TP-Link TD-W8980 manual N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide

TD-W8980

N600 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide

Figure 4-6

Click Advance, advanced selections for WAN Service Setup can be shown.

¾MTU (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.

¾Enable 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.

¾Enable Fullcone NAT: It is a type of NAT, if not enabled, the default NAT will act.

¾Enable SPI Firewall: A SPI firewall enhances network’s security. Select the option to use a firewall, or else without a firewall.

¾Enable 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.

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