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TD-8840 ADSL2+ Modem Router User Guide

)

Note:

a. If you change the IP Address of LAN, you must use the new IP Address to log in the

Router.

b. If the new LAN IP Address you set is not in the same subnet, the IP Address pool of the

DHCP server will change accordingly at the same time，while the Virtual Server and DMZ

Host will not take effect until they are re-configured.

¾ Disable/Enable DHCP Server - Disable or Enable the DHCP server. DHCP stands for

Dynamic Host Configuration Protocol. The DHCP Server will automatically assign dynamic IP

addresses to the computers on the network. If you disable the Server, you must have another

DHCP server within your network or else you must configure the computer manually. The

following options are available only when DHCP Server is enabled.

z Start IP Address - Specify an IP address for the DHCP Server to start with when

assigning IP addresses. 192.168.1.100 is the default start address

z End IP Address - Specify an IP address for the DHCP Server to end with when

assigning IP addresses. 192.168.1.199 is the default end address.

z Leased Time (hour) - The Lease Time is the amount of time a network user will be

allowed connection to the Router with their current dynamic IP address. Enter the

amount of time, in hours, and the user will be "leased" this dynamic IP address. After the

time is up, the user will be automatically assigned a new dynamic IP address. The

default value is 24 hours.

¾ Set Address Reservation - Click this button, you can view and add a reserved address for

clients via the Address Reservation page as shown in Figure 4-21. When you specify a

reserved IP address for a PC on the LAN, that PC will always receive the same IP address

each time when it accesses the DHCP server. Reserved IP addresses should be assigned to

servers that require permanent IP settings.

¾ Configure the second IP Address and Subnet Mask for LAN interface - Check this box,

and you can configure a second IP address and subnet mask for the LAN interface.

¾ Save - Clicking this button only saves the LAN configuration data.

¾ Save/Reboot - Clicking this button not only saves the LAN configuration data but also

reboots the Router to make the new configuration take effect.

To Reserve an IP address：

1. Click the Set Address Reservation button shown in Figure 4-21 to enter the screen as

shown in Figure 4-22.