On Networks N300RM User Manual - Manual (Page 38)

Modem Router Setup
38
N300 WiFi ADSL2+ Modem Router (N300RM)
Use Router as a DHCP Server
This check box is selected by default so that the modem router functions as a Dynamic Host
Configuration Protocol (DHCP) server.
• Starting IP Address
. Specify the start of the range for the pool of IP addresses in the
same subnet as the modem router.
• Ending IP Address . Specify the end of the range for the pool of IP addresses in the
same subnet as the modem router.
Address Reservation
When you specify a reserved IP address for a computer on the LAN, that computer receives
the same IP address each time it accesses the modem router’s DHCP server. Assign
reserved IP addresses to servers that require permanent IP settings.
Use the Modem Router as a DHCP Server
By default, the modem router acts as a DHCP server. The router assigns IP, DNS server, and
default gateway addresses to all computers connected to the LAN. The assigned default
gateway address is the LAN address of the modem router. The modem router assigns IP
addresses to the attached computers from a pool of addresses specified in this screen. Each
pool address is tested before it is assigned to avoid duplicate addresses on the LAN. For
most applications, the default DHCP and TCP/IP settings of the modem router are
satisfactory.
You can specify the pool of IP addresses to be assigned by setting the starting IP address
and ending IP address. These addresses should be part of the same IP address subnet as
the modem router’s LAN IP address. Using the default addressing scheme, define a range
between 192.168.0.2 and 192.168.0.254, although you might want to save part of the range
for devices with fixed addresses.
The modem router delivers the following parameters to any LAN device that requests DHCP:
• An IP address from the range you have defined
• Subnet mask
• Gateway IP address (the modem router’s LAN IP address)
• Primary DNS server (if you entered a primary DNS address in the Basic Settings screen;
otherwise, the modem router’s LAN IP address)
• Secondary DNS server (if you entered a secondary DNS address in the Basic Settings
screen)
To use another device on your network as the DHCP server, or to specify the network
settings of all of your computers, clear the Use Router as DHCP Server check box and click
Apply
. Otherwise, leave this check box selected. If this service is not enabled and no other
DHCP server is available on your network, set your computers’ IP addresses manually or
they will not be able to access the modem router.