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Preparing Your Network
D-1
December 2003, M-10041-01
Appendix D
Preparing Your Network
This appendix describes how to prepare your network to connect to the Internet through the
FVS328 ProSafe VPN Firewall with Dial Back-up and how to verify the readiness of broadband
Internet service from an Internet service provider (ISP).
Preparing Your Computers for TCP/IP Networking
Computers access the Internet using a protocol called TCP/IP
(Transmission Control Protocol/
Internet Protocol
). Each computer on your network must have TCP/IP installed and selected as its
networking protocol. If a Network Interface Card
(NIC) is already installed in your PC, then TCP/
IP is probably already installed as well.
Most operating systems include the software components you need for networking with TCP/IP:
•
Windows
®
95 or later includes the software components for establishing a TCP/IP network.
•
Windows 3.1 does not include a TCP/IP component. You need to purchase a third-party TCP/
IP application package such as NetManage Chameleon.
•
Macintosh Operating System 7 or later includes the software components for establishing a
TCP/IP network.
•
All versions of UNIX® or Linux® include TCP/IP components. Follow the instructions
provided with your operating system or networking software to install TCP/IP on your
computer.
Note:
If an ISP technician configured your computer during the installation of a
broadband modem, or if you configured it using instructions provided by your ISP, you
may need to copy the current configuration information for use in the configuration of
your firewall. Write down this information before reconfiguring your computers. Refer
to
“Obtaining ISP Configuration Information for Windows Computers
” on
page D-10
or
“Obtaining ISP Configuration Information for Macintosh Computers
” on
page D-11
for
further information.
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Model FVS328 ProSafe VPN Firewall with Dial Back-up Reference Manual
D-2
Preparing Your Network
December 2003, M-10041-01
In your IP network, each PC and the firewall must be assigned a unique IP addresses. Each PC
must also have certain other IP configuration information such as a subnet mask (netmask), a
domain name server (DNS) address, and a default gateway address. In most cases, you should
install TCP/IP so that the PC obtains its specific network configuration information automatically
from a DHCP server during bootup. For a detailed explanation of the meaning and purpose of
these configuration items, refer to “
Appendix C, “Networks, Routing, and Firewall Basics
.”
The FVS328 Firewall is shipped preconfigured as a DHCP server. The firewall assigns the
following TCP/IP configuration information automatically when the computers are rebooted:
•
PC or workstation IP addresses—192.168.0.2 through 192.168.0.254
•
Subnet mask—255.255.255.0
•
Gateway address (the firewall)—192.168.0.1
These addresses are part of the IETF-designated private address range for use in private networks.
Configuring Windows 95, 98, and Me for TCP/IP Networking
As part of the PC preparation process, you need to manually install and configure TCP/IP on each
networked PC. Before starting, locate your Windows CD; you may need to insert it during the
TCP/IP installation process.
Install or Verify Windows Networking Components
To install or verify the necessary components for IP networking:
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, which displays a list of installed components:
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Model FVS328 ProSafe VPN Firewall with Dial Back-up Reference Manual
Preparing Your Network
D-3
December 2003, M-10041-01
You must have an Ethernet adapter, the TCP/IP protocol, and Client for Microsoft Networks.
If you need to install a new adapter, follow these steps:
a.
Click the Add button.
b.
Select Adapter, and then click Add.
c.
Select the manufacturer and model of your Ethernet adapter, and then click OK.
If you need TCP/IP:
a.
Click the Add button.
b.
Select Protocol, and then click Add.
c.
Select Microsoft.
d.
Select TCP/IP, and then click OK.
Note:
It is not necessary to remove any other network components shown in the
Network window in order to install the adapter, TCP/IP, or Client for Microsoft
Networks.
Page 154 / 224
Model FVS328 ProSafe VPN Firewall with Dial Back-up Reference Manual
D-4
Preparing Your Network
December 2003, M-10041-01
If you need Client for Microsoft Networks:
a.
Click the Add button.
b.
Select Client, and then click Add.
c.
Select Microsoft.
d.
Select Client for Microsoft Networks, and then click OK.
3.
Restart your PC for the changes to take effect.
Enabling DHCP to Automatically Configure TCP/IP Settings
After the TCP/IP protocol components are installed, each PC must be assigned specific
information about itself and resources that are available on its network. The simplest way to
configure this information is to allow the PC to obtain the information from the internal DHCP
server of the FVS328 Firewall. To use DHCP with the recommended default addresses, follow
these steps:
1.
Connect all computers to the firewall, then restart the firewall and allow it to boot.
2.
On each attached PC, open the Network control panel (refer to the previous section) and select
the Configuration tab.
3.
From the components list, select TCP/IP->(your Ethernet adapter) and click Properties.
4.
In the IP Address tab, select “Obtain an IP address automatically”.
5.
Select the Gateway tab.
6.
If any gateways are shown, remove them.
7.
Click OK.
8.
Restart the PC.
Repeat steps 2 through 8 for each PC on your network.
Selecting Windows’ Internet Access Method
1.
On the Windows taskbar, click the Start button, point to Settings, and then click Control Panel.
2.
Double-click the Internet Options icon.
3.
Select “I want to set up my Internet connection manually” or “I want to connect through a
Local Area Network” and click Next.
4.
Select “I want to connect through a Local Area Network” and click Next.
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Preparing Your Network
D-5
December 2003, M-10041-01
5.
Uncheck all boxes in the LAN Internet Configuration screen and click Next.
6.
Proceed to the end of the Wizard.
Verifying TCP/IP Properties
After your PC is configured and has rebooted, you can check the TCP/IP configuration using the
utility
winipcfg.exe
:
1.
On the Windows taskbar, click the Start button, and then click Run.
2.
Type
winipcfg
, and then click OK.
The IP Configuration window opens, which lists (among other things), your IP address, subnet
mask, and default gateway.
3.
From the drop-down box, select your Ethernet adapter.
The window 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 192.168.0.2 and 192.168.0.254
•
The subnet mask is 255.255.255.0
•
The default gateway is 192.168.0.1
Configuring Windows NT, 2000 or XP for IP Networking
As part of the PC preparation process, you need to manually install and configure TCP/IP on each
networked PC. Before starting, locate your Windows CD; you may need to insert it during the
TCP/IP installation process.
Installing or Verifying Windows Networking Components
To install or verify the necessary components for IP networking:
1.
On the Windows taskbar, click the Start button, point to Settings, and then click Control Panel.
2.
Double-click the Network and Dialup Connections icon.
3.
If an Ethernet adapter is present in your PC, you should see an entry for Local Area
Connection. Double-click that entry.
4.
Select Properties.

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