D-Link Express Ethernetwork DI-704P Manuale utente

DI-704P

Ethernet Broadband Router

User’s Manual

(Please refer to the Quick Install Guide for installation instructions.)

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Table of Contents

Introduction..................................................................................................4

Functions and Features.........................................................................4

Introduction to Broadband Router Technology....................................6

Introduction to Firewalls ......................................................................6

Introduction to Local Area Networking ...............................................7

Introduction to Virtual Private Networking..........................................7

Contents of Package .....................................................................................9

Panel Layout...............................................................................................10

Installation Requirements...................................................................11

Network Settings ........................................................................................12

Configuring the Ethernet Broadband Router..............................................14

Start-up and Log in.............................................................................14

Device Information.............................................................................16

Useful Tools........................................................................................17

Setup ...................................................................................................18

DHCP Server ......................................................................................21

Virtual Server......................................................................................22

Special Applications ...........................................................................23

Access Control....................................................................................24

Miscellaneous Items ...........................................................................25

MAC Address Control........................................................................26

Configuring on Unix based Platforms................................................27

Appendix A: Resetting the System Password or the IP Address .............28

Appendix B TCP/IP Configuration for Windows 95/98 ..........................29

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B.1 Install TCP/IP Protocol into Your PC..........................................29

B.2 Set TCP/IP Protocol for Working with the DI-704P ...................31

Technical Specifications.............................................................................38

Contacting Technical Support ....................................................................40

D-Link Locations Worldwide.....................................................................41

Limited Warranty........................................................................................43

Registration.................................................................................................47

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Introduction

Congratulations on your purchase of this outstanding Broadband Router. The

DI-704P is specifically designed for Small Office and Home Office needs. It

provides a complete solution for Internet surfing and office resources sharing, and

it is easy to configure and operate for even non-technical users. Instructions for

installing and configuring the DI-704P can be found in the enclosed “Quick

Install Guide.” Before you install and use the DI-704P, please read this manual

carefully for more detailed information and to fully utilize its functions.

Functions and Features

lBroadband modem and IP sharing

Connects multiple computers to a broadband (cable or DSL) modem to

surf the Internet.

lAuto-sensing Ethernet Switch

Equipped with a 4-port auto-sensing Ethernet switch.

lVPN supported

Supports multiple PPTP sessions and allows you to setup VPN server

and VPN clients.

lPrinter sharing (Optional)

Embeds a print server to allow all of the networked computers to share

one printer.

lFirewall

All unwanted packets from outside intruders are blocked to protect your

network.

lDHCP server supported

All of the networked computers can retrieve TCP/IP settings

automatically from the DI-704P.

lWeb-based configuring

Configurable through any networked computer’s web browser using

Netscape or Internet Explorer.

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lAccess Control supported

Allows you to assign different access rights for different users.

lVirtual Server supported

Enables you to expose WWW, FTP and other services on your LAN to

be accessible to Internet users.

lUser-Definable Application Sensing Tunnel

User can define the attributes to support the special applications

requiring multiple connections, like Internet gaming, video conferencing,

Internet telephony and so on; then the DI-704P can sense the application

type and open a multi-port tunnel for it.

lDMZ Host supported

Allows a networked computer to be fully exposed to the Internet; this

function is used when the special “application-sensing tunnel feature”is

insufficient to allow an application to function correctly.

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Introduction to Broadband Router Technology

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.

The information that makes up the Internet gets moved around using routers.

When you click on a link on a web page, you send a request to a server to show

you the next page. The information that is sent and received from your computer

is moved from your computer to the server using routers. A router also determines

the best route that your information should follow to ensure that the information is

delivered properly.

A router controls the amount of data that is sent through your network by

eliminating information that should not be there. This provides security for the

computers connected to your router, because computers from the outside cannot

access or send information directly to any computer on your network. The router

determines which computer the information should be forwarded to and sends it.

If the information is not intended for any computer on your network, the data is

discarded. This keeps any unwanted or harmful information from accessing or

damaging your network.

Introduction to Firewalls

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 Intranets.

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.

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Introduction to Local Area Networking

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. ANIC 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.

Networks take some time in order to plan and implement correctly. There

are many ways to configure your network. You may want to take some time to

determine the best network set-up for your needs.

Introduction to Virtual Private Networking

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.

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Point-to-Point Tunneling Protocol (PPTP)

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.

IP Security (IPSec)

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.

-9-

Contents of Package

DI-704P Ethernet Broadband Router

Installation CD-ROM

Power cord and power adapter

CAT-5 UTP Fast Ethernet Cable

DIDI--704P704P

Ethernet BEthernet Broadband Routerroadband Router

-10-

PanelLayout

Front Panel

M1&M2 System status indicators, Orange

. M1 is flashed once per second to

indicate system is active. When system is busy, M2 is lighted.

WAN & LAN Ethernet port indicators, Green. The LED fl

ickers when the LAN or WAN

port is sending or receiving data.

Link/Act. Link status indicators, Green

. The LED flickers when the corresponding

port is sending or receiving data

10/100 10/100 status indicators, Green

. The LED flickers when the

corresponding port is transmitting or receiving data in 10 or 100Mbps.

Side Panel

RESET To reset system settings to factory defaults, please follow the steps:

1. Power off the device

2. Press the reset button and hold

3. Power on the device

4. Keep the button pressed about 5 seconds

5. Release the button

6. Watch the M1 and M2 LEDs, they will flash 8 times and then the

M1 will flash once per second

POWER Power port. Connect one end of your included power adapter to the

power port and the other end into your power outlet

Note: The included power adapter is DC 5V/1A. Using the wrong type of

power adapter may cause product damage.

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