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Page 16 / 132 Scroll up to view Page 11 - 15
Reference Manual for the Model DG632 ADSL Modem Router
2-2
Introduction
–
Modem Device Mode supports configuration of your Internet connection on your
computer, and running software on your computer to log in to your ISP, if needed.
–
Router Device Mode supports configuration of your Internet connection on your
DG632 modem router, and can be configured to automatically log in to your ISP, if
needed.
These features are discussed below.
Modem or Router Device Mode
The DG632 modem router can be set to operate in either Modem Device Mode or Router Device
Mode.
Modem Device Mode
When set to operate in Modem Device Mode, your computer must be configured for whatever
settings your ISP requires. Also, if your ISP uses software to establish your Internet connection,
the DHCP spoofing feature will eliminate the need to run that software.
When DHCP spoofing is enabled, the modem obtains the actual Internet WAN IP address from the
ISP during connection setup and forwards it to the attached computer.
Router Device Mode
In Router Device Mode, the DG632 supports configuration of the Transmission Control Protocol/
Internet Protocol (TCP/IP) parameters and login functions on the modem.
The DG632 supports Transmission Control Protocol/Internet Protocol (TCP/IP) and Routing
Information Protocol (RIP).
Appendix B, “Network and Routing Basics”
provides further
information on TCP/IP.
•
Automatic Configuration of Attached PCs by DHCP
The DG632 dynamically assigns network configuration information, including IP, modem,
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 provides its own
address as a DNS server to the attached PCs. The modem obtains actual DNS addresses from
the ISP during connection setup and forwards DNS requests from the LAN.
Page 17 / 132
Reference Manual for the Model DG632 ADSL Modem Router
Introduction
2-3
•
Classical IP (RFC 1577)
Some Internet service providers, in Europe for example, use Classical IP in their ADSL
services. In such cases, the modem 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.
A Powerful, True Firewall
Unlike simple Internet sharing NAT routers, the DG632 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 DG632 will log security events such as blocked incoming traffic, port scans, attacks, and
administrator logins.
Auto Sensing and Auto Uplink™ LAN Ethernet Connections
The DG632 can connect to either a 10 Mbps standard Ethernet network or a 100 Mbps Fast
Ethernet network. The local LAN port is autosensing and capable of full-duplex or half-duplex
operation.
The modem incorporates Auto Uplink
TM
technology. The 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.
Page 18 / 132
Reference Manual for the Model DG632 ADSL Modem Router
2-4
Introduction
Easy Installation and Management
You can install, configure, and operate the DG632 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 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 modem automatically senses the type of Internet connection, asking you only for the
information required for your type of ISP account.
•
Diagnostic functions
The modem incorporates built-in diagnostic functions such as Ping, and DNS lookup. These
functions allow you to test Internet connectivity.
•
Visual monitoring
The modem’s front panel LEDs provide an easy way to monitor its status and activity.
•
Flash erasable programmable read-only memory (EPROM) for firmware upgrade
Page 19 / 132
Reference Manual for the Model DG632 ADSL Modem Router
Introduction
2-5
What’s In The Box?
The product package should contain the following items.
Figure 2-1:
DG632 Package contents
•
DG632 ADSL Modem Router
•
AC power adapter (varies by region)
•
Category 5 (Cat 5) Ethernet cable
•
Microfilters (quantity and type vary by region)
•
USB Cable (depending on the country of purchase)
•
Telephone cable
•
Microfilters (quantity and type vary by region)
•
ADSL Modem Router Resource CD
, including:
—
This guide
—
Application Notes
DG632 ADSL Firewall Router
Resource CD, installation guide,
support information card &
warranty/registration card
Power adapter
Category 5
100 Mbps
Ethernet cable
Phone Cable
Micro Filter
DSL FILTER
DSL
HPN
PHONE
LINE
ADSL Firewall Router DG632
Page 20 / 132
Reference Manual for the Model DG632 ADSL Modem Router
2-6
Introduction
•
DG632 ADSL Modem Router Installation Guide
•
A Printed Quick Installation Guide
•
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 router for repair.
The Front Panel
The DG632 ADSL Modem Router front panel shown below contains status LEDs.
Figure 2-2:
DG632 Front Panel
You can use the LEDs to verify various conditions.
Table 2-1
lists and describes each LED on the
front panel of the modem. These LEDs are green when lit.
Table 2-1.
LED Descriptions
Label
Activity
Description
Power
On
Off
Power is supplied to the modem.
Power is not supplied to the modem.
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.
Power
USB
Internet
Ethernet

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