By Joshua M. Johnson 
Setting up a mesh network can significantly enhance connectivity in large spaces or buildings with multiple levels. MikroTik’s devices, famed for their flexibility and power, are well-suited for this application. This article outlines the steps and considerations for creating a Mikrotik mesh network that optimizes your WLAN coverage.
Understanding the Basics of Mikrotik Mesh Networking
A mesh network consists of multiple access points (APs) that work together to create a unified wireless network. Unlike traditional setups, where devices operate independently, in a mesh configuration, devices communicate with one another to improve coverage and reduce dead zones. This is particularly beneficial in multi-level homes, large offices, or any area where an uninterrupted wireless signal is crucial.
Essential Hardware for a Mesh Network
To set up a MikroTik mesh network, you’ll need:
- MikroTik Access Points: Models like the cAP ax or RBcAPGi-5acD2nD are commonly used.
- Ethernet Cables: For connecting the primary access point to your modem/router.
- Router (optional): Depending on your requirements, you may already have one, or you may need to configure the MikroTik device to function as a router.
Step-by-Step Setup Process
1. Device Configuration
Begin by configuring the primary access point (AP1) that is wired to your modem/router:
- Connect to the MikroTik device using Winbox or WebFig.
- Assign IP Configuration: Set the IP configurations to be in the same subnet as your existing network (if applicable).
- Create a Bridge:
/interface bridge add name=bridge1 /interface bridge port add bridge=bridge1 interface=ether1
This bridge will allow all connected devices to communicate.
2. Configure DHCP
Ensure that DHCP is correctly configured on the main access point:
- Set DHCP Client on bridge:
/ip dhcp-client add interface=bridge1 disabled=no
This allows the access point to obtain an IP address from your DHCP server, typically your router.
3. Connect Additional Access Points
For the additional APs (AP2 and AP3), follow similar steps:
- Set the same SSID and Security Settings: Consistency ensures that devices can roam seamlessly.
- Choose the Right Modes: For uplink connections, use
station-bridgefor the 5GHz band to avoid bandwidth limitations:/interface wireless set wlan2 mode=station-bridge
4. Use Virtual Interfaces (Optional)
To maintain performance, consider using virtual interfaces:
- Create virtual APs on the 5GHz interface for client access:
/interface wireless add name=wlan5 virtual-repeater
This setup helps isolate traffic and utilize the bandwidth of different bands efficiently.
5. Final Adjustments for Roaming
To ensure that devices can move freely between access points:
- Use Access Control Lists (ACLs): This controls which devices can connect to which AP based on signal strength.
- Adjust Transmission Power: Configure appropriately to reduce interference:
/interface wireless set wlan1 tx-power=15
6. Testing and Troubleshooting
After the configuration is complete, test the network:
- Check that devices connect to the nearest AP based on signal strength.
- Verify that roaming works seamlessly; if devices stick to one AP, consider revisiting your configurations for overlapping channels and power settings.
Conclusion
Creating a MikroTik mesh network allows for seamless coverage across larger areas, making it an optimal choice for both residential and commercial environments. By carefully configuring each access point, setting DHCP and using appropriate wireless modes and channels, you can enhance performance and ensure that devices maintain strong and stable connections. Always record your configurations for future reference and adjustments, and consider exploring advanced features offered by RouterOS for optimal performance.
In essence, with the right setup and a thorough understanding of your devices, you can unlock powerful connectivity that meets the demands of modern internet usage.