User's Manual

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The Maximum Idle Time feature can control the connection time while
users need to save the cost of connection fee from ISP provider (default
time=0, always connect). Click on the Connect-on-demand button to dial
up to the ISP when only on demand, while there is a need of connecting to
the ISP automatically.
1-4 DNS
The Domain Name System (DNS) is the way that Internet domain names
are located and translated into Internet Protocol (IP) addresses.
If your ISP provided at least one DNS Server IP Address, type that IP
Address in the Primary DNS address fields. You can type up to another
DNS Server IP Addresses. The Router will utilize these for quicker access
to functioning DNS Servers.