D-Link Air Xpert DI-774 Manual de usuario

2.4 GHz / 5 GHz Tri-Mode Dualband

Manual

Building Networks for People

D-LinkAir Xpert DI-774

Wireless Router

Contents

PackageContents ................................................................................3

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

Connections..........................................................................................5

Features ...............................................................................................6

LEDs ....................................................................................................7

Wireless Basics....................................................................................8

GettingStarted....................................................................................10

UsingtheConfigurationMenu..............................................................11

NetworkingBasics ..............................................................................40

Troubleshooting...................................................................................55

TechnicalSpecifications ......................................................................61

FrequentlyAskedQuestions................................................................64

ContactingTechnical Support ..............................................................92

Warranty andRegistration ...................................................................93

Contents of Package:

D-Link Air Xpert DI-774 2.4GHz/5GHz Tri-Mode Dualband

Wireless Router

PowerAdapter – 5V DC, 3.0A

ManualonCD

QuickInstallation Guide

Ethernet Cable

Package Contents

Computer with Windows, Macintosh, or Linux-based

operating system with an installed Ethernet adapter

Note:Using a powersupply withadifferent voltagerating than theone includedwith the

DI-774will causedamageand voidthe warrantyfor this product.

If any of the above items are missing, please contact your reseller.

System Requirements For Configuration:

Introduction

Atup tofivetimes thespeed ofprevious wirelessdevices,you canwork fasterand more

efficiently,increasing productivity. Withthe DI-774,bandwidth-intensiveapplicationslike

graphics or multimedia will benefit significantly because large files are able to move

across the network quickly. This versatile wireless router also features four times the

numberof non-overlapping channelsthan a devicethat supportsonly 802.11g, somore

users can access the network.

Supportforall three standards(802.11g; 802.11a; 802.11b) means thatyoucan grow

yournetworkwithout havingtoworryabout legacywirelessequipment beingincompatible

with newer compliant devices from other manufacturers. This also allows network

administratorstopartition the usageof the dualbandbysegmenting users andcreating

specialaccess privilegenetworks forclassified documenttransferand communications.

With the DI-774 you can securely connect to wireless clients on the network using

802.1x for wireless user authentication, as well as WPA (Wi-Fi Protected Access )

providingyoua much higherlevelof security foryourdata and communicationsthan

haspreviously beenavailable.

Through its easy-to-use Web-based user interface, the DI-774 lets you control the

informationthat isaccessible tothose onthe wirelessnetwork, whetherfrom theInternet

orfrom your company’sserver:

Content Filtering –Easily appliedcontentfiltering basedon MACAddress,IPAddress,

URLand /or DomainName.

Filter Scheduling – Filters can be scheduled to be active on certain days or for a

durationofhours or minutes.

Network Address Translation – NAT protects the DI-774 and its users from outside

intrudersgainingaccess to yourprivate network

VPN Multiple/Concurrent Sessions – Supports multiple and concurrent IPSec and

PPTP sessions, so multiple users behind the DI-774 can access corporate networks

throughvariousVPN clientsmoresecurely.

Connections - Back Panel of Unit

All Ethernet Ports (WAN and LAN)

areautoMDI/MDIX,meaningyoucan

use either a straight-through or a

crossover Ethernet cable.

AutoMDI/MDIX

LAN ports

automatically

sense the cable

typewhen

connecting to

Ethernet-enabled

computers.

TheAuto MDI/MDIX

WAN port is the

connection for the

Ethernet cable to

the Cable or DSL

modem

Receptor

for the

Power

Adapter

Pressing the

Reset Button

restores the

router to its

original factory

default settings.

Features

!Connectsmultiplecomputers to a Broadband(Cable or DSL) modemto

sharethe Internet connection

!IPFiltering

!AdvancedFirewall features

!DHCPserver supported enablesallnetworked computerstoautomatically

receiveIP addresses

!Web-basedinterface forManaging andConfiguring

Access Control to manage users on the network

!Supportsspecial applications thatrequire multiple connections

!Equippedwith 4 10/100Ethernetports,1WAN port,Auto MDI/MDIX

!URLFiltering

!DomainBlocking

!Scheduling

!SupportsNAT withVPN pass-through,providing added security

!MACFiltering

Operatesin the 2.4GHzfrequency range

!User-friendlyconfiguration anddiagnostic utilities

!Utilizes OFDMtechnology (Orthogonal Frequency DivisionMultiplexing) to

ensurestrongwireless signals forboth 802.11gand 802.11a

802.1xAuthentication in conjunction withthe RADIUSserver verifiesthe

identity of would be clients

WPA (Wi Fi ProtectedAccess ) authorizes and identifies users based on a

secret key that changes automatically at a regular interval, for example:

!Backwardscompatible withthe 802.11b standardtoprovidea wirelessdata

rate of up to 11Mbps

Fullycompatiblewiththe 802.11g standardto provide awireless datarate of

upto54Mbps

!TKIP (Temporal Key Integrity Protocol), in conjunction with a RADIUS

server,changesthetemporalkeyevery10,000packets,ensuringgreater

security

Pre-Shared Key mode means that the home user, without a RADIUS

server, will obtain a new security key every time the he or she connects

to the network, vastly improving the safety of communications on the

network.

LEDs - Front Panel of Unit

LED stands for Light-Emitting Diode. The DI-774 has the following LEDs:

WLAN LEDs for 11a

and11gwirelessnet-

worksegments.

