D-Link DI-713P User manual

D-Link
DI-713P
Wireless Broadband Router
User’s Manual

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Contents
Contents… ....................................................................................................2
Chapter 1 -Getting Started...........................................................................4
Introduction to Broadband Router Technology........................................6
Introduction to Firewalls..........................................................................7
Introduction to Local Area Networking ...................................................8
Introduction to Virtual Private Networking..............................................9
Introduction to Wireless Networking .....................................................10
Chapter 2 -Hardware Installation ..............................................................12
Procedure for Hardware Installation ......................................................12
Package Contents ...................................................................................14
LED Panel ..............................................................................................15
Rear Panel...............................................................................................16
Chapter 3 -Basic Broadband Router Configuration..................................17
Start-up and Log in.................................................................................17
Device Information.................................................................................19
Useful Tools............................................................................................20
Setup .......................................................................................................24
Static IP Address.....................................................................................25
Dynamic IP Address...............................................................................26
PPP over Ethernet...................................................................................27
Dial-up Network.....................................................................................29
DHCP .....................................................................................................31
Wireless..................................................................................................33
Print Server.............................................................................................34
Chapter 4 -Advanced Broadband Router Configuration ...........................35

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Virtual Server .........................................................................................37
Special Applications ...............................................................................40
Access Control .......................................................................................43
Wireless..................................................................................................46
Miscellaneous Items ...............................................................................48
DMZ Host...............................................................................................48
Remote Administrator Host....................................................................49
Non-Standard FTP Port ..........................................................................49
Chapter 5 -Console Mode..........................................................................51
Chapter 6 -Troubleshooting.......................................................................53
Basic Functions ......................................................................................53
LAN Connection Problems ....................................................................55
ISP Connection Problems .......................................................................57
Internet Application Problems ................................................................58
Wireless Troubleshooting.......................................................................60
Appendix 1 -Using PING..........................................................................61
Appendix 2 -Using WINIPCFG................................................................63
Contacting Technical Support ....................................................................67
Technical Specifications.............................................................................68
D-Link Offices............................................................................................70
Limited Warranty........................................................................................71
Registration Card........................................................................................79
Rev. 2001-03-15

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Chapter 1 -Getting Started
Thank you for purchasing the D-Link Broadband Router. Your
Broadband Router enables you to share your DSL or Cable Internet
connection with computers on your wired or wireless network. This guide
will explain the features and functions of the Broadband Router to help you
get the most out of your Internet experience.
D-Link’s Wireless Broadband Router allows wireless LAN users to
share a single Internet Connection while providing the safety and security
of port blocking, packet filtering, and a natural firewall. Static address
support, integrated DHCP, PPPoE, and device name support will allow it to
connect to nearly any broadband provider whether Cable or DSL based,
and at the same time simplify local area network settings.
The Wireless Broadband Router provides two levels of security
support. First, it masks local users’ IP addresses from others on the Internet
making it much more difficult for a hacker to target a machine on your
network. Secondly it can block and redirect certain ports to limit the
services that outside users can access. Specific ports can be opened by the
user to ensure that games and other Internet applications will run properly.
The Wireless Broadband Router provides special pass through support
for common VPN implementations. The Virtual Server feature allows you
to expose HTTP, FTP, Game Servers and other local services to be
accessible to Internet users located outside of the LAN. The
User-Definable Application Sensing Tunnel feature allows the user to
define the attributes to support special applications requiring multiple
connections, such as Internet gaming, video conferencing, and Internet
telephony. A DMZ setting can be applied to a single client behind the

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Wireless Broadband Router to expose it to the Internet and ensure
complete Internet application compatibility even if specific ports are not
known.
Unlike proxy server or NAT software that requires the software server
to remain visible on the Internet, no local computers are directly externally
visible when using the Wireless Broadband Router. Also the Wireless
Broadband Router, like broadband, is always on, removing the need to
constantly boot a software server when access is desired from a client.
Integrated DHCP services allow up to 252 users to get their IP address
automatically on boot up from the Wireless Broadband Router. Client
machines require no software, simply set them to accept a dynamically
assigned IP address and reboot. Each time they are powered up the
Wireless Broadband Router will recognize them and set their IP address to
instantly connect them to the LAN

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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 work on OSI layer 3, which forwards data packets
using an 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 shouldn’t be there. This provides security
for the computers behind your router because computers from the outside
can’t 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 isn’t intended for any
computer on your network, the data is discarded. This keeps any unwanted
or harmful information from accessing or damaging your network.

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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 such
as 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. Wireless
networks don’t 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, 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 port that each piece of data is supposed to be
delivered to. A switch minimizes network traffic and speeds up the
communication over a network.
Networks take some time in order to plan and implement correctly.
There are many types of scenarios to consider which could affect the
operability of a network. Some of these issues are discussed in this manual
under the Networking Basics section.

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Introduction to Virtual Private Networking
Virtual Private Networking (VPN) uses a publicly wired network (the
Internet) to 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.
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 their own VPN network making interoperability a
challenge.

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Introduction to Wireless Networking
D-Link wireless products are based on industry standards to provide
easy to use and compatible high speed wireless connectivity within your
home or business. Strictly adhering to IEEE 802.11b the D-Link wireless
family of products will allow you to access the data you want, when and
where you want it. No longer will you be tethered to a workstation or
forced to run new wiring. You will be able to enjoy the freedom that
wireless networking delivers.
Standards Based Technology
Based on IEEE 802.11b, D-Link Air products can throughput data up
to 11 Megabits per second. This means 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 using multiple
frequencies in the 2.4GHz range utilizing Direct Sequence Spread
Spectrum (DSSS) technology. D-Link Air products will automatically
sense the best possible connection speed to ensure the greatest speed and
range possible with the technology.
Installation Considerations
Designed to go up to 100 meters indoors and up to 300 meters
outdoors, D-Link Air lets you access your network from anywhere you
want. Keep in mind, however, that the number of walls, ceilings or other
objects that the wireless signals must pass thru will limit range. Typical
ranges vary depending on the types of materials and background RF noise
in your home or business. The key to maximizing range is to follow these
basic principles: