TP-Link manual TD-W8960N Wireless N ADSL2+ Modem Router User Guide

TD-W8960N Wireless N ADSL2+ Modem Router User Guide

device may use IAID value 1 for the virtual circuit corresponding to the first connection object in the data model and value 2 for the second connection object in the data model.

•Option 61 DUID: Specifies the name of the interface whose link-layer address the server is to use as its DUID (DHCP Unique Identifier). You must enter a value for this parameter or the server will not start. When the server starts, the DUID is written to the system log.

•Option 125: The option 125 allows DHCP server to be pre-configured with policy for handling classes of devices in a certain way without requiring DHCP server to be able to parse the unique format used in client-identifier option.

¾Use the following IP Address: If you are provided with a static IP/gateway Address, please select this option, and then enter the WAN IP Address, WAN Subnet Mask and WAN gateway IP Address manually.

5.Click the Next button, and you will see the next screen as below. You can Enable the NAT, SPI Firewall, and IGMP Multicast, if you are not sure about the settings, just leave the default settings.

Figure 4-17

¾Enable NAT: This technology translates the IP addresses of a local area network to a different IP address for the Internet. If this 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 SPI Firewall: A SPI firewall enhances network’s security. Select the option to use a firewall, or else without a firewall.

¾Enable IGMP Multicast: This is disabled by default. This setting will not allow IGMP (Internet Group Management Protocol) packets to be forwarded to the LAN. IGMP is used to manage multicasting on TCP/IP networks. Most users will not need to enable this. Some ISPs use IGMP to perform remote configuration for client devices, such as the Router. If you are unsure, check with your ISP.

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