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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 (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)
7. Click to expand Test targets.
8. For Add Test Target, click .
9. 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:
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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.
IX20 User Guide
For Test Interface, select the alternate interface to be tested.
For IP version, select the alternate interface's IP version. This allows you to
determine the alternate interface's status for a particular IP version.
For Expected status, select whether the expected status of the alternate interface
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.
Wide Area Networks (WANs)
for details about SIM failover.
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