Digi Connect WAN Series User Manual page 58

Digi Connect WAN Family web interface
Link Test Settings for each of the network interfaces: The options that follow configure the
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link tests for the network interfaces. Each network interface has its own set of options.
Failover can support Ethernet, Wi-Fi and Mobile (cellular) network interfaces. The available
interfaces vary among different Digi products.
Enable IP Network Failover for the XXX Interface: Enable use of the XXX interface for
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failover, where XXX is Ethernet, Wi-Fi, or Mobile. Click the check box to turn failover on or
off. If a network interface is not enabled for use by failover, it will not be considered by
failover for use in selecting the default gateway.
No Test: Click the radio button to select no link tests will be used for this interface. Since
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no link tests are run, failover will only be aware of the Up or Down status of the interface.
Ping Test: Click the radio button to select the Ping Test as the link test to use for this
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interface. The Ping Test sends ICMP Echo Request packets to the configured destination IP
address. If you receive an ICMP Echo Reply (ping reply), the link test successfully
demonstrated that you can use the network interface to communicate with the specified
destination.
Primary Destination (Ping Test): The primary, or first, destination to ping. The destination
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must be a valid IPv4 address. If the destination is remains empty, no Primary Destination
link test will be attempted.
Secondary Destination (Ping Test): The secondary, or second, destination to ping. The
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destination must be a valid IPv4 address. If the destination is remains empty, no Secondary
Destination link test will be attempted.
Send Count (Ping Test): The maximum number of ping requests to send for a ping link test.
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When a reply is received, the ping test ends successfully and does not continue to send ping
requests. If no ping reply is received after Send Count ping requests have been sent, the
link test ends in failure.
Send Interval (Ping Test): The time interval in seconds between sending ping requests
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during a ping link test. The ping tests sends a ping request. If no ping reply is received
before the Send Interval expires, another ping request is sent.
TCP Connection Test: Click the radio button to select the TCP Connection Test as the link
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test to use for this interface. The TCP Connection Test tries to establish a TCP connection
to the configured destination IP address and port number. If a connection is successfully
established, or if the remote host actively rejects (resets) the connection attempt, the link
test successfully demonstrated that you can use the network interface communicate with
the specified destination. If a TCP connection is successfully established, it is immediately
closed.
Primary TCP Port (TCP Connection Test): The destination TCP port to use to connect to
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the Primary Destination address.
Digi Connect WAN Family User Guide
Configuration through the web interface
58