D Link DIR855A2 Xtreme N DUO MEDIA ROUTER User Manual User s manual rev 1

D Link Corporation Xtreme N DUO MEDIA ROUTER User s manual rev 1

Manual 1

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November 13, 2007
April 23, 2008
1.0
1.1
Description
Updated warranty information
DIR-855 Revision A1 with Firmware version 1.00
D-Link DIR-855 User Manual
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission
from D-Link Systems, Inc.
Copyright © 2008 by D-Link Systems, Inc.
D-Link and the D-Link logo are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the
United States or other countries. All other company or product names mentioned herein are trademarks or registered
trademarks of their respective companies.
Trademarks
Date
Revision
Manual Revisions
D-Link reserves the right to revise this publication and to make changes in the content hereof without obligation to
notify any person or organization of such revisions or changes.
Preface
D-Link DIR-855 User Manual
Conﬁguration ............................................................. 14
Web-based Conﬁguration Utility ............................ 14
Setup Wizard ................................................... 15
Manual Conﬁguration....................................... 19
Dynamic (Cable)........................................... 19
PPPoE (DSL) ............................................... 20
PPTP............................................................ 21
Installation.................................................................... 7
Before you Begin ..................................................... 7
Wireless Installation Considerations........................ 8
Network Diagram ..................................................... 9
Connect to Cable/DSL/Satellite Modem ................ 10
Connect to Another Router .................................... 11
Getting Started ...................................................... 13
Product Overview ........................................................ 1
Package Contents.................................................... 1
System Requirements ............................................. 2
Introduction .............................................................. 3
Features................................................................... 4
Hardware Overview ................................................. 5
Connections....................................................... 5
LEDs .................................................................. 6
ii
L2TP............................................................. 23
Static (assigned by ISP) ............................... 25
Wireless Settings ............................................. 26
802.11n/g (2.4GHz)...................................... 26
802.11n/a (5GHz)......................................... 28
Network Settings.............................................. 30
LAN Settings ................................................ 30
DHCP Server Settings ................................. 31
DHCP Reservation....................................... 32
Virtual Server ................................................... 33
Port Forwarding ............................................... 35
Application Rules ............................................. 36
QoS Engine ..................................................... 37
Network Filters................................................. 38
Access Control................................................. 39
Access Control Wizard ................................. 39
Website Filters ................................................. 42
Inbound Filters ................................................. 43
Firewall Settings............................................... 44
Application Level Gateway (ALG)
Conﬁguration.................................................... 45
Router Settings ................................................ 46
Advanced Wireless Settings ............................ 47
802.11n/g (2.4GHz)...................................... 47
802.11n/a (5GHz)......................................... 48
WISH Settings ................................................. 49
Advanced Network Settings............................. 51
Table of Contents
Preface........................................................................... i
Manual Revisions ..................................................... i
Trademarks ............................................................... i
Table of Contents
D-Link DIR-855 User Manual
Wireless Security....................................................... 67
What is WPA? ........................................................ 67
Wireless Security Setup Wizard ............................ 68
Add Wireless Device with WPS Wizard ................. 70
Conﬁgure WPA-Personal (PSK)............................. 71
Conﬁgure WPA-Enterprise (RADIUS).................... 72
UPnP............................................................ 51
Internet Ping Block ....................................... 51
Internet Port Speed ...................................... 51
Multicast Streams......................................... 51
Administrator Settings...................................... 52
Change Password ........................................ 52
Remote Management................................... 52
Time Settings................................................... 53
SysLog............................................................. 54
Email Settings.................................................. 55
System Settings............................................... 56
Update Firmware ............................................. 57
DDNS............................................................... 58
System Check.................................................. 59
Schedules ........................................................ 60
Device Information ........................................... 61
Log................................................................... 62
Stats................................................................. 63
Internet Sessions ............................................. 64
Wireless ........................................................... 65
WISH ............................................................... 65
Support ............................................................ 66
Table of Contents
iii
Registration.............................................................. 100
Warranty ..................................................................... 94
Contacting Technical Support .................................. 93
Technical Speciﬁcations ........................................... 92
Networking Basics .................................................... 90
Check your IP address .......................................... 90
Statically Assign an IP address ............................. 91
Wireless Basics ......................................................... 85
What is Wireless? .................................................. 86
Tips ........................................................................ 88
Wireless Modes ..................................................... 89
Troubleshooting......................................................... 81
Connect to a Wireless Network ................................ 74
Using Windows Vista® ............................................ 74
Conﬁgure Wireless Security............................. 75
Connect Using WCN 2.0 in Windows Vista® ......... 77
Using Windows® XP............................................... 78
Conﬁgure WPA-PSK ........................................ 79
Stand
CD-ROM
Ethernet Cable
Power Adapter
D-Link DIR-855 Xtreme N™
Duo™ Router
Product
PackageOverview
Contents
D-Link DIR-855 User Manual
Note: Using a power supply with a different voltage rating than the one included with the DIR-855 will cause damage and void the warranty for this
product.
Section 1 - Product Overview
Network Requirements
D-Link DIR-855 User Manual
CD Installation Wizard
Requirements
Computer with the following:
• Windows® XP with Service Pack 2 or Vista®
• An installed Ethernet adapter
• CD-ROM drive
Windows® Users: Make sure you have the latest version
of Java installed. Visit www.java.com to download the
latest version.
