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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.
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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.
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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.
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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.
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Page 10 / 52
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

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