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Interfaces
8. (Optional) If the interface is a WWAN, enable Reset modem.
(Optional) For Reset modem fail count, type or select the number of times that the
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Surelink test must fail before the modem is reset. The default is 1.
9. If the interface is a WWAN, Switch SIM is enabled by default. Click to disable.
If Switch SIM is enabled, for Switch SIM fail count, type or select the number of times
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that the Surelink test must fail before the modem switches to the alternate SIM. The
default is 5.
Note
The SureLink Switch SIM option differs from the SIM failover option, which is set during
WWAN configuration. SIM failover applies when the modem is unable to connect to a cellular
network, whereas Switch SIM applies when the WWAN interface is failing SureLink tests even
though the modem is connected. See
more information about the SIM failover option.
10. (Optional) Enable Reboot device.
If Reboot device is enabled at the same time as either Restart interface or Reset modem,
Reboot device takes precedence.
For Reboot fail count, type or select the number of times that the Surelink test must
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fail before the device is rebooted. The default is 1.
11. Click to expand Test targets.
12. For Add Test Target, click .
13. Select the Test type:
Test another interface's status: Allows you to test another interface's status, to create
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a failover or coupled relationship between interfaces. If Test another interface's
status is selected:
For Test Interface, select the alternate interface to be tested.
l
For IP version, select the alternate interface's IP version. This allows you to
l
determine the alternate interface's status for a particular IP version.
For Expected status, select whether the expected status of the alternate interface
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is Up or Down. For example, if Expected status is set to Down, but the alternate
interface is determined to be up, then this test will fail.
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.
Digi Connect EZ 4/4i User Guide
Configure a Wireless Wide Area Network (WWAN)
Wide Area Networks (WANs)
for
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