TP-Link Archer D9 User Manual page 36

Archer D9 AC1900 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide
Connect on demand: This mode is dependent on the traffic. If there is no traffic (or Idle) for a

pre-specified period of time (MAX Idle Time), the connection will drop down automatically.
And once there is a request for Internet connection, it will be on automatically.
Connect Manually: You can manually control the status of a connection. This mode also

supports the Max Idle Time function as Connect on Demand mode. The Internet connection
can be disconnected automatically after a specified inactivity period and re-established when
you attempt to access the Internet again.
Authentication Type: Select the Authentication Type from the drop-down list, the default

method is AUTO_AUTH, and you can leave it as a default setting.
Enable IPv4: Check this box to enable IPv4.
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Enable IPv6: Check this box to enable IPv6.
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Default Gateway: Select a WAN connection from the drop-down list as the IPv4 default

gateway.
IPv6 Default Gateway: Select a WAN connection from the drop-down list as the IPv6 default

gateway.
Click Advance, advanced selections for WAN Service Setup can be shown.
Service Name/Server Name: Enter the Service Name and Server Name if it was provided by

your ISP. You can leave them blank, if the ISP doesn't provide them.
MTU (bytes): The default MTU (Maximum Transmission Unit) value is 1480 Bytes. Do not

change the default value unless required by your ISP.
Enable Fullcone NAT: It is a type of NAT, if not enabled, the default NAT will act.

Enable SPI Firewall: The SPI firewall enhances network's security. Select the option to use a

firewall, or else without a firewall.
Enable IGMP Proxy: IGMP (Internet Group Management Protocol) is used to manage

multicasting on TCP/IP networks. Some ISPs use IGMP to perform remote configuration for
client devices, such as the modem router. It is enabled by default.
Use IP address specified by ISP: Select this option and enter the IP address provided by

your ISP.
Set DNS Server manually: Choose "Set DNS Server manually", you can set DNS Server

manually here. The modem router will use this DNS Server for priority.
Use IPv6 address specified by ISP: Choose "Use IPv6 address specified by ISP", you can

enter the IPv6 address provided by your ISP.
Set IPv6 DNS Server manually: Choose "Set IPv6 DNS Server manually", you can set IPv6

DNS Server manually here. The modem router will use this IPv6 DNS Server for priority.
Click the Save button to save the settings.
4.5.1.4 PPPoA
If your ISP provides a PPPoA connection and you need to use an ATM Interface, choose PPPoA
in the drop-down list, and then the screen will be displayed as below.
The configuration is similar to PPPoE. Please refer to the section
part.
4.5.1.3 PPPoE
25
to configure this