface down: 3
Interface up: 5
Metric: 1
SECONDWAN
Use exactly the same settings.
The only difference is:
Metric: 2
Members
wan_only
Interface: wan
Metric: 1
Weight: 5
secondwan_only
Interface: secondwan
Metric: 1
Weight: 3
Policies
default_policy
Members:
- wan_only
- secondwan_only
Last resort:
default (use main routing table)
isp1_policy
Members:
- wan_only
Last resort:
default (use main routing table)
isp2_policy
Members:
- secondwan_only
Last resort:
default (use main routing table)
Rules
Devices can be assigned to a specific ISP according to their IP address.
Example 1
Name: Smart TV
Source address: 10.1.1.10/32
Protocol: All
Sticky: No
Policy assigned: isp1_policy
Example 2
Name: Security camera
Source address: 10.1.1.16/32
Protocol: All
Sticky: No
Policy assigned: isp2_policy
Unassigned devices
Any device that does not have a specific rule automatically uses:
default_policy
Performance results
ISP1
Download: 500 Mbps
Upload: 30 Mbps
ISP2
Download: 300 Mbps
Upload: 300 Mbps
Both ISPs active
Download: 800 Mbps
Upload: 350 Mbps
Notes
This configuration provides:
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load balancing;
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automatic failover;
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traffic separation;
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continuous link monitoring;
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device-based routing policies.
This setup uses MWAN3 load balancing and is not based on bonding technologies such as MPTCP, MLPPP, Speedify, or OpenMPTCProuter.