Example: Use A Ping Test For Wan Failover From Ethernet To Cellular - Digi IX40 User Manual

Interfaces
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
Modem 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 default Update Routing recovery action will increase the metric for the ETH1 interface
by 100, which will cause the IX40 device to start using the Modem interface as the default route. It
continues to regularly test the connection to ETH1, and when tests on ETH1 succeed, the device falls
back to that interface.
To achieve this WAN failover from the ETH1 to the Modem interface, the WAN failover configuration is:
IX40 User Guide
Set the interface to test.
l
i. Use the ?to determine available interfaces:
ii. Set the interface. For example:
(config network interface my_wan surelink tests 1)> other_interface
/network/interface/eth1
(config network interface my_wan surelink tests 1)>
Set the type of IP connection:
l
(config network interface my_wan surelink tests 1)> other_ip_version value
(config network interface my_wan surelink tests 1)>
where value is one of:
any: Either the IPv4 or IPv6 connection must be up.
o
both: Both the IPv4 or IPv6 connection must be up.
o
ipv4 The IPv4 connection must be up.
o
ipv6: The IPv6 connection must be up.
o
The status required for the test to past.
l
(config network interface my_wan surelink tests 1)> other_status value
(config network interface my_wan surelink tests 1)>
where value is one of:
up: The test will pass only if the referenced interface is up and passing its
o
own SureLink tests (if applicable).
down: The test will pass only if the referenced interface is down or failing its
o
own SureLink tests (if applicable).
Wide Area Networks (WANs)
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