Example: Use A Ping Test For Wan Failover From Ethernet To Cellular - Digi Connect IT 16 User Manual

Interfaces
5. Delete the target:
(config network interface my_wan> del ipv4 surelink target 1
(config network interface my_wan)>
6. Save the configuration and apply the change:
(config network interface my_wan ipv4 surelink)> save
Configuration saved.
>
7. Type exit to exit the Admin CLI.
Depending on your device configuration, you may be presented with an Access selection
menu. Type quit to disconnect from the device.

Example: Use a ping test for WAN failover from Ethernet to cellular

In this example configuration, the ETH1 interface serves as the primary WAN, while the cellular WWAN
interface serves as the backup WAN.
In this example configuration, SureLink is used over for the ETH1 interface to send a probe packet of
size 256 bytes to the IP host 43.66.93.111 every 10 seconds. If there are three consecutive failed
responses, the Connect IT 16/48 device brings the ETH1 interface down and starts using the WWAN
interface. It continues to regularly test the connection to ETH1, and when tests on ETH1 succeed, the
device falls back to ETH1.
To achieve this WAN failover from the ETH1 to the WWAN interface, the WAN failover configuration is:

WebUI
1. Log into the Connect IT 16/48 WebUI as a user with full Admin access rights.
2. On the menu, click System. Under Configuration, click Device Configuration.
The Configuration window is displayed.
3. Configure active recovery on ETH1:
a. Click Network > Interface > ETH1 > IPv4 > SureLink.
b. For Interval, type 10s.
c. Click to expand Test targets.
Digi Connect IT® 16/48 User Guide
Wide Area Networks (WANs)
72