D Link DIR635B3 RANGEBOOSTER N 650 Router User Manual Manual
D Link Corporation RANGEBOOSTER N 650 Router Manual
  
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2D-Link DIR-635 User Manual
Table of Contents
Product Overview ........................................................ 4
Package Contents ...................................................4
System Requirements ............................................. 4
Introduction ..............................................................5
Features .................................................................. 6
Hardware Overview ................................................. 7
Connections .......................................................7
LEDs ..................................................................8
Installation .................................................................... 9
Before you Begin .....................................................9
Wireless Installation Considerations ...................... 10
Getting Started ......................................................11
Conguration ............................................................. 12
Web-based Conguration Utility ............................ 12
Setup Wizard ...................................................13
Manual Conguration .......................................17
Dynamic (Cable) ..........................................17
PPPoE (DSL) ............................................... 18
PPTP ............................................................19
L2TP .............................................................21
Static (assigned by ISP) ............................... 23
Big Pond .......................................................24
Wireless Settings .............................................25
Network Settings .............................................. 27
DHCP Server Settings .................................28
DHCP Reservation ....................................... 29
Virtual Server ...................................................30
Port Forwarding ............................................... 32
Application Rules .............................................33
QoS Engine ..................................................... 34
Network Filters ................................................. 36
Access Control ................................................. 37
Access Control Wizard ................................. 37
Website Filters .................................................40
Inbound Filters .................................................41
Firewall Settings ..............................................42
ALG Conguration ........................................... 43
VPN Passthrough ......................................... 43
RTSP ............................................................ 43
H.323 ............................................................43
SIP (VoIP) .................................................... 43
MMS ............................................................. 43
Router Settings ................................................44
Advanced Wireless Settings ............................45
Transmit Power ............................................ 45
802.11d Mode .............................................. 45
WISH Settings ................................................. 46
Wi-Fi Protected Setup ...................................... 48
Advanced Network Settings ............................. 50
UPnP ............................................................50
Internet Ping Block ....................................... 50
Internet Port Speed ......................................50
Multicast Streams ......................................... 50
Table of Contents

3D-Link DIR-635 User Manual
Table of Contents
Administrator Settings ...................................... 51
Change Password ........................................ 51
Remote Management ................................... 51
Time Settings ................................................... 52
SysLog ............................................................. 53
Email Settings .................................................. 54
System Settings ............................................... 55
Update Firmware ............................................. 56
DDNS ............................................................... 57
System Check .................................................. 58
Schedules ........................................................ 59
Device Information ........................................... 60
Logs ................................................................. 61
Statistics ..........................................................62
Internet Sessions ............................................. 62
Wireless ........................................................... 63
WISH Sessions ................................................ 63
Support ............................................................ 64
Wireless Security.......................................................65
What is WEP? .......................................................65
What is WPA? .......................................................66
Wireless Security Setup Wizard ............................ 67
Congure WEP ......................................................70
Congure WPA-Personal (PSK) ............................71
Congure WPA-Enterprise (RADIUS) ................... 72
Connect to a Wireless Network ................................ 74
Using Windows® XP ............................................... 74
Congure WEP ......................................................75
Congure WPA-PSK .............................................77
Troubleshooting ........................................................ 79
Wireless Basics ......................................................... 83
What is Wireless? ..................................................84
Tips ........................................................................ 86
Wireless Modes ..................................................... 87
Networking Basics .................................................... 88
Check your IP address ..........................................88
Statically Assign an IP address ............................. 89
Technical Specications........................................... 90

4D-Link DIR-635 User Manual
Section 1 - Product Overview
• D-Link DIR-635 RangeBooster N™ 650
• 3 Detachable Antennas
• Power Adapter
• CAT5 Ethernet Cable
• CD-ROM with Installation Wizard, User Manual, 
and Special Offers
System Requirements
• Ethernet-based Cable or DSL Modem
• Computers with Windows®, Macintosh®, or Linux-based  operating systems with an installed Ethernet 
adapter
• Internet Explorer Version 6.0, Mozilla 1.7.12 (5.0), or Firefox 1.5 and above (for conguration)
• Installation Wizard requires Windows® XP with Service Pack 2
Package Contents
Note: Using a power supply with a different voltage rating than the one included 
with the DIR-635 will cause damage and void the warranty for this product.

