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Page 16 / 105 Scroll up to view Page 11 - 15
7
Chapter 2: Networking Basics
What is a VPN?
10/100 8-Port VPN Router
•VPN Router to VPN Router
•Computer (using VPN client software that supports IPSec) to VPN Router
The VPN Router creates a “tunnel” or channel between two endpoints, so that data transmissions between them
are secure. A computer with VPN client software that supports IPSec can be one of the two endpoints. Any
computer with the built-in IPSec Security Manager (Microsoft 2000 and XP) allows the VPN Router to create a VPN
tunnel using IPSec). Other versions of Microsoft operating systems require additional, third-party VPN client
software applications that support IPSec to be installed.
VPN Router to VPN Router
An example of a VPN Router-to-VPN Router VPN would be as follows. (See Figure 2-1.) At home, a telecommuter
uses his VPN Router for his always-on Internet connection. His router is configured with his office's VPN settings.
When he connects to his office's router, the two routers create a VPN tunnel, encrypting and decrypting data. As
VPNs utilize the Internet, distance is not a factor. Using the VPN, the telecommuter now has a secure connection
to the central office's network, as if he were physically connected.
Computer (using VPN client software that supports IPSec) to VPN Router
The following is an example of a computer-to-VPN Router VPN. (See Figure 2-2.) In her hotel room, a traveling
businesswoman dials up her ISP. Her notebook computer has VPN client software that is configured with her
office's VPN settings. She accesses the VPN client software that supports IPSec and connects to the VPN Router
at the central office. As VPNs utilize the Internet, distance is not a factor. Using the VPN, the businesswoman now
has a secure connection to the central office's network, as if she were physically connected.
For additional information and instructions about creating your own VPN, please visit Linksys’s website at
www.linksys.com.
Figure 2-2: Computer-to-VPN Router VPN
Figure 2-1: VPN Router-to-VPN Router VPN
Page 17 / 105
8
Chapter 3: Getting to Know the Router
The Front Panel
10/100 8-Port VPN Router
Chapter 3: Getting to Know the Router
The Front Panel
The Router’s LEDs, ports, and Reset button are located on the front panel of the Router.
Ports
1-8 (LAN)
These eight
LAN
(
Ethernet)
ports connect to network devices, such as PCs, print
servers, or additional switches.
DMZ/Internet (WAN2)
The
DMZ/Internet
port can be used in two different ways: a second Internet port, or
DMZ port. When used as an additional Internet port, it connects to a cable or DSL
modem. When used as a DMZ port, it connects to a hub, switch, or public server.
Internet (WAN1)
The
Internet
port connects to a cable or DSL modem.
LEDs
Diag
Red. The
Diag
LED lights up when the system is not ready. The LED goes off when the
system is ready.
System
Green. The
System
LED lights up when the Router is powered on. If the LED is flashing,
the Router is running a diagnostic test.
Figure 3-1: Front Panel
WAN1
LAN
WAN2
DMZ:
removes the Router's firewall protection from
one PC, allowing it to be “seen” from the Internet
Page 18 / 105
9
Chapter 3: Getting to Know the Router
The Back Panel
10/100 8-Port VPN Router
DMZ/Internet
Green. The
DMZ/Internet
LED lights up when the Router is connected to your cable or
DSL modem when used as an Internet port, and it lights up when the Router is
connected to the hub, switch, or public server when used as a DMZ port.
Internet
Green. The
Internet
LED lights up when the Router is connected to your cable or DSL
modem.
DMZ Mode
Green. The
DMZ Mode
LED lights up when the Router is using DMZ mode.
1-8 (LAN)
Green. The
LAN
LED serves two purposes. If the LED is continuously lit, the Router is
connected to a device through the corresponding port (1, 2, 3, 4, 5, 6, 7, or 8). If the LED
is flashing, the Router is actively sending or receiving data over that port.
Reset Button
The Reset button can be used in one of two ways:
If the Router is having problems connecting to the Internet, press the Reset button for
just a second with a paper clip or a pencil tip. This is similar to pressing the Reset
button on your PC to reboot it.
If you are experiencing extreme problems with the Router and have tried all other
troubleshooting measures, press and hold in the Reset button for 30 seconds. This will
restore the factory defaults and clear all of the Router’s settings, such as port
forwarding or a new password.
The Back Panel
The Router’s Power port is located on the back panel of the Router.
Power
The
Power
port is where you connect the AC power cord.
Proceed to “Chapter 4: Connecting the Router.”
Figure 3-2: Back Panel
Boot:
to start a device and cause it to
start executing instructions
Page 19 / 105
10
Chapter 4: Connecting the Router
Overview
10/100 8-Port VPN Router
Chapter 4: Connecting the Router
Overview
To set up your network, you will do the following:
•
Connect the Router to one of your PCs according to the instructions in this chapter.
•
If necessary, configure your PCs to obtain an IP address automatically from the Router, according to
“Appendix G: Windows Help”. (By default, Windows 98, 2000, Millennium, and XP computers are set to obtain
an IP address automatically, so unless you have changed the default setting, then you will not need to
configure your PCs.)
•
Set up and configure the Router with the setting(s) provided by your Internet Service Provider (ISP) according
to “Chapter 5: Setting up and Configuring the Router.”
The installation technician from your ISP should have left the setup information with you after installing your
broadband connection. If not, you can call your ISP to request the information. Once you have the setup
information for your specific type of Internet connection, then you can begin installation and setup of the Router.
10/100 8-Port
VPN Router
Notebook with
Ethernet Adapter
PC with Ethernet
Adapter
Cable or DSL
Modem
Figure 4-1: Example of a Typical Network
Broadband:
an always-on, fast Internet connection
Page 20 / 105
11
Chapter 4: Connecting the Router
Connection Instructions
10/100 8-Port VPN Router
Connection Instructions
1.
Before you begin, make sure that all of your hardware is powered off, including the Router, PCs, hubs,
switches, and cable or DSL modem.
2.
Connect one end of an Ethernet network cable to one of the numbered ports on the front of the Router.
Connect the other end to an Ethernet port on a network device, e.g., a PC, print server, hub, or switch.
Repeat this step to connect more PCs or other network devices to the Router.
3.
Connect your cable or DSL modem’s Ethernet cable to the Router’s Internet port. If using the DMZ/Internet
port, connect a second cable to it, and the other end to the network device, e.g., modem or public server.
4.
Power on the cable or DSL modem and the other network device if using one.
5.
Connect the included power adapter to the Router’s Power port on the back of the Router, as shown in Figure
4-4, and then plug the power adapter into an electrical outlet.
The System LED on the front panel will light up as soon as the power adapter is connected properly.
If you need to configure your PCs, proceed to “Appendix G: Windows Help.” Otherwise, proceed to
“Chapter 5: Setting Up and Configuring the Router.”
Figure 4-2: Connect a PC
Figure 4-3: Connect the Internet and DMZ/Internet
Figure 4-4: Connect the Power
Hardware:
the physical aspect of computers,
telecommunications, and other information technology devices

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