Reference Manual for the Model CG814M Wireless Cable Modem Gateway
DHCP
By default, the gateway will function as a DHCP (Dynamic Host Configuration Protocol) server, allowing it to assign IP, DNS server, and default gateway addresses to all computers connected to the router's LAN. The assigned default gateway address is the LAN address of the gateway. IP addresses will be assigned to the attached PCs from a pool of addresses specified in this menu. 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 gateway are satisfactory. See “IP Configuration by DHCP” on page
Use router as DHCP server
If another device on your network will be the DHCP server, or if you will manually configure the network settings of all of your computers, select NO for the DHCP Server, otherwise leave Yes selected.
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 gateway’s LAN IP address. Using the default addressing scheme, you should define a range between 192.168.0.10 and 192.168.0.253. The range of IP addresses between 192.168.0.2 and 192.168.0.9 can be used for devices with fixed addresses.
The gateway will deliver the following parameters to any LAN device that requests DHCP:
•An IP Address from the range you have defined
•Subnet Mask
•Gateway IP Address is the gateway’s LAN IP address
•Primary DNS Server, if you entered a Primary DNS address in the Basic Settings menu; otherwise, the gateway’s LAN IP address
•Secondary DNS Server, if you entered a Secondary DNS address in the Basic Settings menu.
Note: The gateway implements a DNS Relay function. When it receives a DNS request on the LAN, it passes it to the DNS server specified on the WAN. It then relays the response back to the original requesting PC.
Managing Your Network |
