DIR-878 AC1900 MU-MIMO Wi-Fi Gigabit Router
User Manual
Configuring via Web-based Interface
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On the Connections Setup / WAN Reservation page, you can enable the WAN backup
function, which provides you with uninterrupted access to the Internet. When your main connection
breaks down, the router activates the backup connection; and when the main channel is recovered,
the router switches to it and disconnects the reserve one.
Figure 79. The Connections Setup / WAN Reservation page.
To activate the backup function, create the main and the reserve WAN connections. After that go to
the Connections Setup / WAN Reservation page, move the Enable switch to the right, and
specify the needed values in the fields displayed on the page.
Parameter Description
Basic connection
From the drop-down list, select a WAN connection which will be
used as the main one.
Backup connection
From the drop-down list, select a WAN connection which will be
used as the reserve one.
Test host
An IP address that the router will check for availability via ICMP
ping mechanism.
Check interval
A time period (in seconds) between attempts to check the status of
the main connection. By default, the value 10 is specified.
Timeout check
A time period (in seconds) for an attempt to check the status of the
main connection. At the end of this period the router's internal
system makes a decision to enable/disable the reserve channel. By
default, the value 3 is specified.
Number of inspections
of active connection
A number of requests that will be sent in order to analyze the status
of the main connection when the connection is active (the router
uses the main connection as a default gateway).
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Weight and Dimensions