A solid light indi-

cates that the

wireless segment is

ready.The LEDs

blinkduring wireless

datatransmission

WANLED

A solid light

indicatesconnec-

tion on the WAN

port.This LED

blinksduring data

transmission

Local

NetworkLEDs

A solid light indicates

a connection to an

Ethernet-enabled

computeron ports 1-

4. The LEDs blink

duringdata transmis-

sion

Status

Ablinkinglight

indicates that the

DI-774is ready

Power

A solid light

indicatesa proper

connection to the

powersupply

Wireless Basics

D-Link wireless products are based on industry standards to provide easy-to-use and

compatiblehigh-speedwirelessconnectivitywithin yourhome,business orpublic access

wirelessnetworks.D-Link wireless productswill allow youaccessto the datayou want,

whenandwhereyouwantit.Youwillbeable toenjoythefreedomthatwirelessnetworking

brings.

A WLAN is a cellular computer network that transmits and receives data with radio

signals instead of wires. WLANs are used increasingly in both home and office

environments,andpublicareassuchasairports,coffeeshopsanduniversities.Innovative

ways to utilize WLAN technology are helping people to work and communicate more

efficiently. Increased mobility and the absence of cabling and other fixed infrastructure

haveproven to bebeneficial for manyusers.

Wireless users can use the same applications they use on a wired network. Wireless

adapter cards used on laptop and desktop systems support the same protocols as

Ethernetadapter cards.

Peopleusewireless LAN technologyfor many differentpurposes:

Mobility - Productivity increases when people have access to data in any location

within the operating range of the WLAN. Management decisions based on real-time

informationcan significantly improveworker efficiency.

Low Implementation Costs –WLANs are easy to set up, manage, change and

relocate. Networks that frequently change can benefit from WLANs ease of

implementation. WLANs can operate in locations where installation of wiring may be

impractical.

Installation and Network Expansion - Installing a WLAN system can be fast

andeasyand can eliminatetheneed to pull cablethrough walls and ceilings.Wireless

technologyallowsthe network togo where wirescannot go -evenoutside the homeor

office.

Scalability –WLANscan beconfiguredin avariety oftopologies to meetthe needsof

specific applications and installations. Configurations are easily changed and range

frompeer-to-peer networks suitablefor a smallnumber of usersto larger infrastructure

networkstoaccommodate hundreds orthousands of users, dependingon the number

ofwireless devices deployed.

Inexpensive Solution - Wireless network devices are as competitively priced as

conventionalEthernet networkdevices.

Standards-Based Technology

The DI-774 Wireless Broadband Router utilizes the new 802.11g standard, in addition

tothe802.11aand 802.11bstandards.

The IEEE 802.11g standard is an extension of the 802.11b standard. It increases the

data rate up to 54 Mbps within the 2.4GHz band, utilizing OFDM technology.

Thismeans that inmost environments, withinthe specified rangeof this device,you will

be able to transfer large files quickly or even watch a movie in MPEG format over your

network without noticeable delays. This technology works by transmitting high-speed

digitaldataoveraradio waveutilizingOFDM (OrthogonalFrequencyDivisionMultiplexing)

technology. OFDM works by splitting the radio signal into multiple smaller sub-signals

thatare then transmittedsimultaneouslyatdifferent frequencies tothe receiver. OFDM

reducestheamount of crosstalk(interference) insignal transmissions.

Wireless Basics (continued)

Installation Considerations

The D-Link AirXpert DI-774letsyou accessyournetwork, using awireless connection,

fromvirtuallyanywherewithinitsoperatingrange.Keepinmind,however, thatthenumber,

thickness and location of walls, ceilings, or other objects that the wireless signals must

passthrough,maylimitthe range.Typicalranges varydependingonthe typesofmaterials

and background RF (radio frequency) noise in your home or business. The key to

maximizing wireless range is to follow these basic guidelines:

Keepthe numberof walls andceilings betweenthe DI-624and othernetwork

devices toaminimum - eachwall or ceiling canreduce your D-Link wireless

product’s range from 3-90 feet (1-30 meters.) Position your devices so that

the number of walls or ceilings is minimized.

Be aware of the direct line between network devices. A wall that is 1.5 feet

thick (.5 meters), at a 45-degree angle appears to be almost 3 feet (1 meter)

thick. At a 2-degree angle it looks over 42 feet (14 meters) thick! Position

devicessothat the signalwilltravel straight through awall or ceiling (instead

ofatan angle) forbetter reception.

Building Materials can impede the wireless signal - a solid metal door or

aluminumstuds mayhave anegativeeffect onrange. Tryto positionwireless

devices and computers with wireless adapters so that the signal passes

throughdrywallor open doorwaysand not other materials.

Keep your product away (at least 3-6 feet or 1-2 meters) from electrical

devicesorappliances that generateextreme RF noise.

Getting Started

Setting up a

Wireless

Infrastructure

Network

Youwill need broadbandInternet access(a Cable orDSL-subscriber lineinto

yourhome oroffice)

Consultwith yourCable or DSLprovider forproper installationof themodem

ConnecttheCable or DSLmodem to theDI-774 Wireless Router(seethe

printedQuick Installation Guideincluded withyour router.)

If you are connecting a desktop computer to your network, install the D-Link Air

XpertDWL-AG520 wirelessPCIadapter intoan availablePCI sloton your

desktopcomputer.

(Seethe printed QuickInstallation Guide includedwith the networkadapter.)

InstalltheD-Link DWL-AG650 wirelessCardbus adapterinto a laptopcomputer.

(Seethe printedQuickInstallation Guideincludedwith theDWL-AG650.)

Installthe D-LinkDFE-530TX+wireless Cardbusadapter intoa desktopcom-

puter.Thefour EthernetLAN portsof theDI-774 areAuto MDI/MDIXand will

workwith bothStraight-through andCrossover cable.

(Seethe printed QuickInstallation Guide includedwith the DFE-530TX+.)

For a typical wireless setup at home (as shown above),

please do the following:

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