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Preparing Your Network to Work with a Router

Configuring the Macintosh for TCP/IP Networking

Beginning with Macintosh Operating System 7, TCP/IP is already installed on the Macintosh. On

each networked Macintosh, you need to configure TCP/IP to use DHCP.

MacOS 8.6 or 9.x

1.

From the Apple menu, select Control

Panels, then TCP/IP.

The TCP/IP Control Panel opens.

2.

From the Connect via box, select your

Macintosh’s Ethernet interface.

3.

From the Configure box, select

“Using DHCP Server”.

4.

You can leave the DHCP Client ID box

empty.

5.

Close the TCP/IP Control Panel.

6.

Repeat this for each Macintosh on your

network.

MacOS X

1.

From the Apple menu, choose System Preferences, then Network.

2.

If not already selected, select “Built-in Ethernet” in the Configure list.

3.

If not already selected, select “Using DHCP” in the TCP/IP tab.

4.

Click Save.

Reference Manual for the Wireless Cable Modem Gateway CG814WG v2

Preparing Your Network to Work with a Router

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Verifying TCP/IP Properties for Macintosh Computers

To check the TCP/IP configuration after

you configured and rebooted your

Macintosh, return to the TCP/IP Control

Panel. From the Apple menu, select

Control Panels, then TCP/IP.

The panel is updated to show your settings.

They should match the values in the chart

below if you are using the default TCP/IP

settings that NETGEAR recommends.

If you do not see these values, you may

need to restart your Macintosh or you may

need to switch the

Configure

setting to a

different option, then switch back again to

Using DHCP Server

.

Verifying the Readiness of Your Internet Account

For broadband access to the Internet, you need to contract with an Internet service provider (ISP)

for a single-user Internet access account using a cable modem or DSL modem. This modem must

be a separate physical box (not a card) and must provide an Ethernet port intended for connection

to a Network Interface Card (NIC) in a computer. Your router does not support a USB-connected

broadband modem.

For a single-user Internet account, your ISP supplies TCP/IP configuration information for one

computer. With a typical account, much of the configuration information is dynamically assigned

when your computer is first booted up while connected to the ISP, and you will not need to know

that dynamic information.

TCP/IP Configuration

Current NETGEAR Standard

Previous NETGEAR Standard

Computer or workstation

IP Address

192.168.1.2 through

192.168.1.254

192.168.0.2 through

192.168.0.254

Subnet mask

255.255.255.0

255.255.255.0

Gateway address for router

192.168.1.1 default address

192.168.0.1 default address

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Preparing Your Network to Work with a Router

In order to share the Internet connection among several computers, your router takes the place of

the single computer, and you need to configure it with the TCP/IP information that the single

computer would normally use. When the router’s Internet port is connected to the broadband

modem, the router appears to be a single computer to the ISP. The router then allows the computers

on the local network to masquerade as the single computer to access the Internet through the

broadband modem. The method used by the router to accomplish this is called Network Address

Translation (NAT) or IP masquerading.

Are Login Protocols Used?

Some ISPs require a special login protocol, in which you must enter a login name and password in

order to access the Internet. If you normally log in to your Internet account by running a program

such as WinPOET or EnterNet, then your account uses Point-to-Point Protocol over Ethernet

(PPPoE).

When you configure your router, you need to enter your login name and password in the router’s

configuration menus. After your network and router are configured, the router will perform the

login task when needed, and you will no longer need to run the login program from your computer.

It is not necessary to uninstall the login program.

What Is Your Configuration Information?

More and more, ISPs are dynamically assigning configuration information. However, if your ISP

does not dynamically assign configuration information but instead used fixed configurations, your

ISP should have given you the following basic information for your account:

•

An IP address and subnet mask

•

A gateway IP address, which is the address of the ISP’s router

•

One or more domain name server (DNS) IP addresses

•

Host name and domain suffix

For example, your account’s full server names may look like this:

mail.xxx.yyy.com

In this example, the domain suffix is xxx.yyy.com.

If any of these items are dynamically supplied by the ISP, your router automatically acquires them.

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If an ISP technician configured your computer during the installation of the broadband modem, or

if you configured it using instructions provided by your ISP, you need to copy the configuration

information from your computer’s Network TCP/IP Properties window or Macintosh TCP/IP

Control Panel before reconfiguring your computer for use with the router. These procedures are

described next.

Obtaining ISP Configuration Information for Windows Computers

You may need configuration information from your computer in order to configure the router. You

only need to collect this information if you have a static IP address (your ISP does not dynamically

supply the account information).

To get the information you need to configure the router for Internet access follow the steps below.

The selections vary somewhat according to which version of Windows you are running.

1.

On the Windows taskbar, click the Start button, point to Settings, and then click Control Panel.

2.

Double-click the Network icon.

The Network window opens and displays a list of installed components.

3.

Select TCP/IP, and then click Properties.

The TCP/IP Properties dialog box opens.

4.

Select the IP Address tab.

If an IP address and subnet mask are shown, write down the information. If an address is

present, your account uses a fixed (static) IP address. If no address is present, your account

uses a dynamically-assigned IP address. Click

Obtain an IP address automatically

.

5.

Select the Gateway tab.

If an IP address appears under Installed Gateways, write down the address. This is the ISP’s

gateway address. Select the address and then click Remove to remove the gateway address.

6.

Select the DNS Configuration tab.

If any DNS server addresses are shown, write down the addresses. If any information appears

in the Host or Domain information box, write it down. Click Disable DNS.

7.

Click OK to save your changes and close the TCP/IP Properties dialog box.

You are returned to the Network window.

8.

Click OK.

9.

Reboot your computer at the prompt. You may also be prompted to insert your Windows CD.

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Preparing Your Network to Work with a Router

Obtaining ISP Configuration Information for Macintosh

Computers

You may need configuration information from your computer in order to configure the router. You

only need to collect this information if you have a static IP address (your ISP does not dynamically

supply the account information).

To get the information you need to configure the router for Internet access:

1.

From the Apple menu, select Control Panels, then TCP/IP.

The TCP/IP Control Panel opens, and displays a list of configuration settings. If the

“Configure” setting is

Using DHCP Server

, your account uses a dynamically-assigned IP

address. In this case, close the Control Panel and skip the rest of this section.

2.

If an IP address and subnet mask are shown, write down the information.

3.

If an IP address appears under Router address, write down the address. This is the ISP’s

gateway address.

4.

If any Name Server addresses are shown, write down the addresses. These are your ISP’s DNS

addresses.

5.

If any information appears in the Search domains information box, write it down.

6.

Change the Configure setting to

Using DHCP Server

.

7.

Close the TCP/IP Control Panel.

Restarting the Network

Once you have set up your computers to work with the router, you must reset the network for the

devices to be able to communicate correctly. Restart any computer that is connected to the router.

After you configure all of your computers for TCP/IP networking, restart them, and connect them

to the local network of your router. Then you are ready to access and configure the router.