5D-Link DIR-635 User Manual
Section 1 - Product Overview
Introduction
TOTAL PERFORMANCE
Combines award winning router features and Draft 802.11n wireless technology to provide the best wireless performance
TOTAL SECURITY
The  most  complete  set  of  security  features  including  Active  Firewall  and  WPA2  to  protect  your  network  against  outside 
intruders
TOTAL COVERAGE
Provides greater wireless signal rates even at farther distances for best-in-class Whole Home Coverage.
ULTIMATE PERFORMANCE
The D-Link RangeBooster N™ 650 (DIR-635) is a draft 802.11n 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, les, music, video, printers, and network storage throughout your home. Connect the RangeBooster 
N™ 650 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.
EXTENDED WHOLE HOME COVERAGE
Powered by RangeBooster N™ technology, this high performance router provides superior Whole Home Coverage while reducing 
dead spots. The RangeBooster N™ 650 is designed for use in bigger homes and for users who demand higher performance 
networking. Add a RangeBooster N™ 650 notebook or desktop adapter and stay connected to your network from virtually 
anywhere in your home.
TOTAL NETWORK SECURITY
The RangeBooster N™ 650 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 RangeBooster N™ 650 utilizes dual active rewalls (SPI 
and NAT) to prevent potential attacks from across the Internet.
* Maximum wireless signal rate derived from IEEE Standard 802.11g and Draft 802.11n specications. Actual data throughput will vary. Network conditions and 
environmental factors, including volume of network trafc, building materials and construction, and network overhead, lower actual data throughput rate. Environmental 
conditions will adversely affect wireless signal range.

6D-Link DIR-635 User Manual
Section 1 - Product Overview
• Faster Wireless Networking - The DIR-635 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 14x faster than 802.11g.
• Compatible with 802.11b and 802.11g Devices - The DIR-635 is still fully compatible with the IEEE 
802.11b standard, so it can connect with existing 802.11b PCI, USB and Cardbus adapters.
• LCD Display - The LCD display screen provides information regarding the router.
• Advanced Firewall Features - The Web-based user interface displays a number of advanced network 
management features including: 
• Content Filtering - Easily applied content ltering  based on MAC Address, URL,  and/or 
Domain Name.
• Filter Scheduling - These  lters can  be scheduled to be active on certain days or  for a 
duration of hours or minutes.
• Secure Multiple/Concurrent Sessions - The DIR-635 can pass through VPN sessions. It 
supports multiple and concurrent IPSec and PPTP sessions, so users behind the DIR-635 
can securely access corporate networks.
• User-friendly Setup Wizard - Through its easy-to-use Web-based user interface, the DIR-635 lets you 
control what information is accessible to those on the wireless network, whether from the Internet or from 
your company’s server. Congure your router to your specic settings within minutes.
* Maximum wireless signal rate derived from IEEE Standard 802.11g and Draft 802.11n specications. Actual data throughput will vary. Network conditions and 
environmental factors, including volume of network trafc, building materials and construction, and network overhead, lower actual data throughput rate. Environmental 
conditions will adversely affect wireless signal range.
Features

7D-Link DIR-635 User Manual
Section 1 - Product Overview
USB 
Connect  a  USB  1.1 or  2.0  ash 
drive  to  congure  the  wireless 
settings using WCN.
Reset 
Pressing  the  Reset  button  restores 
the router to its original factory default 
settings.
LAN Ports (1-4) 
Connect  Ethernet  devices  such  as 
computers, switches, and hubs.
Internet Port 
The auto MDI/MDIX Internet port is 
the connection for the Ethernet cable 
to the cable or DSL modem.
Power Receptor
Receptor for the supplied power 
adapter.
Hardware Overview
Connections

8D-Link DIR-635 User Manual
Section 1 - Product Overview
Hardware Overview
LEDs
WLAN LED 
A solid light indicates that the wireless 
segment  is  ready.  This  LED  blinks 
during wireless data transmission.
Status LED
A blinking light indicates that the        
DIR-635 is ready.
Internet LED 
A solid light indicates connection on the 
Internet  port.  This  LED  blinks  during 
data transmission.
Power LED 
A  solid  light  indicates  a 
proper  connection  to  the 
power supply.
Local Network LEDs 
A  solid  light  indicates  a  connection  to  an 
Ethernet-enabled  computer  on  ports  1-4. 
This LED blinks during  data transmission.
WCN LED 
Insert  a  USB  ash  drive  with  WCN 
information. The LED will blink 3 times 
if it successfully transfers the wireless 
settings.