Browser Requirements:
• Internet Explorer 6.0 or higher
• Mozilla 1.7.12 or higher
• Firefox 1.5 or higher
• Safari 1.0 or higher (with Java 1.3.1 or higher)
• Flock 0.7.14 or higher
• Opera 6.0 or higher
Computer with the following:
• Windows®, Macintosh, or Linux-based operating
system
• An installed Ethernet adapter
• An Ethernet-based Cable or DSL modem
• IEEE 802.11n-draft or 802.11g wireless clients
• IEEE 802.11a wireless clients
• 10/100/1000 Ethernet
System Requirements
Web-based Conﬁguration
Utility Requirements
Section 1 - Product Overview
Introduction
D-Link DIR-855 User Manual
* Maximum wireless signal rate derived from IEEE Standard 802.11a, 802.11g and Draft 802.11n speciﬁcations. Actual data throughput will vary. Network conditions and
environmental factors, including volume of network trafﬁc, building materials and construction, and network overhead, lower actual data throughput rate. Environmental
conditions will adversely affect wireless signal range.
The Xtreme N™ Duo™ router supports all of the latest wireless security features to prevent unauthorized access, be it from
over the wireless network or from the Internet. Support for WPA and WEP standards ensure that you’ll be able to use the best
possible encryption method, regardless of your client devices. In addition, this router utilizes dual active ﬁrewalls (SPI and NAT)
to prevent potential attacks from across the Internet.
TOTAL NETWORK SECURITY
Powered byXtreme N™ Duo™ technology, this high performance router provides superior Whole Home Coverage while reducing
dead spots. The router is designed for use in bigger homes and for users who demand higher performance networking. Add a
Xtreme N™ notebook or desktop adapter and stay connected to your network from virtually anywhere in your home.
EXTENDED WHOLE HOME COVERAGE
The D-Link Xtreme N™ Duo™ router (DIR-855) is a draft 802.11n/802.11a compliant device that delivers real world performance
of up to 14x faster than an 802.11g wireless connection (also faster than a 100Mbps wired Ethernet connection). Create a
secure wireless network to share photos, ﬁles, music, video, printers, and network storage throughout your home. Connect the
DIR-855 router to a cable or DSL modem and share your high-speed Internet access with everyone on the network. In addition,
this Router includes a Quality of Service (QoS) engine that keeps digital phone calls (VoIP) and online gaming smooth and
responsive, providing a better Internet experience.
ULTIMATE PERFORMANCE
Provides greater wireless signal rates even at farther distances for best-in-class Whole Home Coverage.
TOTAL COVERAGE
The most complete set of security features including Active Firewall and WPA2 to protect your network against outside
intruders
TOTAL SECURITY
Combines award winning router features and IEEE 802.11a/Draft 802.11n wireless technology to provide the best wireless
performance
TOTAL PERFORMANCE
Section 1 - Product Overview
Features
D-Link DIR-855 User Manual
* Maximum wireless signal rate derived from IEEE Standard 802.11g, 802.11a, and Draft 802.11n speciﬁcations. Actual data throughput will vary. Network conditions and
environmental factors, including volume of network trafﬁc, building materials and construction, and network overhead, lower actual data throughput rate. Environmental
conditions will adversely affect wireless signal range.
• User-friendly Setup Wizard - Through its easy-to-use Web-based user interface, the DIR-855 lets you
control what information is accessible to those on the wireless network, whether from the Internet or from
your company’s server. Conﬁgure your router to your speciﬁc settings within minutes.
• Secure Multiple/Concurrent Sessions - The DIR-855 can pass through VPN sessions. It
supports multiple and concurrent IPSec and PPTP sessions, so users behind the DIR-855
can securely access corporate networks.
• Filter Scheduling - These ﬁlters can be scheduled to be active on certain days or for a
duration of hours or minutes.
• Content Filtering - Easily applied content ﬁltering based on MAC Address, URL, and/or
Domain Name.
• Advanced Firewall Features - The Web-based user interface displays a number of advanced network
management features including:
• Compatible with 802.11a/g Devices - The DIR-855 is still fully compatible with the IEEE 802.11g
and 802.11a standards, so it can connect with existing 802.11g and 802.11a PCI, USB, and Cardbus
adapters.
• Faster Wireless Networking - The DIR-855 provides up to 300Mbps* wireless connection with other
802.11n wireless clients. This capability allows users to participate in real-time activities online, such as
video streaming, online gaming, and real-time audio. The performance of this 802.11n wireless router
gives you the freedom of wireless networking at speeds 650% faster than 802.11g.
Section 1 - Product Overview
D-Link DIR-855 User Manual
Internet Port
The auto MDI/MDIX Internet port is
the connection for the Ethernet cable
to the cable or DSL modem.
USB
Connect a USB 1.1 or 2.0 ﬂash
drive to conﬁgure the wireless
settings using WCN.
Power Receptor
Receptor for the supplied power
adapter.
Reset
Pressing the Reset button restores the router to
its original factory default settings.
Connections
Hardware Overview
LAN Ports (1-4)
Connect Ethernet devices such as
computers, switches, and hubs.
Section 1 - Product Overview
D-Link DIR-855 User Manual
Power LED
A solid light indicates a
proper connection to the
power supply.
Section 1 - Product Overview
OLED Screen
Displays information
regarding the router.
Performance
WPS
Date/Time
DHCP
Menu
WAN
LEDs
OLED Screen
Displays the DHCP status.
Displays the routers date and time.
Displays the WPS status.
Select to display statistics of the LAN, WAN,
and wireless connections.
Select to display the OLED main menu.
Displays Internet connectivity.
Hardware Overview
Installation
D-Link DIR-855 User Manual
• When running the Setup Wizard from the D-Link CD, make sure the computer you are running the CD
from is connected to the Internet and online or the wizard will not work. If you have disconnected any
hardware, re-connect your computer back to the modem and make sure you are online.
• If you have DSL and are connecting via PPPoE, make sure you disable or uninstall any PPPoE software
such as WinPoet, Broadjump, or Enternet 300 from your computer or you will not be able to connect to
the Internet.
