D-Link DWR-921 User Manual page 126

DWR-921 4G LTE Router
User Manual
In the Check with ping section, specify settings of checking the connection using ICMP ping
mechanism.
Parameter
Interval between checks
Waiting for response
Number of attempts
Hosts
When all needed settings are configured, click the APPLY button.
Check with ping
A time period (in seconds) between regular checks of the hosts'
availability. By default, the value 30 is specified. The value of this
field should be higher than product of Waiting for response and
Number of attempts fields values.
Several ping requests are sent to check the hosts. After a successful
attempt the router keeps using the main connection. After several
failed attempts the next connection from the list is enabled.
A time period (in seconds) allocated for a response to one ping
request.
A number of failed attempts to check the health of a connection after
which the next connection from the list is enabled.
External IP addresses that the router will check for availability via
ICMP ping mechanism.
Click the ADD HOST button, and in the line displayed, enter an IP
address or leave values suggested by the router.
To remove an IP address from the list, click the Delete icon ( ) in
the line of the address.
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Configuring via Web-based Interface
Description