9D-Link DIR-635 User Manual
Section 2 - Installation
Before you Begin
Installation
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. 
Please congure the router with the computer that was last connected directly to your modem. Also, 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). 
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.

10D-Link DIR-635 User Manual
Section 2 - Installation
Wireless Installation Considerations
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:
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.
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.
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 
(sh tanks), mirrors, le cabinets, brick, and concrete will degrade your wireless signal.
4. Keep your product  away (at least 3-6 feet  or 1-2  meters) from electrical  devices or appliances that 
generate RF noise.
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.

11D-Link DIR-635 User Manual
Section 2 - Installation
The DIR-635 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. 
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.
If the CD Autorun function does not automatically start on your computer, go to Start > Run. In the run box type 
“D:\Autorun.exe” (where D: represents the drive letter of your CD-ROM drive).
When the autorun screen appears, click the orange Install 
Router button.
Getting Started
Note: It is reccomended to write down the SSID and Security Key, followed by the login password on the provided CD 
holder.

12D-Link DIR-635 User Manual
Section 3 - Configuration
Configuration
This  section  will  show  you  how  to  congure  your  new  D-Link  wireless  router  using  the  web-based  conguration 
utility.
Web-based Configuration Utility
To access the conguration utility, open a web-browser 
such as Internet Explorer and enter the IP address of 
the router (192.168.0.1).
Select Admin from the drop-down menu and then enter 
your password. Leave the password blank by default.
If you get a Page Cannot be Displayed error, please 
refer to the Troubleshooting section for assistance.

13D-Link DIR-635 User Manual
Section 3 - Configuration
Setup Wizard
You may click Setup Wizard to quickly congure your router.
If you want to enter your settings without running the wizard, click 
Manual Conguration and skip to page 17.
Click Launch Internet Connection Setup Wizard to begin.
If you want to congure your wireless settings, click Launch Wireless 
Security Setup Wizard and skip to page 65.
Click Next to continue.

14D-Link DIR-635 User Manual
Section 3 - Configuration
Create a new password and then click Next to continue.
Select your time zone from the drop-down menu and then click Next 
to continue.
Select the type of Internet connection you use and then click Next 
to continue.

15D-Link DIR-635 User Manual
Section 3 - Configuration
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 Clone Your PC’s MAC Address and then click 
Next to continue.
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 PPPoE, enter your PPPoE username and password. Click 
Next to continue.
Select  Static  if  your  ISP  assigned  you  the  IP  address,  subnet  mask, 
gateway, and DNS server addresses.
Note: Make sure to remove your PPPoE software from your computer. The 
software is no longer needed and will not work through a router.
If you  selected PPTP,  enter your  PPTP username  and password. Click 
Next to continue.

16D-Link DIR-635 User Manual
Section 3 - Configuration
If you selected L2TP, enter your L2TP username and password. Click Next 
to continue.
If you selected Static, enter your network settings supplied by your Internet 
provider. Click Next to continue.
Click Connect to save your settings. Once the router is nished rebooting, 
click Continue. Please allow 1-2 minutes to connect. 
Close your browser window and reopen it to test your Internet connection. 
It may take a few tries to initially connect to the Internet.