• You can only use the Ethernet port on your modem. If you were using the USB connection before using
the router, then you must turn off your modem, disconnect the USB cable and connect an Ethernet cable
to the Internet port on the router, and then turn the modem back on. In some cases, you may need to call
your ISP to change connection types (USB to Ethernet).
• Please conﬁgure the router with the computer that was last connected directly to your modem.
Before you Begin
This section will walk you through the installation process. Placement of the router is very important. Do not place the
router in an enclosed area such as a closet, cabinet, or in the attic or garage.
Section 2 - Installation
Wireless Installation Considerations
D-Link DIR-855 User Manual
5. If you are using 2.4GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and
home security systems), your wireless connection may degrade dramatically or drop completely. Make
sure your 2.4GHz phone base is as far away from your wireless devices as possible. The base transmits
a signal even if the phone in not in use.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that
generate RF noise.
3. Building Materials make a difference. A solid metal door or aluminum studs may have a negative effect on
range. Try to position access points, wireless routers, and computers so that the signal passes through
drywall or open doorways. Materials and objects such as glass, steel, metal, walls with insulation, water
(ﬁsh tanks), mirrors, ﬁle cabinets, brick, and concrete will degrade your wireless signal.
2. 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 devices so that the signal will travel straight through a wall or ceiling (instead
of at an angle) for better reception.
1. Keep the number of walls and ceilings between the D-Link router and other network devices to a minimum
- each wall or ceiling can reduce your adapter’s range from 3-90 feet (1-30 meters.) Position your devices
so that the number of walls or ceilings is minimized.
The D-Link wireless router lets you access your network using a wireless connection from virtually anywhere within
the operating range of your wireless network. Keep in mind, however, that the number, thickness and location of walls,
ceilings, or other objects that the wireless signals must pass through, may limit the range. Typical ranges vary depending
on the types of materials and background RF (radio frequency) noise in your home or business. The key to maximizing
wireless range is to follow these basic guidelines:
Section 2 - Installation
D-Link DIR-855 User Manual
Section 2 - Installation
Network Diagram
Connect to Cable/DSL/Satellite Modem
D-Link DIR-855 User Manual
8. Refer to page 13 to conﬁgure your router.
7. Turn on your computer.
6. Plug the power adapter to the router and connect to an outlet or power strip. Wait about 30 seconds for
the router to boot.
5. Turn on or plug in your modem. Wait for the modem to boot (about 30 seconds).
4. Plug an Ethernet cable into one of the four LAN ports on the router. Plug the other end into the Ethernet
port on your computer.
3. Unplug the Ethernet cable (that connects your computer to your modem) from your computer and place
it into the Internet port on the router.
2. Turn the power off on your modem. If there is no on/off switch, then unplug the modem’s power adapter.
Shut down your computer.
1. Place the router in an open and central location. Do not plug the power adapter into the router.
If you are connecting the router to a cable/DSL/satellite modem, please follow the steps below:
Section 2 - Installation
10
Connect to Another Router
D-Link DIR-855 User Manual
11
5. Under Router Settings, enter an available IP address and the subnet mask of your network. Click Save Settings to
save your settings. Use this new IP address to access the conﬁguration utility of the router in the future. Close the
browser and change your computer’s IP settings back to the original values as in Step 1.
4. Click Setup and then click Network Settings. Uncheck the Enable DHCP Server checkbox. Click Save Settings
to continue.
3. Click on Advanced and then click Advanced Network. Uncheck the Enable UPnP checkbox. Click Save Settings
to continue.
2. Open a web browser and enter http://192.168.0.1 and press Enter. When the login window appears, set the user
name to Admin and leave the password box empty. Click Log In to continue.
1. Plug the power into the router. Connect one of your computers to the router (LAN port) using an Ethernet cable.
Make sure your IP address on the computer is 192.168.0.xxx (where xxx is between 2 and 254). Please see the
Networking Basics section for more information. If you need to change the settings, write down your existing settings
before making any changes. In most cases, your computer should be set to receive an IP address automatically in
which case you will not have to do anything to your computer.
To connect to another router, please follow the steps below:
• Disable UPnP™
• Disable DHCP
• Change the LAN IP address to an available address on your network. The LAN ports on the router cannot
accept a DHCP address from your other router.
If you are connecting the D-Link router to another router to use as a wireless access point and/or switch, you will have
to do the following before connecting the router to your network:
Section 2 - Installation
D-Link DIR-855 User Manual
12
8. You may now use the other 3 LAN ports to connect other Ethernet devices and computers. To conﬁgure your wireless
network, open a web browser and enter the IP address you assigned to the router. Refer to the Conﬁguration and
Wireless Security sections for more information on setting up your wireless network.
7. Connect an Ethernet cable in one of the LAN ports of the router and connect it to your other router. Do not plug
anything into the Internet port of the D-Link router.
6. Disconnect the Ethernet cable from the router and reconnect your computer to your network.
Section 2 - Installation
Getting Started
D-Link DIR-855 User Manual
13
Note: It is reccomended to write down the SSID and Security Key, followed by the login password on the provided CD
holder.
Click Install Router
When the autorun screen appears, click Install Router.
If the CD Autorun function does not automatically start on your computer, go to Start > Run. In the run box type
“D:\DIR855.exe” (where D: represents the drive letter of your CD-ROM drive).
Insert the Quick Router Setup Wizard CD in the CD-ROM drive. The step-by-step instructions that follow are shown
in Windows® XP. The steps and screens are similar for the other Windows operating systems.
The DIR-855 includes a Quick Router Setup Wizard CD. Follow the simple steps below to run the Setup Wizard to
guide you quickly through the installation process.
Section 2 - Installation
Conﬁguration
D-Link DIR-855 User Manual
If you get a Page Cannot be Displayed error, please
refer to the Troubleshooting section for assistance.
