User's Manual

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DNS (Domain Name System) servers to be used when a DNS lookup is routed
through this
connection.
Selecting Obtain DNS server address automatically results in the DNS
servers assigned
by the PPPoE server to be used for outbound DNS lookups over the WAN
connection.
(The DNS servers are obtained along with the WAN IP address assigned from
the PPPoE
server.)
When Use the following DNS server address(es) is selected, you can enter
custom DNS server addresses for this WAN connection into the DNS server 1
and DNS server 2 fields.
9.2 Cellular WAN
To access cellular WAN settings, click Network>WAN>Details.