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TD-8816 ADSL2+ Modem Router User Guide
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function. Both means the ADSL modem router will periodically send routing information
and accept routing information, and then incorporate them into routing table. IN only
means the ADSL modem router will only accept but will not send RIP packet. OUT only
means the ADSL modem router will only send but will not accept RIP packet.
• 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 version 2 (IGMP v2) and
IGMP version 3 (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.
¾ DHCP: Select Enabled, then you will see the screen below (shown in Figure 4-16). The
modem 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.
Because the default IP address for the modem router is 192.168.1.1, the default Starting
IP Address is 192.168.1.100, and the Start IP Address must be 192.168.1.2 or greater,
but smaller than 192.168.1.254.
• Current Pool Summary: Click the button, you can view the IP addresses that the DHCP
Server gives out.