Select Admin from the drop-down menu and then enter
your password. Leave the password blank by default.
To access the conﬁguration utility, open a web-browser
such as Internet Explorer and enter the IP address of
the router (192.168.0.1).
Web-based Conﬁguration Utility
14
This section will show you how to conﬁgure your new D-Link wireless router using the web-based conﬁguration
utility.
Section 3 - Conﬁguration
Setup Wizard
D-Link DIR-855 User Manual
Create a new password and then click Next to continue.
Click Next to continue.
If you want to enter your settings without running the wizard, click
Manual Conﬁguration and skip to page 19.
Click Launch Internet Connection Setup Wizard to begin.
Section 3 - Conﬁguration
15
D-Link DIR-855 User Manual
The Host Name is optional but may be required by some ISPs. The default
host name is the device name of the router and may be changed.
If you selected Dynamic, you may need to enter the MAC address of
the computer that was last connected directly to your modem. If you are
currently using that computer, click CloneYour PC’s MAC Address and
then click Next to continue.
Select the type of Internet connection you use and then click Next to
continue.
Select your time zone from the drop-down menu and then click Next to
continue.
Section 3 - Conﬁguration
16
D-Link DIR-855 User Manual
If you selected L2TP, enter your L2TP username and password. Click Next
to continue.
If you selected PPTP, enter your PPTP username and password. Click Next
to continue.
Note: Make sure to remove your PPPoE software from your computer. The
software is no longer needed and will not work through a router.
Select Static if your ISP assigned you the IP address, subnet mask, gateway,
and DNS server addresses.
If you selected PPPoE, enter your PPPoE username and password. Click
Next to continue.
Section 3 - Conﬁguration
17
D-Link DIR-855 User Manual
Close your browser window and reopen it to test your Internet connection.
It may take a few tries to initially connect to the Internet.
Click Connect to save your settings. Once the router is ﬁnished rebooting,
click Continue. Please allow 1-2 minutes to connect.
If you selected Static, enter your network settings supplied by your Internet
provider. Click Next to continue.
Section 3 - Conﬁguration
18
Dynamic (Cable)
Manual Conﬁguration
D-Link DIR-855 User Manual
MAC Address: The default MAC Address is set to the Internet
port’s physical interface MAC address on the
Broadband Router. It is not recommended that
you change the default MAC address unless
required by your ISP. You can use the Clone
Your PC’s MAC Address button to replace
the Internet port’s MAC address with the MAC
address of your Ethernet card.
MTU: Maximum Transmission Unit - you may need to
change the MTU for optimal performance with
your speciﬁc ISP. 1500 is the default MTU.
DNS Addresses: Enter the Primary DNS server IP address
assigned by your ISP.
Use Unicasting: Check the box if you are having problems
obtaining an IP address from your ISP.
Host Name: The Host Name is optional but may be required
by some ISPs.
My Internet Select Dynamic IP (DHCP) to obtain IP Address
Connection: information automatically from your ISP. Select
this option if your ISP does not give you any IP
numbers to use. This option is commonly used
for Cable modem services.
Section 3 - Conﬁguration
19
PPPoE (DSL)
Internet Setup
D-Link DIR-855 User Manual
20
MAC Address: The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s
MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.
MTU: Maximum Transmission Unit - you may need to change the MTU for optimal performance with your speciﬁc ISP. 1492 is the
default MTU.
DNS Addresses: Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature,
enable Auto-reconnect.
Maximum Idle Enter the Primary and Secondary DNS Server Addresses (Static PPPoE
Time: only).
Reconnection Mode: Select either Always-on, On-Demand, or Manual.
Service Name: Enter the ISP Service Name (optional).
Password: Enter your PPPoE password and then retype the password in the next
box.
User Name: Enter your PPPoE user name.
IP Address: Enter the IP address (Static PPPoE only).
Address Mode: Select Static if your ISP assigned you the IP address, subnet mask,
gateway, and DNS server addresses. In most cases, select Dynamic.
My Internet Select PPPoE (Username/Password) from the drop-down menu.
Connection:
Choose PPPoE (Point to Point Protocol over Ethernet) if your ISP uses a PPPoE connection. Your ISP will provide
you with a username and password. This option is typically used for DSL services. Make sure to remove your PPPoE
software from your computer. The software is no longer needed and will not work through a router.
Section 3 - Conﬁguration
PPTP
Internet Setup
D-Link DIR-855 User Manual
Maximum Idle Time: Enter a maximum idle time during which the
Internet connection is maintained during inactivity. To disable this feature, enable Auto-reconnect.
Reconnect Mode: Select either Always-on, On-Demand, or
Manual.
Password: Enter your PPTP password and then retype the
password in the next box.
Username: Enter your PPTP username.
PPTP Server IP: Enter the Server IP provided by your ISP
(optional).
PPTP Gateway: Enter the Gateway IP Address provided by your
ISP.
PPTP Subnet Mask: Enter the Primary and Secondary DNS Server
Addresses (Static PPTP only).
PPTP IP Address: Enter the IP address (Static PPTP only).
Address Mode: Select Static if your ISP assigned you the IP
address, subnet mask, gateway, and DNS server
addresses. In most cases, select Dynamic.
21
Choose PPTP (Point-to-Point-Tunneling Protocol ) if your ISP uses a PPTP connection. Your ISP will provide you with
a username and password. This option is typically used for DSL services.
Section 3 - Conﬁguration
D-Link DIR-855 User Manual
22
MAC Address: The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s
MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.
MTU: Maximum Transmission Unit - you may need to change the MTU for optimal performance with your speciﬁc ISP. 1400 is the
default MTU.
DNS Servers: The DNS server information will be supplied by your ISP (Internet Service Provider.)
