Specifications

TD-W8151N 150Mbps Wireless N ADSL2+ Modem Router User Guide
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• Multicast: Select IGMP version, or disable the function. IGMP (Internet Group Multicast
Protocol) is a session-layer protocol used to establish membership in a multicast group.
The ADSL ATU-R supports IGMP version 1 (IGMP v1), IGMP v2 and IGMP v3. Select
“Disabled” to disable it.
• IGMP Snoop: Enable the IGMP Snoop function if you need.
• MldSnoop: Enable the MldSnoop function if you need.
 DHCP: Select Enabled, then you will see the screen below (shown in Figure 4-16). The
Router will work as a DHCP Server; it becomes the default gateway for DHCP client
connected to it. DHCP stands for Dynamic Host Control Protocol. The DHCP Server gives out
IP addresses when a device is booting up and request an IP address to be logged on to the
network. That device must be set as a DHCP client to obtain the IP address automatically. By
default, the DHCP Server is enabled. The DHCP address pool contains the range of the IP
address that will automatically be assigned to the clients on the network.
Figure 4-16
• Starting IP Address: Enter the starting IP address for the DHCP server's IP assignment.
The default Start IP Address is 192.168.1.100.
• IP Pool Count: The max user pool size.
• Lease Time: The length of time for the IP lease. After the dynamic IP address has
expired, the user will be automatically assigned a new dynamic IP address. The default is
259200 seconds.
• Physical Ports: Specify the Physical Ports of the DHCP client.
 DHCP Table: The information of the DHCP clients will be displayed here