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Interfaces
5. After creating or selecting the WAN or WWAN, click IPv4 (or IPv6) > SureLink.
6. Enable SureLink.
SureLink can be enabled for both IPv4 and IPv6 configurations. By default, SureLink is enabled
for IPv4 for the preconfigured WAN (ETH) and WWAN (Modem). It is disabled for IPv6.
7. Click to expand Test targets.
8. For Add Test Target, click g .
9. Select the Test type:
Ping test: Tests connectivity by sending an ICMP echo request to the hostname or IP
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address specified in Ping host. You can also optionally change the number of bytes in
the Ping payload size.
DNS test: Tests connectivity by sending a DNS query to the specified DNS server.
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HTTP test: Tests connectivity by sending an HTTP or HTTPS GET request to the URL
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specified in Web servers. The URL should take the format of http[s]://hostname/
[path].
Test DNS servers configured for this interface: Tests connectivity by sending a DNS
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query to the DNS servers configured for this interface.
Test the interface status: The interface is considered to be down based on:
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Down time: The amount of time that the interface can be down before this test is
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considered to have failed.
Allowed values are any number of weeks, days, hours, minutes, or seconds, and take
the format number{w|d|h|m|s}.
For example, to set Down time to ten minutes, enter 10m or 600s.
The default is 60 seconds.
Initial connection time: The amount of time to wait for an initial connection to the
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interface before this test is considered to have failed.
Allowed values are any number of weeks, days, hours, minutes, or seconds, and take
the format number{w|d|h|m|s}.
For example, to set Initial connection time to ten minutes, enter 10m or 600s.
The default is 60 seconds.
10. Optional active recovery configuration parameters:
a. For Restart interface, enable to configure the device to restart the interface when its
connection is considered to have failed. This is useful for interfaces that may regain
connectivity after restarting, such as a cellular modem.
Digi Connect IT® Mini User Guide
Wide Area Networks (WANs)
47
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