6

1.3 Package Content

• One 4 Port Internet Broadband Router

• One Power adapter

• One

CD-ROM

• One set of Bracket

• Quick Install Guide

1.4 Glossary

•

LAN – Local Area Network

Local Area Networking

(LAN)

is the term used when connecting several computers together over a

small area such as a building or group of buildings. LAN's can be connected over large areas. A collection

of LAN's connected over a large area is called a Wide Area Network

(WAN).

A

LAN

consists of multiple computers connected to each other. There are many types of media

that can connect computers together. The most common media is

CAT5 cable (UTP or STP

twisted pair wire.)

On the other hand, wireless networks do not use wires; instead they

communicate over radio waves. Each computer must have a

Network Interface Card (NIC),

which communicates the data between computers. A

NIC

is usually a 10Mbps network card, or

10/100Mbps network card, or a wireless network card.

Most networks use hardware devices such as hubs or switches that each cable can be connected

to in order to continue the connection between computers. A hub simply takes any data arriving

through

each port and forwards the data

to all other ports. A switch is more sophisticated, in that a

switch can determine the destination port for

a specific piece of

data. A switch minimizes

network traffic overhead and speeds up the communication over a network.

•

What is Router?

A router is a device that forwards data packets from a source to a destination. Routers forward

data packets using

IP addresses

and not a

MAC

address. A router will forward data from the

Internet to a particular computer on your

LAN

. A router also determines the best route that data

packets should follow to ensure that the data packets are delivered properly.

•

Firewall

A firewall is

a device

that sits between your computer and the Internet that prevents unauthorized

access to or from your network. A firewall can be a computer using firewall software or a special

piece of hardware built specifically to act as a firewall. In most circumstances, a firewall is used

to prevent unauthorized Internet users from accessing private networks or corporate

LAN's and

Internet.

7

A firewall watches all of the information moving to and from your network and analyzes

each

piece of data

. Each piece of data is checked against a set of criteria that the administrator

configures. If any data does not meet the criteria, that data is blocked and discarded. If the data

meets the criteria, the data is passed through. This method is called packet filtering.

A firewall can also run specific security functions based on the type of application or type of port

that is being used. For example, a firewall can be configured to work with an

FTP or Telnet

server. Or a firewall can be configured to work with specific

UDP or TCP

ports to allow

certain

applications or games to work properly over the Internet.

•

VPN – Virtual Private Network

Virtual Private Networking (VPN)

uses a publicly wired network

(the Internet)

to securely

connect two different networks as if they were the same network. For example, an employee can

access the corporate network from home using

VPN

, allowing the employee to access files and

printers. Here are several different implementations of

VPN

that can be used.

•

PPTP – Point-to-Point Tunneling Protocol

PPTP uses proprietary means of connecting two private networks over the Internet.

PPTP

is a

way of securing the information that is communicated between networks.

PPTP

secures

information by encrypting the data inside of a packet.

•

IPSec – IP Security

IPSec provides a more secure network-to-network connection across the Internet or a

Wide Area

Network (WAN)

.

IPSec

encrypts all communication between the client and server whereas

PPTP

only

encrypts the data packets. Both of these

VPN

implementations are used because there is not a standard for

VPN

server software. Because of this, each

ISP

or business can implement its own

VPN

network making

interoperability a challenge.

•

DHCP – Dynamic Host Configuration Protocol

DHCP is a protocol for dynamically assigning IP addresses to networked computers. With

DHCP,

a

computer can automatically be given a unique IP address each time it connects to

a network-

-making IP address

management an easier task for network administrators. When a computer logs on to

the network, the

DHCP

server selects an

IP address

from a master list and assigns it to the system.

•

NAT – Network Address Translation200.

For a computer to communicate with other computers on the Internet, it must have an

IP address.

An

IP (Internet Protocol)

address is a unique

32-bit number

that identifies the location of your

computer on a network. However, with the explosion of the Internet, the number of available

IP

addresses

are simply not enough.