Section 3 - Conﬁguration
L2TP
Internet Setup
D-Link DIR-855 User Manual
DNS Servers: Enter the Primary and Secondary DNS Server Addresses
(Static L2TP only).
Maximum Idle Time: Enter a maximum idle time during which the Internet
connection is maintained during inactivity. To disable this
feature, enable Auto-reconnect.
Reconnect Mode: Select either Always-on, On-Demand, or Manual.
Password: Enter your L2TP password and then retype the password
in the next box.
Username: Enter your L2TP username.
L2TP Server IP: Enter the Server IP provided by your ISP (optional).
L2TP Gateway: Enter the Gateway IP Address provided by your ISP.
L2TP Subnet Mask: Enter the Subnet Mask supplied by your ISP (Static only).
L2TP IP Address: Enter the L2TP IP address supplied by your ISP (Static
only).
Address Mode: Select Static if your ISP assigned you the IP address,
subnet mask, gateway, and DNS server addresses. In most
cases, select Dynamic.
23
Choose L2TP (Layer 2 Tunneling Protocol) if your ISP uses a L2TP connection. Your ISP will provide you with a username
and password. This option is typically used for DSL services.
Section 3 - Conﬁguration
D-Link DIR-855 User Manual
24
Clone MAC The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not
Address: recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s
MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.
MTU: Maximum Transmission Unit - you may need to change the MTU for optimal performance with your speciﬁc ISP. 1400 is the
default MTU.
Section 3 - Conﬁguration
Static (assigned by ISP)
Internet Setup
D-Link DIR-855 User Manual
MAC Address: The default MAC Address is set to the Internet port’s
physical interface MAC address on the Broadband
Router. It is not recommended that you change the
default MAC address unless required by your ISP.
You can use the Clone Your PC’s MAC Address
button to replace the Internet port’s MAC address
with the MAC address of your Ethernet card.
MTU: Maximum Transmission Unit - you may need to
change the MTU for optimal performance with your
speciﬁc ISP. 1500 is the default MTU.
DNS Servers: The DNS server information will be supplied by your
ISP (Internet Service Provider.)
Default Gateway: Enter the Gateway assigned by your ISP.
Subnet Mask: Enter the Subnet Mask assigned by your ISP.
IP Address: Enter the IP address assigned by your ISP.
25
Select Static IP Address if all the Internet port’s IP information is provided to you by your ISP. You will need to enter in the IP address,
subnet mask, gateway address, and DNS address(es) provided to you by your ISP. Each IP address entered in the ﬁelds must be in the
appropriate IP form, which are four octets separated by a dot (x.x.x.x). The Router will not accept the IP address if it is not in this format.
Section 3 - Conﬁguration
802.11n/g (2.4GHz)
Wireless Settings
D-Link DIR-855 User Manual
Transmission Rate: Select the transmit rate. It is strongly suggested to select Best (Auto) for best performance.
26
Wireless Channel: Indicates the channel setting for the DIR-855. By default the channel is set to 6. The Channel can be changed to ﬁt the
channel setting for an existing wireless network or to customize the wireless network. If you enable Auto Channel Scan,
this option will be greyed out.
Enable Auto The Auto Channel Scan setting can be selected to allow the DIR-855 to choose the channel with the least amount of
Channel Scan: interference.
802.11 Mode: Select one of the following:
802.11g Only - Select if all of your wireless clients are
802.11g.
Mixed 802.11n and 802.11g - Select if you are using both
802.11n and 802.11g wireless clients.
802.11n Only - Select only if all of your wireless clients
are 802.11n.
Wireless Network Service Set Identiﬁer (SSID) is the name of your wireless
Name: network. Create a name using up to 32 characters. The
SSID is case-sensitive.
Schedule: Select the time frame that you would like your wireless
network enabled. The schedule may be set to Always. Any
schedule you create will be available in the drop-down
menu. Click Add New to create a new schedule.
Enable Wireless: Check the box to enable the wireless function. If you do
not want to use wireless, uncheck the box to disable all
the wireless functions.
Section 3 - Conﬁguration
D-Link DIR-855 User Manual
Wireless Security: Refer to page 67 for more information regarding wireless security.
27
Visibility Status: Select Invisible if you do not want the SSID of your wireless network to be broadcasted by the DIR-855. If Invisible is
selected, the SSID of the DIR-855 will not be seen by Site Survey utilities so your wireless clients will have to know the
SSID of your DIR-855 in order to connect to it.
Channel Width: Select the Channel Width:
Auto 20/40 - This is the default setting. Select if you are using both 802.11n and non-802.11n wireless devices.
20MHz - Select if you are not using any 802.11n wireless clients.
Section 3 - Conﬁguration
802.11n/a (5GHz)
Wireless Settings
D-Link DIR-855 User Manual
Transmission Rate: Select the transmit rate. It is strongly suggested to select Best (Auto) for best performance.
28
Wireless Channel: Indicates the channel setting for the DIR-855. By default the channel is set to 6. The Channel can be changed to ﬁt the
channel setting for an existing wireless network or to customize the wireless network. If you enable Auto Channel Scan,
this option will be greyed out.
Enable Auto The Auto Channel Scan setting can be selected to allow the DIR-855 to choose the channel with the least amount of
Channel Scan: interference.
802.11 Mode: Select one of the following:
802.11a Only - Select if all of your wireless clients are
802.11a.
Mixed 802.11n and 802.11a - Select if you are using both
802.11n and 802.11a wireless clients.
802.11n Only - Select only if all of your wireless clients
are 802.11n.
Wireless Network Service Set Identiﬁer (SSID) is the name of your wireless
Name: network. Create a name using up to 32 characters. The
SSID is case-sensitive.
Schedule: Select the time frame that you would like your wireless
network enabled. The schedule may be set to Always. Any
schedule you create will be available in the drop-down
menu. Click Add New to create a new schedule.
