NETGEAR DG834G Bedienungsanleitung

Introduction 1-1

v1.0, November 2005

Chapter 1

Introduction

This chapter describes the features of the NETGEAR 54 Mbps ADSL Modem Wireless Router

Model DG834G. The ADSL Modem Wireless Router is a combination of a built-in ADSL

modem, modem router, 4-port switch, and firewall which enables your entire network to safely

share an Internet connection that otherwise would be used by a single computer.

About the Modem Router

The 54 Mbps ADSL Modem Wireless Router Model DG834G provides continuous, high-speed

10/100 Ethernet access between your Ethernet devices. With minimum setup, you can install and

use the modem router within minutes.

The ADSL Modem Wireless Router provides multiple Web content filtering options, reporting,

and instant alerts. Parents and network administrators can establish restricted access policies based

on time of day, Web site addresses, and address keywords. They can also share high-speed ADSL

Internet access for up to 253 personal computers. The included firewall and Network Address

Translation (NAT) features protect you from hackers.

The DG834G also supports Trend Micro Home Network Security, a bundle of services that

includes router-based Parental Controls and network-wide protection from viruses, Trojans,

spyware, spam, and other Internet threats.

Note: If you are unfamiliar with networking and routing, refer to “Internet Networking

and TCP/IP Addressing:” in Appendix C to become more familiar with the terms

and procedures used in this manual.

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Key Features

The ADSL Modem Wireless Router provides the following features:

• A built-in ADSL modem

• A powerful, true firewall

• 802.11g standards-based wireless networking

• Easy, Web-based setup for installation and management

• Extensive Internet protocol support

• Trustworthy VPN Communications over the Internet

• VPN Wizard for easy VPN configuration

• Auto Sensing and Auto Uplink™ LAN Ethernet connections

• Content filtering

• Support for Trend Micro Home Network Security

These features are discussed below.

A Powerful, True Firewall

Unlike simple Internet sharing NAT routers, the DG834G is a true firewall, using stateful packet

inspection to defend against hacker attacks. Its firewall features include:

• Denial of Service (DoS) protection

Automatically detects and thwarts Denial of Service (DoS) attacks such as Ping of Death,

SYN Flood, LAND Attack and IP Spoofing.

• Blocks unwanted traffic from the Internet to your LAN.

• Blocks access from your LAN to Internet locations or services that you specify as off-limits.

• Logs security incidents

The DG834G will log security events such as blocked incoming traffic, port scans, attacks,

and administrator logins. You can configure the modem router to email the log to you at

specified intervals. You can also configure the modem router to send immediate alert messages

to your email address or email pager whenever a significant event occurs.

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802.11 Standards-based Wireless Networking

The ADSL Modem Wireless Router includes an 802.11g-compliant wireless access point,

providing continuous, high-speed 10/100 Mbps access between your wireless and Ethernet

devices. The access point provides:

• 802.11g Standards-based wireless networking at up to 54 Mbps

• Works with both 802.11g and 802.11b wireless devices

• 64-bit and 128-bit WEP encryption security

• WEP keys can be entered manually or generated by passphrase

• Support for Wi-Fi Protected Access Pre-Shared Key (WPA-PSK) encryption and 802.1x

authentication

• Wireless access can be restricted by MAC address

Easy Installation and Management

You can install, configure, and operate the DG834G within minutes after connecting it to the

network. The following features simplify installation and management tasks:

• Browser-based management

Browser-based configuration allows you to easily configure your modem router from almost

any type of personal computer, such as Windows, Macintosh, or Linux. A user-friendly Setup

Wizard is provided and online help documentation is built into the browser-based Web

Management Interface.

• Smart Wizard

The firmware in the modem router automatically senses the type of Internet connection, asking

you only for the information required for your type of ISP account.

• Remote management

The modem router allows you to log in to the Web management interface from a remote

location via the Internet. For security, you can limit remote management access to a specified

remote IP address or range of addresses, or you can choose a nonstandard port number.

