Add interfaces to the WAN bonding tunnel

When you add interfaces to the WAN bonding tunnel, you are telling the device that those interfaces should be added to - and participate in - the bonded link.

  1. Log in to Digi Remote Manager as an administrator.

  2. Navigate to the device's Settings menu.

  3. On the Settings menu that displays, expand Network > SD-WAN > WAN bonding > Bonding interfaces.

  4. Click to add a new interface to the WAN bonding tunnel.

    Note The EX15, EX50, IX20, IX30, IX40, TX40, TX54, TX64, and TX64 RAIL routers prioritize their WAN Ethernet connection over WWAN cellular connections. Consider this prioritization if using both wired Ethernet and cellular Internet connections. Make sure to add the highest priority in-use interface(s) to the WAN Bonding tunnel.

  5. In the Bonding interfaces menu that displays, for Interface, select the type of WAN interface you want to add.

  6. For Mode, choose one of the following options so the device knows how the interface should participate in the WAN bonding tunnel connection. Each mode defines the behavior, priority, and usage pattern of that interface.

    • Automatic: Automatically sets the mode to Cellular Optimized for Speed-mode for cellular, and Ethernet for non-cellular. This is the default mode.

    • Cellular Optimized for Speed: A general-purpose configuration suitable for most lines (4G, DSL, etc), with a fair tolerance for packet loss and latency.

    • Cellular Optimized for Latency: Another preset for mobile connections with an even higher focus on latency.

    • Ethernet: A preset for direct Ethernet connections, very sensitive to latency and packet loss.

    • Low Latency: Similar to Ethernet preset, but with higher tolerance for packet loss.

    • TCP Mode: Utilizes TCP instead of UDP, which allows for bonding over port 443/TCP. Higher throughput rate at the cost of latency. Useful in scenarios where UDP is throttled or blocked.

  7. Repeat steps 4 through 6 to add additional interfaces to the WAN bonding tunnel.

  8. For Bonding Proxy, click the toggle to enable. Enabling this option further optimizes standard TCP traffic.

  9. In the Client devices menu that displays, click to expand.

  10. Click to add a new client device to the WAN bonding tunnel.

  11. For Device, select the client device that needs to be added. Device refers to the local LAN port, interface, or bridge where you want to utilize the bonding proxy to optimize TCP traffic and send it from that network through the WAN bonding tunnel.

  12. Repeat Step 11 to add as many devices as needed.

  13. (Optional) For Encryption, click the toggle to enable. Enabling this option encrypts the traffic between the client and the WAN bonding server.

The WAN interfaces have been added to the tunnel.