Enable Wireless: Check the box to enable the wireless function. If you do
not want to use wireless, uncheck the box to disable all
the wireless functions.
Section 3 - Conﬁguration
D-Link DIR-855 User Manual
Wireless Security: Refer to page 67 for more information regarding wireless security.
29
Visibility Status: Select Invisible if you do not want the SSID of your wireless network to be broadcasted by the DIR-855. If Invisible is
selected, the SSID of the DIR-855 will not be seen by Site Survey utilities so your wireless clients will have to know the
SSID of your DIR-855 in order to connect to it.
Channel Width: Select the Channel Width:
Auto 20/40 - This is the default setting. Select if you are using both 802.11n and non-802.11n wireless devices.
20MHz - Select if you are not using any 802.11n wireless clients.
Section 3 - Conﬁguration
Network Settings
D-Link DIR-855 User Manual
Enable DNS Relay: Uncheck the box to transfer the DNS server information
from your ISP to your computers. If checked, your
computers will use the router for a DNS server.
Local Domain: Enter the Domain name (Optional).
Subnet Mask: Enter the Subnet Mask. The default subnet mask is
255.255.255.0.
If you change the IP address, once you click Apply,
you will need to enter the new IP address in your
browser to get back into the conﬁguration utility.
Router IP Address: Enter the IP address of the router. The default IP
address is 192.168.0.1.
LAN Settings
This section will allow you to change the local network settings of the router and to conﬁgure the DHCP settings.
Section 3 - Conﬁguration
30
DHCP Server Settings
D-Link DIR-855 User Manual
Add DHCP Refer to the next page for the DHCP Reservation
Reservation: function.
Always Broadcast: Check to send a “keep alive” which may be required
for some DHCP clients.
DHCP Lease Time: The length of time for the IP address lease. Enter the
Lease time in minutes.
Note: If you statically (manually) assign IP addresses
to your computers or devices, make sure the IP
addresses are outside of this range or you may have
an IP conﬂict.
DHCP IP Address Enter the starting and ending IP addresses for the
Range: DHCP server’s IP assignment.
Enable DHCP Check this box to enable the DHCP server on your
Server: router. Uncheck to disable this function.
31
DHCP stands for Dynamic Host Control Protocol. The DIR-855 has a built-in DHCP server. The DHCP Server will
automatically assign an IP address to the computers on the LAN/private network. Be sure to set your computers to be
DHCP clients by setting their TCP/IP settings to “Obtain an IP Address Automatically.” When you turn your computers
on, they will automatically load the proper TCP/IP settings provided by the DIR-855. The DHCP Server will automatically
allocate an unused IP address from the IP address pool to the requesting computer. You must specify the starting and
ending address of the IP address pool.
Section 3 - Conﬁguration
DHCP Reservation
D-Link DIR-855 User Manual
Save: Click Save to save your entry. You must click Save
Settings at the top to activate your reservations.
Copy Your PC’s MAC If you want to assign an IP address to the computer
Address: you are currently on, click this button to populate
the ﬁelds.
MAC Address: Enter the MAC address of the computer or
device.
IP Address: Enter the IP address you want to assign to the
computer or device. This IP Address must be within
the DHCP IP Address Range.
Computer Name: Enter the computer name or select from the dropdown menu and click <<.
Enable: Check this box to enable the reservation.
Note: This IP address must be within the DHCP IP Address Range.
32
If you want a computer or device to always have the same IP address assigned, you can create a DHCP reservation.
The router will assign the IP address only to that computer or device.
Section 3 - Conﬁguration
Virtual Server
D-Link DIR-855 User Manual
For a list of ports for common applications, please visit http://support.dlink.com/faq/view.asp?prod_id=1191.
33
Each virtual service that is created will be listed at the bottom of the screen in the Virtual Servers List. There are
pre-deﬁned virtual services already in the table. You may use them by enabling them and assigning the server IP to
use that particular virtual service.
The DIR-855 is also capable of port-redirection meaning incoming trafﬁc to a particular port may be redirected to a
different port on the server computer.
The DIR-855 ﬁrewall feature ﬁlters out unrecognized packets to protect your LAN network so all computers networked
with the DIR-855 are invisible to the outside world. If you wish, you can make some of the LAN computers accessible
from the Internet by enabling Virtual Server. Depending on the requested service, the DIR-855 redirects the external
service request to the appropriate server within the LAN network.
The DIR-855 can be conﬁgured as a virtual server so that remote users accessing Web or FTP services via the public
IP address can be automatically redirected to local servers in the LAN (Local Area Network).
Section 3 - Conﬁguration
D-Link DIR-855 User Manual
Inbound Filter: Select Allow All (most common) or a created
Inbound ﬁlter. You may create your own inbound
ﬁlters in the Advanced > Inbound Filter page.
Schedule: The schedule of time when the Virtual Server
Rule will be enabled. The schedule may be set
to Always, which will allow the particular service
to always be enabled. You can create your own
times in the Tools > Schedules section.
Protocol Type: Select TCP, UDP, or Both from the drop-down
menu.
Private Port/ Enter the port that you want to open next to
Public Port: Private Port and Public Port. The private and
public ports are usually the same. The public
port is the port seen from the Internet side, and
the private port is the port being used by the
application on the computer within your local
network.
IP Address: Enter the IP address of the computer on your
local network that you want to allow the incoming
service to. If your computer is receiving an IP
address automatically from the router (DHCP),
you computer will be listed in the “Computer
Name” drop-down menu. Select your computer
and click <<.
Name: Enter a name for the rule or select an application
from the drop-down menu. Select an application
and click << to populate the ﬁelds.
This will allow you to open a single port. If you would like to open a range of ports, refer to page 35.
