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Arche r D9
AC1900 Wireless Dual Band Gigabit ADSL2+ Modem Router User Guide
Figure 4-6
Click Advance, advanced selections for WAN Service Setup can be shown.
MTU (bytes): The default M TU (Maximum Transmission Unit) value is 1500 Bytes. Do not
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.
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 IGM P Proxy: IG MP (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.
Get IP with Unicast: It is disabled by default. A few ISPs’ DHCP Servers do not support the
broadcast applications. When the modem router cannot get the IP address normally, you can
choose this option. (It is rarely required)
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 IPv 6 Addre ss with Unicast: It is disabled by default. A few ISPs’ DHCP Servers do not
support the broadcast applications. When the modem router cannot get the IPv6 address
normally, you can choose this option. (It is rarely required.)
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