17D-Link DIR-635 User Manual
Section 3 - Configuration
Select Dynamic IP (DHCP) to obtain IP Address 
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.
The Host Name is optional but may be required 
by some ISPs. 
Check  the  box  if  you  are  having  problems 
obtaining an IP address from your ISP.
Enter  the  Primary  DNS  server  IP  address 
assigned by your ISP.
Maximum Transmission Unit - you may need to 
change the MTU for optimal performance with 
your specic ISP. 1500 is the default MTU.
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.
My Internet 
Connection:
Host Name:
MAC Address:
Manual Configuration
Dynamic (Cable)
DNS Addresses:
MTU:
Use Unicasting:

18D-Link DIR-635 User Manual
Section 3 - Configuration
Select PPPoE (Username/Password) from the drop-down menu.
Select Static if your ISP assigned you the IP address, subnet mask, 
gateway, and DNS server addresses. In most cases, select Dynamic.
Enter the IP address (Static PPPoE only).
Enter your PPPoE user name.
Enter your PPPoE password and then retype the password in the next 
box.
Enter the ISP Service Name (optional).
Select either Always-on, On-Demand, or Manual.
Enter the Primary and Secondary DNS Server Addresses (Static PPPoE 
only).
Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature, 
enable Auto-reconnect.
Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1492 is 
the default MTU.
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.
My Internet 
Connection:
Address Mode:
IP Address:
User Name:
Password:
Service Name:
Reconnection Mode:
Maximum Idle Time:
DNS Addresses:
MTU:
MAC Address:
Internet Setup
PPPoE (DSL)
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.

19D-Link DIR-635 User Manual
Section 3 - Configuration
Select  Static  if  your  ISP  assigned  you  the  IP  address, 
subnet  mask,  gateway,  and  DNS  server  addresses.  In 
most cases, select Dynamic.
Enter the IP address (Static PPTP only).
Enter the Primary and Secondary DNS Server Addresses 
(Static PPTP only).
Enter the Gateway IP Address provided by your ISP.
Enter the Server IP provided by your ISP (optional).
Enter your PPTP username.
Enter your PPTP password and then retype the password 
in the next box.
Select either Always-on, On-Demand, or Manual.
Enter  a  maximum  idle  time  during  which  the  Internet 
connection is maintained during inactivity. To disable this 
feature, enable Auto-reconnect.
The DNS server information will be supplied by your ISP 
(Internet Service Provider.)
Address Mode:
PPTP IP Address:
PPTP Subnet 
Mask:
PPTP Gateway:
PPTP Server IP:
Internet Setup
PPTP
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. 
Username:
Password:
Reconnect Mode:
Maximum Idle 
Time:
DNS Servers:

20D-Link DIR-635 User Manual
Section 3 - Configuration
Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1452 
is the default MTU.
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:
MAC Address:

21D-Link DIR-635 User Manual
Section 3 - Configuration
Select  Static  if  your  ISP assigned  you  the  IP  address, 
subnet  mask,  gateway,  and  DNS  server  addresses.  In 
most cases, select Dynamic.
Enter the L2TP IP address supplied by your ISP (Static 
only).
Enter  the  Subnet  Mask  supplied  by  your  ISP  (Static 
only).
Enter the Gateway IP Address provided by your ISP.
Enter the Server IP provided by your ISP (optional).
Enter your L2TP username.
Enter your L2TP password and then retype the password 
in the next box.
Select either Always-on, On-Demand, or Manual.
Enter  a  maximum  idle  time  during  which  the  Internet 
connection is maintained during inactivity. To disable this 
feature, enable Auto-reconnect.
Enter the Primary and Secondary DNS Server Addresses 
(Static L2TP only).
Address Mode:
L2TP IP Address:
L2TP Subnet Mask:
L2TP Gateway:
L2TP Server IP:
Username:
Password:
Reconnect Mode:
Maximum Idle Time: 
DNS Servers:
Internet Setup
L2TP
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. 

22D-Link DIR-635 User Manual
Section 3 - Configuration
MTU:
Clone MAC 
Address:
Maximum Transmission Unit - you may need to change the MTU for optimal performance with your specic ISP. 1464 is 
the default MTU.
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.