Section 3 - Conﬁguration
34
Port Forwarding
D-Link DIR-855 User Manual
Inbound Filter: Select Allow All (most common) or a created
Inbound ﬁlter. You may create your own inbound
ﬁlters in the Advanced > Inbound Filter page.
Schedule: The schedule of time when the Virtual Server
Rule will be enabled. The schedule may be set
to Always, which will allow the particular service
to always be enabled. You can create your own
times in the Tools > Schedules section.
Example: 24,1009,3000-4000
TCP/UDP: Enter the TCP and/or UDP port or ports that you
want to open. You can enter a single port or a
range of ports. Seperate ports with a common.
IP Address: Enter the IP address of the computer on your
local network that you want to allow the incoming
service to. If your computer is receiving an IP
address automatically from the router (DHCP),
you computer will be listed in the “Computer
Name” drop-down menu. Select your computer
and click <<.
Name: Enter a name for the rule or select an application
from the drop-down menu. Select an application
and click << to populate the ﬁelds.
This will allow you to open a single port or a range of ports.
Section 3 - Conﬁguration
35
Application Rules
D-Link DIR-855 User Manual
Schedule: The schedule of time when the Application Rule
will be enabled. The schedule may be set to
Always, which will allow the particular service
to always be enabled. You can create your own
times in the Tools > Schedules section.
Trafﬁc Type: Select the protocol of the ﬁrewall port (TCP,
UDP, or Both).
Firewall: This is the port number on the Internet side
that will be used to access the application. You
may deﬁne a single port or a range of ports.
You can use a comma to add multiple ports or
port ranges.
Trafﬁc Type: Select the protocol of the trigger port (TCP,
UDP, or Both).
Trigger: This is the port used to trigger the application. It
can be either a single port or a range of ports.
Name: Enter a name for the rule. You may select a
pre-deﬁned application from the drop-down
menu and click <<.
36
The DIR-855 provides some predeﬁned applications in the table on the bottom of the web page. Select the application
you want to use and enable it.
Some applications require multiple connections, such as Internet gaming, video conferencing, Internet telephony and
others. These applications have difﬁculties working through NAT (Network Address Translation). Special Applications
makes some of these applications work with the DIR-855. If you need to run applications that require multiple connections,
specify the port normally associated with an application in the “Trigger Port” ﬁeld, select the protocol type as TCP or
UDP, then enter the ﬁrewall (public) ports associated with the trigger port to open them for inbound trafﬁc.
Section 3 - Conﬁguration
QoS Engine
D-Link DIR-855 User Manual
Detected xDSL: When Connection Type is set to automatic, the automatically detected connection type is displayed here.
37
Connection Type: By default, the router automatically determines whether the underlying connection is an xDSL/Frame-relay network or some
other connection type (such as cable modem or Ethernet), and it displays the result as Detected xDSL or Frame Relay Network.
If you have an unusual network connection in which you are actually connected via xDSL but for which you conﬁgure either
“Static” or “DHCP” in the Internet settings, setting this option to xDSL or Other Frame Relay Network ensures that the router
will recognize that it needs to shape trafﬁc slightly differently in order to give the best performance. Choosing xDSL or Other
Frame Relay Network causes the measured uplink speed to be reported slightly lower than before on such connections, but
gives much better results.
Manual Uplink The speed at which data can be transferred from the router to your ISP. This is determined by your ISP. ISP’s often speed as
Speed: a download/upload pair. For example, 1.5Mbits/284Kbits. Using this example, you would enter 284. Alternatively you can test
your uplink speed with a service such as www.dslreports.com.
Measured Uplink This displays the detected uplink speed.
Speed:
Automatic Uplink This option is enabled by default when the QoS
Speed: Engine option is enabled. This option will allow
your router to automatically determine the uplink
speed of your Internet connection.
Dynamic This option should be enabled when you have a
Fragmentation: slow Internet uplink. It helps to reduce the impact
that large low priority network packets can have
on more urgent ones.
Enable This option is disabled by default. Enable this
StreamEngine: option for better performance and experience with
online games and other interactive applications,
such as VoIP.
The QoS Engine option helps improve your network gaming performance by prioritizing applications. By default the
QoS Engine settings are disabled and application priority is not classiﬁed automatically.
Section 3 - Conﬁguration
Network Filters
D-Link DIR-855 User Manual
Clear: Click to remove the MAC address.
DHCP Client: Select a DHCP client from the drop-down menu
and click << to copy that MAC Address.
To find the MAC address on a computer,
please refer to the Networking Basics section
in this manual.
MAC Address: Enter the MAC address you would like to
ﬁlter.
Conﬁgure MAC Select Turn MAC Filtering Off, Allow MAC
Filtering: addresses listed below, or Deny MAC
addresses listed below from the drop-down
menu.
38
Use MAC (Media Access Control) Filters to allow or deny LAN (Local Area Network) computers by their MAC addresses
from accessing the Network. You can either manually add a MAC address or select the MAC address from the list of
clients that are currently connected to the Broadband Router.
Section 3 - Conﬁguration
Access Control
D-Link DIR-855 User Manual
Click Next to continue with the wizard.
Access Control Wizard
Add Policy: Click the Add Policy button to start the Access
Control Wizard.
39
The Access Control section allows you to control access in and out of your network. Use this feature as Parental Controls
to only grant access to approved sites, limit web access based on time or dates, and/or block access from applications
like P2P utilities or games.
Section 3 - Conﬁguration
Access Control Wizard (continued)
D-Link DIR-855 User Manual
• Address Type - Select IP address, MAC address, or
Other Machines.
• IP Address - Enter the IP address of the computer
you want to apply the rule to.
Enter the following information and then click Next to
continue.
Select a schedule (I.E. Always) from the drop-down menu
and then click Next to continue.
