When Use the following DNS server address(es) is selected, you may enter
custom DNS server addresses for this WAN connection into the DNS Server 1
and DNS Server 2 fields.
9.1.3 PPPoE Connection
This connection method is suitable if your ISP provides a login ID/password to connect via
PPPoE.
NAT allows substituting the real address in a packet with a mapped address
that is routable on the destination network. By clicking the help icon in this
field, you can display the IP Forwarding option, if your network requires it.
Enter the required information in these fields in order to connect via PPPoE to
the ISP. The parameter values are determined by and can be obtained from
the ISP.
Verify your password by entering it again in this field.