DWR-921 4G LTE Router
User Manual
Configuring via Web-based Interface
Parameter Description
IPv6 (for the Dual and IPv6 types)
Obtain DNS server
addresses
automatically
Move the switch to the right to configure automatic assignment of
IPv6 DNS server addresses. Upon that the Primary IPv6 DNS
server and Secondary IPv6 DNS server fields are not available
for editing.
Primary IPv6 DNS
server / Secondary IPv6
DNS server
Enter addresses of the primary and secondary IPv6 DNS servers in
the relevant fields.
Figure 90. The page for creating a new Mobile Internet connection. The Health Check section.
Parameter Description
Health Check
Enable
Move the switch to the right to check the connection health using
the ICMP ping mechanism.
The maximum number
of attempts
A number of requests to check the health of the connection. By
default, the value 10 is specified.
Several ping requests are sent to check the hosts. After several
failed attempts the connection status is changed until a successful
attempt is made.
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