TP-Link TD-W9970 User Manual page 29

IPv6 Default Gateway:

gateway.
Click Advance, advanced selections for WAN Service Setup can be shown.
Service Name/Server Name:

your ISP. You can leave them blank, if the ISP doesn't provide them.
MTU (Bytes): Maximum Transmission Unit Size. Check this box then you can change the

MTU size. The default
default value unless required by your ISP.
Enable Fullcone NAT:

Enable SPI Firewall:

firewall, or else without a firewall.
Enable IGMP Proxy:

multicasting on TCP/IP networks. Some ISPs use IGMP to perform remote configuration for
client devices, such as the modem router. The default value is disabled, and if you are not
sure, please contact your ISP or just leave it.
Use IP address specified by ISP:

IP address provided by your ISP.
Echo request interval:

default value is 0. You can input the value between 0 and 120. The value 0 means no detect.
Set DNS Server manually:

The modem router will use this DNS Server for priority.
Use IPv6 address specified by ISP:

the IPv6 address provided by your ISP.
Set IPv6 DNS Server manually:

DNS Server manually here. The modem router will use this IPv6 DNS Server for priority.
Click Save to make the settings effective.
4) PPPoA
If your ISP provides a
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
Select a WAN connection from the drop-down list as the IPv6 default
Enter the Service Name and Server Name if it was provided by
MTU value is 1500 Bytes. It is not recommended that you change the
It is a type of NAT, if not enabled, the default NAT will act.
A SPI firewall enhances network's security. Select the option to use a
IGMP (Internet Group Management Protocol) is used to manage
Choose Use IP address specified by ISP, you can enter the
The router will detect Access Concentrator online at every interval. The
Choose this option, and you can set DNS Server manually here.
Choose Use IPv6 address specified by ISP, you can enter
Choose Set IPv6 DNS Server manually, you can set IPv6
PPPoA connection and you need to use an ATM Interface, choose
3) PPPoE
21
TD-W9970 User Guide
PPPoA
to configure this part.