Reference Manual for the Model CG814M Wireless Cable Modem Gateway

Connecting the Gateway to the Internet

2-11

Connecting the CG814M Gateway to the Internet

The gateway is now properly attached to your network. You are ready to configure your gateway

to connect to the Internet. To continue installation, click on the

Basic Settings

menu, shown in

Figure 2-5

..

Figure 2-5:

Browser-based configuration Basic Settings menu

Unless your ISP assigns your configuration automatically via DHCP, you will need the

configuration parameters from your ISP you recorded in

“Record Your Internet Connection

Information” on page 2-4

.

Configuration

1.

Your current WAN IP address is shown on this page.

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Reference Manual for the Model CG814M Wireless Cable Modem Gateway

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Connecting the Gateway to the Internet

If you have set your configuration for Dynamic IP, below, then an IP address shown here is an

indication that you have successfully received an IP address from your service provider.

If you have set your configuration to Static IP, below, then the IP address you entered will be

shown here.

For Dynamic IP, the Duration and time of Expiration of the IP address are shown. The IP

address is renewed automatically using DHCP.

2.

Enter your Host Name and Domain Name.

These parameters may be necessary to access your ISP’s services such as mail or news servers.

3.

Select Dynamic or Static IP Address:

If your service provider assigns your IP address automatically through DHCP, select

“Dynamic IP”. If your service provider has assigned you a permanent, fixed (static) IP address

for your PC, select “Static IP”.

If you select Static IP, enter the IP address that your ISP assigned. Also enter the Static IP

Mask (also known as netmask), Gateway IP address and Domain Name Server (DNS)

Addresss.

The Gateway is the ISP’s router to which your gateway will connect.

A DNS server is a host on the Internet that translates Internet names (such as

www.netgear.com) to numeric IP addresses. Typically your ISP transfers the IP address of

one or two DNS servers to your gateway during login. If the ISP does not transfer an

address, you must obtain it from the ISP and enter it manually here. If you enter an address

here, you should reboot your PCs after configuring the gateway.

4.

Cable MAC Address:

Device MAC Address

This section indicates the Cable and Device MAC Address settings of your gateway. If you

have existing cable internet service and are replacing your cable modem you may need to

notify your cable service provider of the Cable MAC Address and/or Device MAC Address of

your gateway in order to obtain service. The CG814M Gateway appears to your service

provider to be a cable modem with a single PC connected to it. The Cable Address is the

equivalent of the cable modem. The Device Address is the equivalent of the PC behind the

cable modem, and can be “cloned”. Cloning allows you to specify the MAC address of the

packets the gateway sends to the internet. If you clone the MAC Address of your PC you will

not have to register the Device Address of your gateway.

To change the Device MAC Address that is used to send traffic to the internet, enter the MAC

address you would like to use in the “Cloned MAC Address” field and check the Enable box.

The MAC Address that is entered by default is the MAC Address of the PC that is accessing

the gateway’s web interface.

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Reference Manual for the Model CG814M Wireless Cable Modem Gateway

Connecting the Gateway to the Internet

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5.

Firewall Protection:

Normally firewall protection should be enabled to protect your network from attacks from the

internet. Removing the check from the “Firewall Protection” box disables your firewall.

6.

Click Apply to save your settings.

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Reference Manual for the Model CG814M Wireless Cable Modem Gateway

Wireless Configuration

3-1

Chapter 3

Wireless Configuration

This chapter describes how to configure the wireless features of your CG814M Wireless Cable

Modem Gateway.

Considerations For A Wireless Network

In planning your wireless network, you should consider the level of security required. You should

also select the physical placement of your gateway in order to maximize the network speed. For

further information on wireless networking, refer to “

Wireless Networking

” in

Appendix B,

"Networks, Routing, and Firewall Basics"

.”

Security

Unlike wired network data, your wireless data transmissions can extend beyond your walls and

can be received by anyone with a compatible adapter. For this reason, NETGEAR strongly

recommends that you make use of the security features of your wireless equipment. As a minimum

security precaution, you should change the SSID setting of all devices on your network from the

factory setting to a unique password. Restricting access by MAC address filtering adds another

obstacle against unwanted hosts joining your network. To hinder a determined eavesdropper, you

should enable Wired Equivalent Privacy (WEP) data encryption.

Note:

If you are configuring the gateway from a wireless PC and you change the

gateway’s SSID, channel, or WEP settings, you will lose your wireless connection when

you click on Apply. You must then change the wireless settings of your PC to match the

gateway’s new settings.

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