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.