Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624

C-14

Preparing Your Network

M-10153-01

• Highlight the TCP/IP Protocol in the

Network Protocols box, and click on the

Properties button.

Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624

Preparing Your Network

C-15

M-10153-01

Verifying TCP/IP Properties for Windows XP, 2000, and NT4

To check your PC’s TCP/IP configuration:

1.

On the Windows taskbar, click the Start button, and then click Run.

The Run window opens.

2.

Type

cmd

and then click OK.

A command window opens

3.

Type

ipconfig /all

Your IP Configuration information will be listed, and should match the values below if you are

using the default TCP/IP settings that NETGEAR recommends for connecting through a

router or gateway:

•

The IP address is between 192.168.1.2 and 192.168.1.254.

•

The subnet mask is 255.255.255.0.

• The TCP/IP Properties dialog box now

displays.

• Click the IP Address tab

.

• Select the radio button marked Obtain an IP

address from a DHCP server

.

• Click OK.

This completes the configuration

of TCP/IP in Windows NT.

Restart the PC.

Repeat these steps for each PC with this version

of Windows on your network.

Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624

C-16

Preparing Your Network

M-10153-01

•

The default gateway is 192.168.1.1.

4.

Type

exit.

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 will 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.

You can leave the DHCP Client ID box empty.

4.

Close the TCP/IP Control Panel.

5.

Repeat this for each Macintosh on your network.

Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624

Preparing Your Network

C-17

M-10153-01

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.

Verifying TCP/IP Properties for Macintosh Computers

After your Macintosh is configured and has rebooted, you can check the TCP/IP configuration by

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

The panel is updated to show your settings, which should match the values below if you are using

the default TCP/IP settings that NETGEAR recommends:

•

The IP Address is between 192.168.1.2 and 192.168.1.254

•

The Subnet mask is 255.255.255.0

•

The Router address is 192.168.1.1

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 back again to “Using DHCP Server”.

Reference Manual for the Double 108 Mbps Wireless Firewall Router WGU624

C-18

Preparing Your Network

M-10153-01

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 firewall 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 PC is first booted up while connected to the ISP, and you will not need to know that

dynamic information.

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

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

normally use. When the firewall’s Internet port is connected to the broadband modem, the firewall

appears to be a single PC to the ISP. The firewall then allows the PCs on the local network to

masquerade as the single PC to access the Internet through the broadband modem. The method

used by the firewall 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 PPP over Ethernet (PPPoE).

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

router’s configuration menus. After your network and firewall are configured, the firewall will

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

your PC. 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: