Digi IX40 User Manual page 102

Interfaces
Required configuration items
Enable SureLink.
n
By default, SureLink is enabled for the preconfigured WAN (ETH1) and WWAN (Modem). The
default configuration tests the DNS servers configured for the interface.
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 IX40
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.
n
The type of tests to be performed:
n
Ping test: Uses ICMP to determine connectivity. The default behavior is to ping the
l
interface gateway, which means that an initial traceroute is sent to the hostname or IP
address configured in the SureLink advanced settings, and then the first hop in that route
is used for the ping test.
DNS test: Performs a DNS query to the named DNS server.
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HTTP test: Uses HTTP(s) GET requests to determine connectivity to the configured web
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server.
Test DNS servers configured for this interface: Tests communication with DNS servers
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that are either provided by DHCP, or statically configured for this interface.
Test the interface status: Tests the current status of the interface. The test fails if the
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interface is down. Failing this test infers that all other tests fail.
Custom test: Tests the interface with custom commands.
l
TCP connection test: Tests that the interface can reach a destination port on the
l
configured host.
Test another interface's status: Tests the status of another interface.
l
Additional configuration items
n See Configure SureLink active recovery to detect WAN/WWAN failures
configuration parameters.
To configure the IX40 device to reboot when an interface has failed:
É
Web
1. Log into Digi Remote Manager, or log into the local Web UI as a user with full Admin access
rights.
2. Access the device configuration:
Remote Manager:
a. Locate your device as described in
device.
b. Click the Device ID.
c. Click Settings.
d. Click to expand Config.
IX40 User Guide
for details about SIM failover.
Use Digi Remote Manager to view and manage your
Wide Area Networks (WANs)
for optional SureLink
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