• Diagnostic functions

The modem router incorporates built-in diagnostic functions such as Ping, DNS lookup, and

remote reboot. These functions allow you to test Internet connectivity and reboot the modem

router. You can use these diagnostic functions directly from the DG834G when you are

connected on the LAN or when you are connected over the Internet via the remote

management function.

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• Visual monitoring

The modem router’s front panel LEDs provide an easy way to monitor its status and activity.

• Flash erasable programmable read-only memory (EPROM) for firmware upgrades.

Protocol Support

The DG834G supports Transmission Control Protocol/Internet Protocol (TCP/IP) and Routing

Information Protocol (RIP). “Internet Networking and TCP/IP Addressing:” in Appendix C

provides further information on TCP/IP.

• The Ability to Enable or Disable IP Address Sharing by NAT

The DG834G allows several networked PCs to share an Internet account using only a single IP

address, which may be statically or dynamically assigned by your Internet service provider

(ISP). This technique, known as Network Address Translation (NAT), allows the use of an

inexpensive single-user ISP account. This feature can also be turned off completely while

using the DG834G if you want to manage the IP address scheme yourself.

• Automatic Configuration of Attached PCs by DHCP

The DG834G dynamically assigns network configuration information, including IP, modem

router, and domain name server (DNS) addresses, to attached PCs on the LAN using the

Dynamic Host Configuration Protocol (DHCP). This feature greatly simplifies configuration

of PCs on your local network.

• DNS Proxy

When DHCP is enabled and no DNS addresses are specified, the modem router provides its

own address as a DNS server to the attached PCs. The modem router obtains actual DNS

addresses from the ISP during connection setup and forwards DNS requests from the LAN.

• Classical IP (RFC 1577)

Some Internet service providers, in Europe for example, use Classical IP in their ADSL

services. In such cases, the modem router is able to use the Classical IP address from the ISP.

• PPP over Ethernet (PPPoE)

PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an ADSL

connection by simulating a dial-up connection. This feature eliminates the need to run a login

program such as EnterNet or WinPOET on your computer.

• PPP over ATM (PPPoA)

PPP over ATM is a protocol for connecting remote hosts to the Internet over an ADSL

connection by simulating an ATM connection.

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• Dynamic DNS

Dynamic DNS services allow remote users to find your network using a domain name when

your IP address is not permanently assigned. The modem router contains a client that can

connect to many popular Dynamic DNS services to register your dynamic IP address.

• Universal Plug and Play (UPnP)

UPnP is a networking architecture that provides compatibility between networking

technologies. UPnP compliant routers provide broadband users at home and small businesses

with a seamless way to participate in online games, videoconferencing and other peer-to-peer

services.

Virtual Private Networking (VPN)

The ADSL Modem Wireless Router provides a secure encrypted connection between your local

area network (LAN) and remote networks or clients. It includes the following VPN features:

• Supports 8 VPN connections.

• Supports industry standard VPN protocols

The ADSL Modem Wireless Router supports standard Manual or IKE keying methods,

standard MD5 and SHA-1 authentication methods, and standard DES and 3DES encryption

methods. It is compatible with many other VPN products.

• Supports 3DES encryption for maximum security.

• VPN Wizard based on VPNC recommended settings.

Auto Sensing and Auto Uplink™ LAN Ethernet Connections

With its internal 4-port 10/100 switch, the DG834G can connect to either a 10 Mbps standard

Ethernet network or a 100 Mbps Fast Ethernet network. The local LAN ports are autosensing and

capable of full-duplex or half-duplex operation.

The modem router incorporates Auto UplinkTM technology. Each local Ethernet port will

automatically sense whether the Ethernet cable plugged into the port should have a ‘normal’

connection such as to a computer or an ‘uplink’ connection such as to a switch or hub. That port

will then configure itself to the correct configuration. This feature also eliminates the need to

worry about crossover cables, as Auto Uplink will accommodate either type of cable to make the

right connection.

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Content Filtering

With its content filtering feature, the DG834G prevents objectionable content from reaching your

PCs. The modem router allows you to control access to Internet content by screening for keywords

within Web addresses. You can configure the modem router to log and report attempts to access

objectionable Internet sites.

