Digi IX20-WAG4 User Manual page 69

Interfaces
Required configuration items
Enable SureLink.
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SureLink can be enabled for both IPv4 and IPv6 configurations. By default, SureLink is enabled
for IPv4 for the preconfigured WAN (ETH1) and WWAN (Modem). It is disabled for IPv6.
When SureLink is configured for Wireless WANs, SureLink tests are only run if the cellular
modem is connected and has an IP address. Use the SIM failover options to configure the IX20
device to automatically recover the modem in the event that it cannot obtain an IP address.
See Configure a Wireless Wide Area Network (WWAN)
Enable device reboot upon interface failure.
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The type of probe test to be performed, either:
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Ping: Requires the hostname or IP address of the host to be pinged.
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DNS query: You can perform a DNS query to a named DNS server, or to the DNS servers
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configured for the WAN.
HTTP or HTTPS test: Requires the URL of the host to be tested.
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Interface status: Determines if the interface has an IP address assigned to it, that the
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physical link is up, and that a route is present to send traffic out of the network interface.
Additional configuration items
See Configure SureLink active recovery to detect WAN/WWAN failures
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configuration parameters.
To configure the IX20 device to reboot when an interface has failed:

WebUI
SureLink can be configured for both IPv4 and IPv6.
1. Log into the IX20 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. Click Network > Interfaces.
IX20 User Guide
Wide Area Networks (WANs)
for details about SIM failover.
for optional SureLink
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