Digi Connect WAN Series User Manual page 87

Digi Connect WAN Family web interface
Ping Test: Enables or disables the ability to use "ping" (ICMP) as a test to verify the integrity of
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the mobile connection. The test is successful if a valid ping reply is received in response to the
ping request sent. The ping test actually sends up to three ping requests, at three second
intervals, to test the link. When a valid reply is received, the test completes successfully and
immediately. If a reply is received for the first request sent, there is no need to send the other
two requests.
Two destination hosts may be configured for this test. If the first host fails to reply to all three
ping requests, the same test is attempted to the second host. If neither host replies to any of
the ping requests sent, the test fails. The primary and secondary addresses may be either IP
addresses or fully qualified domain names.
Primary Address: First host to test.
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Secondary Address: Second host to test (if the first host fails).
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TCP Connection Test: Enables or disables the creation of a new TCP connection as a test to
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verify the integrity of the mobile connection. The test is successful if a TCP connection is
established to a specified remote host and port number. If the remote host actively refuses the
connection request, the test is also considered to be successful, since that demonstrates
successful two-way communication over the mobile connection. The TCP connection test waits
up to 30 seconds for the connection to be established or refused. When the TCP connection is
established, the test completes successfully, and the TCP connection is closed immediately.
Two destination hosts may be configured for this test. If the first host fails to establish (or
refuse) the TCP connection, the same test is attempted to the second host. If neither host
successfully establishes (or refuses) the TCP connection, the test fails. The primary and
secondary addresses may be either IP addresses or fully qualified domain names.
TCP Port: The TCP port number to connect to on the remote host (default 80).
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Primary Address: The address of the first host to test.
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Secondary Address: The address of the second host to test (if the first host fails).
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Digi Connect WAN Family User Guide
Configuration through the web interface
87