Trend Micro Home Network Security

This service bundle from Trend Micro has three components:

•Trend Micro dashboard

This component is free for unlimited use. From the dashboard you can:

— Scan your computer and entire network for security vulnerabilities

— View individual computer and network-wide security reports

— Detect and remove spyware

— View attempts to access content restricted by Parental Controls

— Purchase subscriptions for Parental Controls and Trend Micro Internet Security

•Trend Micro Internet Security

You can install this program on up to 10 computers and try it free for 60 days. Its features

include:

— Real-time and scheduled scanning to remove viruses, Trojans, spyware, and other Internet

threats

— Personal firewall

— Network intruder detection

—Anti-spam

•Router-based Parental Controls

This service restricts home network users from viewing inappropriate Web content. It is free

for 60 days, and when you register your free trial of Trend Micro Internet Security, your free

use of Parental Controls is automatically extended to one year.

For instructions on activating these services, refer to “Trend Micro Home Network Security” on

page 4-15.

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What’s in the Box?

The product package should contain the following items:

• 54 Mbps ADSL Modem Wireless Router Model DG834G

• AC power adapter (varies by region)

• Category 5 (Cat 5) Ethernet cable

• Telephone cable with RJ-11 connector

• Microfilters (quantity and type vary by region)

•DG834G ADSL Modem Wireless Router Resource CD, including this guide

• Two plastic feet that can be used to stand the ADSL Modem Wireless Router on end

• Warranty and Support Information cards

If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep the

carton, including the original packing materials, in case you need to return the product for repair.

Reference Manual for the ADSL Modem Wireless Router DG834G

1-8 Introduction

v1.0, November 2005

The Router’s Front Panel

The front panel shown below contains status LEDs.

You can use the LEDs to verify various conditions. Table 2-1 describes each LED.

Figure 2-1

Table 2-1. LED Descriptions

Label Activity Description

1. Power On

Off Power is supplied to the router.

Power is not supplied to the router.

2. Test On

Off The system is initializing.

The system is ready and running.

3. Internet Blink -- Amber

On -- Green

Blink -- Green

Indicates ADSL training.

The Internet port has detected a link with an attached device.

Data is being transmitted or received by the Internet port.

4. Wireless On

Off Indicates that the Wireless port is initialized.

The Wireless Access Point is turned off.

5. LAN

On (Green)

Blink (Green)

On (Amber)

Blink (Amber)

Off

The Local port has detected a link with a 100 Mbps device.

Data is being transmitted or received at 100 Mbps.

The Local port has detected a link with a 10 Mbps device.

Data is being transmitted or received at 10 Mbps.

No link is detected on this port.

12345

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Introduction 1-9

v1.0, November 2005

The Router’s Rear Panel

The rear panel of the 54 Mbps ADSL Modem Wireless Router Model DG834G (Figure 2-2)

contains port connections.

Viewed from left to right, the rear panel contains the following elements:

1. AC power adapter outlet

2. Four Local Ethernet RJ-45 LAN ports for connecting the firewall to the local computers

3. Factory Default Reset push button

4. RJ-11 ADSL port for connecting the firewall to an ADSL line

5. Wireless antenna

Figure 2-2

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v1.0, November 2005

Connecting the Router to the Internet

To connect your ADSL Modem Wireless Router to the Internet, refer to the ADSL Modem

Wirelesss Router Setup Manual on the DG834G ADSL Modem Wireless Router Resource CD or

online as shown in the following table.

Table 2-2.

Language URL

Dutch http://documentation.netgear.com/dg834g/nld/208-10018-01/

English http://documentation.netgear.com/dg834g/enu/208-10012-01/

French http://documentation.netgear.com/dg834g/fra/208-10013-01/

German http://documentation.netgear.com/dg834g/deu/208-10014-01/

Italian http://documentation.netgear.com/dg834g/ita/208-10015-01/

Spanish http://documentation.netgear.com/dg834g/esp/208-10016-01/

Swedish http://documentation.netgear.com/dg834g/sve/208-10017-01/

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