Enter a name for the policy and then click Next to continue.
Section 3 - Conﬁguration
40
Access Control Wizard (continued)
D-Link DIR-855 User Manual
Click Save to save the access control rule.
To enable web logging, click Enable.
Enter the rule:
Enable - Check to enable the rule.
Name - Enter a name for your rule.
Dest IP Start - Enter the starting IP address.
Dest IP End - Enter the ending IP address.
Protocol - Select the protocol.
Dest Port Start - Enter the starting port number.
Dest Port End - Enter the ending port number.
Select the ﬁltering method and then click Next to continue.
Section 3 - Conﬁguration
41
Website Filters
D-Link DIR-855 User Manual
Website URL/ Enter the keywords or URLs that you want to
Domain: allow or block. Click Save Settings.
Add Website Select Allow or Deny.
Filtering Rule:
42
Website Filters are used to allow you to set up a list of allowed Web sites that can be used by multiple users through
the network. To use this feature select to Allow or Deny, enter the domain or website and click Save Settings. You
must also select Apply Web Filter under the Access Control section (page 39).
Section 3 - Conﬁguration
Inbound Filters
D-Link DIR-855 User Manual
Inbound Filter This section will list any rules that are created.
Rules List: You may click the Edit icon to change the
settings or enable/disable the rule, or click
the Delete icon to remove the rule.
Add: Click the Add button to apply your settings.
You must click Save Settings at the top to
save the settings.
Remote IP End: Enter the ending IP address. Enter
255.255.255.255 if you do not want to
specify and IP range.
Remote IP Start: Enter the starting IP address. Enter 0.0.0.0
if you do not want to specify an IP range.
Enable: Check to enable rule.
Action: Select Allow or Deny.
Name: Enter a name for the inbound ﬁlter rule.
43
The Inbound Filter option is an advanced method of controlling data received from the Internet. With this feature you
can conﬁgure inbound data ﬁltering rules that control data based on an IP address range. Inbound Filters can be used
with Virtual Server, Port Forwarding, or Remote Administration features.
Section 3 - Conﬁguration
Firewall Settings
D-Link DIR-855 User Manual
44
DMZ IP Address: Specify the IP address of the computer on the LAN that you want to have unrestricted Internet communication. If this computer
obtains it’s IP address automatically using DHCP, be sure to make a static reservation on the Basic > DHCP page so that
the IP address of the DMZ machine does not change.
Note: Placing a computer in the DMZ may expose that computer to
a variety of security risks. Use of this option is only recommended
as a last resort.
Enable DMZ: If an application has trouble working from behind the router, you
can expose one computer to the Internet and run the application
on that computer.
Anti-Spoof Check: Enable this feature to protect your network from certain kinds of
“spooﬁng” attacks.
Address + Port Restriction - Incoming trafﬁc must match the IP
address and port of the outgoing connection.
Address Restricted - Incoming trafﬁc must match the IP address
of the outgoing connection.
NAT Endpoint Select one of the following for TCP and UDP ports:
Filtering: Endpoint Independent - Any incoming trafﬁc sent to an open port
will be forwarded to the application that opened the port. The port
will close if idle for 5 minutes.
Enable SPI: SPI (Stateful Packet Inspection, also known as dynamic packet
ﬁltering) helps to prevent cyber attacks by tracking more state per
session. It validates that the trafﬁc passing through the session
conforms to the protocol.
A ﬁrewall protects your network from the outside world. The DIR-855 offers a ﬁrewall type functionality. The SPI feature
helps prevent cyber attacks. Sometimes you may want a computer exposed to the outside world for certain types of
applications. If you choose to expose a computer, you can enable DMZ. DMZ is short for Demilitarized Zone. This option
will expose the chosen computer completely to the outside world.
Section 3 - Conﬁguration
Application Level Gateway (ALG) Conﬁguration
D-Link DIR-855 User Manual
45
SIP: Allows devices and applications using VoIP (Voice over IP) to communicate across NAT. Some VoIP applications and devices
have the ability to discover NAT devices and work around them. This ALG may interfere with the operation of such devices.
If you are having trouble making VoIP calls, try turning this ALG off.
RTSP: Allows application that uses Real Time Streaming Protocol to receive streaming media from the Internet. QuickTime and
Real Player are some of the common applications using this protocol.
IPSEC (VPN): Allows multiple VPN clients to connect to their corporate network using IPSec. Some VPN clients support traversal of IPSec
through NAT. This ALG may interfere with the operation of such VPN clients. If you are having trouble connecting with your
corporate network, try turning this ALG off. Please check with the system administrator of your corporate network whether
your VPN client supports NAT traversal.
PPTP: Allows multiple machines on the LAN to connect to their corporate network using PPTP protocol.
Here you can enable or disable ALG’s. Some protocols and applications require special handling of the IP payload to
make them work with network address translation (NAT). Each ALG provides special handling for a speciﬁc protocol
or application. A number of ALGs for common applications are enabled by default.
Section 3 - Conﬁguration
Routing
D-Link DIR-855 User Manual
Interface: Select the interface that the IP packet must
use to transit out of the router when this route
is used.
Metric: The route metric is a value from 1 to 16 that
indicates the cost of using this route. A value 1
is the lowest cost and 15 is the highest cost.
Gateway: Enter your next hop gateway to be taken if this
route is used.
Netmask: Enter the netmask of the route, please note
that the octets must match your destination
IP address.
Destination IP: Enter the IP address of packets that will take
this route.
The Routing option is an advanced method of customizing speciﬁc routes of data through your network.
Section 3 - Conﬁguration
46

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D Link DIR855A2 Xtreme N DUO MEDIA ROUTER User Manual User s manual rev 1

D Link Corporation Xtreme N DUO MEDIA ROUTER User s manual rev 1

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