8

This is where NAT comes to the rescue. Network Address Translation allows a single device,

such as a router, to act as an agent between the Internet

(or "public network")

and a local

(or

"private")

network. This means that only a single, unique

IP address

is required to represent an

entire group of computers.

•

Printer Server

Printer Server allow networked

PC

sharing the same printer on the network, only the networked

PC has printer driver without physical connection directly with printer.

•

DDNS – Dynamic Domain Name System Server

Domain Name System Server is a server that matches

URLs (such as www.router-net.com)

to

numeric IP addresses.

DDNS

•

TCP/IP

Transmission Control Protocol (TCP)

with

Internet Protocol (IP).

The main internetworking

protocol used in the Internet.

•

PPPoE – PPP (Point-to-Point Protocol) over Ethernet

PPP

is the standard Internet protocol for dial-up connections.

PPPoE

is for connecting remote

hosts to the Internet over an always-on connection by simulating a dial-up connection.

•

UDP – User Datagram Protocol

UDP

provides a procedure for application programs to send messages to other programs with a

minimum of protocol mechanism. The protocol is transaction oriented, and

delivery and duplicate

protection is not guaranteed. Applications requiring ordered reliable delivery of streams of data

should use the

TCP

.

•

DMZ Host– De-Militarized Zone Host

DMZ is the portion of a private network that is visible through the network's firewalls. DMZ

Host allows a local computer exposed to the Internet. Therefore, an incoming packet will be

checked by

Firewall and NAT

algorithms in the router, then pass to the

DMZ

host when packet is

not sent by hacker and is not limited by Virtual Server list. Besides, there are some IP protocols

that does not have port number information. There is no way to use Virtual Server setting to

forward incoming packet. Thus,

DMZ

host is the way to forward such kind of packets. If you try

to enable

DMZ

host and setup Virtual Server, the precedence is Virtual Server and then

DMZ.

For example, the incoming packet will be checked with Firewall rules, Virtual Server rules and

then

DMZ

host.

2. Hardware Installation

2.1 Product Description

This Router with two type of housing, plastic and metal, is easy to install. With its

Diagnostic

LEDs

, you could easily do trouble-shooting and get status information.

2.1.1 Front Side

2.1.2 LEDs

The LEDs are explained in the following tables.

LED

LED Activity

Power

Lights to indicate the router has power.

Link/Act.

for

1~4 LAN Port

and WAN Port

1. Lights to indicate a functional network link through the corresponding

port (1 through 4 and WAN) with an attached device. 2. Blinks to indicate

that the router is actively sending or receiving data over that port.

Link/Act.

for

USB Printer

Port

1. Lights to indicate a functional USB Printer Port link through the

correspond 2. Blinks to indicate that the printer is actively sending or

receiving data over that port.

9

2.1.3 Rear Panel

The following graphic shows the rear panel.

•

AC In

:

To connect the adapter to receive power.

•

USB

:

This is USB Printer Port to connect your USB printer via USB cable. Please note

that

“DO NOT”

connect any other USB devices except USB printer or the

“Self-Power

USB Hub”

to the USB port.

•

WAN

:

To connect the Cabel/DSL modem via

Cat.5 RJ-45 cable.

•

LAN 1~4

:

To connect networked

PC or uplink to Switch or Hub.

•

Reset

: Pressing the Reset button for more than

3 seconds,

the router will restore to

factory default setting. Please note that this should be done only when you had tried all

the troubleshooting options. Pressing the Reset button during operation may bring you

into the risk of creating

IP address

conflict between your

PC

and the router. In such a

case, you may be compelled to reboot your entire system.

2.2 Getting Started

Please refer to the following sections of this manual for additional information

about

setting up

a network.

2.2.1 System Requirement

Before you getting started, make sure that you meet the following requirements.

1.

1. An Internet connection through a cable or DSL modem

2.

2. A computer with an Ethernet network card installed

3. Your

Windows CD

, if your computer is running

Windows 95, 98, or ME

4. UTP network cable with

RJ-45

connector

5. Either Microsoft Internet Explorer

4.0 (or above version) or Netscape Navigator

4.0 (or above version)

10