TP-Link TD-W9980 User Manual page 33

TD-W9980
 MTU (bytes): Maximum Transmission Unit Size. Check this box then you can change the MTU
size. The default MTU value is 1500 Bytes. It is not recommended that you change the default
value unless required by your ISP.
 Enable NAT: This technology translates the IP addresses of a local area network to a different
IP address for the Internet. If this modem router is hosting your network's connection to the
Internet, please select the check box. If another Router exists in your network, you don't need
to select the option.
 Enable Fullcone NAT: It is a type of NAT, if not enabled, the default NAT will act.
 Enable SPI Firewall: A 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. The default value is disabled, and if you are not sure,
please contact your ISP or just leave it.
 Get IP with Unicast: This is disabled by default. The minority of DHCP Server of ISP will not
support to enable this. When the Route is connected right but IP cannot get, you can select
this box.
 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.
 Get IPv6 Address with Unicast: This is disabled by default. The minority of DHCPv6 Server
of ISP will not support to enable this. When the modem router is connected right but cannot
get IPv6 address, you can select this box.
 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.
 Host Name: Here displays model No. of your modem router.
Click the Save button to save the settings.
3) PPPoE
If your ISP provides a PPPoE connection and you need to use an ATM Interface, choose PPPoE
in the drop-down list, and then the screen will be displayed as below.
N600 Wireless Dual Band Gigabit VDSL2 Modem Router User Guide
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