Using The N300 Wireless Modem Router As A Dhcp Server; Address Reservation - NETGEAR DGN3500 User Manual

N300 Wireless Gigabit ADSL2+ Modem Router DGN3500

Using the N300 Wireless Modem Router as a DHCP Server

By default, the wireless modem router functions as a DHCP server, allowing it to assign IP,
DNS server, and default gateway addresses to all computers connected to the wireless
modem router's LAN. The assigned default gateway address is the LAN address of the
wireless modem router. The wireless 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 wireless modem router
are satisfactory. Click the link to the online document
an explanation of DHCP and information about how to assign IP addresses for your network.
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 wireless
modem router's LAN IP address. Using the default addressing scheme, you should define a
range between 192.168.0.2 and 192.168.0.254, although you might wish to save part of the
range for devices with fixed addresses.
The wireless 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 wireless modem router's LAN IP address)
•
Primary DNS Server (if you entered a primary DNS address in the Basic Settings screen;
•
otherwise, the wireless 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 manually configure the
network settings of all of your computers, clear the Use Router as DHCP Server check box.
Otherwise, leave it selected. If this service is not selected and no other DHCP server is
available on your network, you will need to set your computers' IP addresses manually or
they will not be able to access the wireless modem router.

Address Reservation

When you specify a reserved IP address for a computer on the LAN, that computer always
receives the same IP address each time it accesses the wireless modem router's DHCP
server. Reserved IP addresses should be assigned to computers or servers that require
permanent IP settings.
To reserve an IP address:
Click Add.
1
In the IP Address field, type the IP address to assign to the computer or server. (Choose an
2
IP address from the wireless modem router's LAN subnet, such as 192.168.0.x.)
Related Documents
Advanced Configuration
65
in Appendix B for