23D-Link DIR-635 User Manual
Section 3 - Configuration
Enter the IP address assigned by your ISP.
Enter the Subnet Mask assigned by your ISP.
Enter the Gateway assigned by your ISP.
The DNS server information will be supplied by your 
ISP (Internet Service Provider.)
Maximum  Transmission  Unit  -  you  may  need  to 
change the MTU for optimal performance with your 
specic ISP. 1500 is the default MTU.
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.
IP Address:
Subnet Mask:
Default Gateway:
DNS Servers:
MTU:
MAC Address:
Internet Setup
Static (assigned by ISP)
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 elds 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.

24D-Link DIR-635 User Manual
Section 3 - Configuration
Enter the IP address of the login server.
Enter your BigPond username.
Enter your BigPond password and then retype 
the password in the next box.
The DNS server information will be supplied 
by your ISP (Internet Service Provider.)
Maximum Transmission Unit - you may need 
to change the MTU for optimal performance 
with  your  specic  ISP.  1500  is  the  default 
MTU.
The  default  MAC  Address  is  set  to  the 
Internet’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.
BigPond Server:
BigPond Username:
BigPond Password:
DNS Servers:
MTU:
MAC Address:
Internet Setup
Big Pond

25D-Link DIR-635 User Manual
Section 3 - Configuration
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.
Service Set Identier (SSID) is the name of your 
wireless network. Create a name using up to 32 
characters. The SSID is case-sensitive.
The Auto Channel Scan setting can be selected 
to allow the DIR-635 to choose the channel with 
the least amount of interference.
Indicates  the  channel  setting  for  the  DIR-635. 
By default the channel is set to 6. The Channel 
can be changed to t 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.
Select one of the following:
802.11g  Only  -  Select  if  all  of  your  wireless 
clients are 802.11g.
Mixed  802.11g  and  802.11b  -  Select  if  you 
are  using  both  802.11b  and  802.11g  wireless 
clients.
802.11b  Only  -  Select  if  all  of  your  wireless 
clients are 802.11b.
802.11n Only - Select only if all of your wireless 
clients are 802.11n.
Mixed 802.11n, 802.11b, and 802.11g - Select if you are using a mix of 802.11n, 11g, and 11b wireless clients.
Mixed 802.11n and 802.11g - Select if you are using a mix of 802.11n and 802.11g wireless clients.
Enable Wireless:
Enable Auto 
Channel Scan:
Wireless Settings
Wireless Network 
Name:
Wireless Channel:
802.11 Mode:

26D-Link DIR-635 User Manual
Section 3 - Configuration
Select the Channel Width:
Auto 20/40 - Select if you are using both 802.11n and non-802.11n wireless devices.
20MHz - This is the default setting. Select if you are not using any 802.11n wireless clients.
Select the transmit rate. It is strongly suggested to select Best (Auto) for best performance.
Select Invisible if you do not want the SSID of your wireless network to be broadcasted by the DIR-635. If Invisible is selected, 
the SSID of the DIR-635 will not be seen by Site Survey utilities so your wireless clients will have to know the SSID of your 
DIR-635 in order to connect to it.
Refer to page 65 for more information regarding wireless security.
Visibility Status:
Wireless Security:
Transmission Rate:
Channel Width:

27D-Link DIR-635 User Manual
Section 3 - Configuration
This section will allow you to change the local network settings of the router and to congure the DHCP settings.
Network Settings
Enter  the  IP  address  of  the  router.  The  default  IP 
address is 192.168.0.1.
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 conguration utility.
Enter the Subnet Mask. The default subnet mask is 
255.255.255.0.
Enter the Domain name (Optional).
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.
IP Address:
Subnet Mask:
Local Domain:
Enable DNS Relay:

28D-Link DIR-635 User Manual
Section 3 - Configuration
Check this box to enable the DHCP server on your router. Uncheck to 
disable this function.
Enter the starting and ending IP addresses for the DHCP server’s IP 
assignment.
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 conict. 
The length of  time  for  the  IP address lease. Enter the  Lease  time  in 
minutes.
Enable this feature to broadcast your networks DHCP server to LAN/
WLAN clients.
NetBIOS allows LAN hosts to discover all other computers within the 
network, enable this feature to allow the DHCP Server to offer NetBIOS 
conguration settings.
Enable this feature to allow WINS information to be learned from the 
WAN side, disable to allow manual conguration.
This feature allows the conguration of a NetBIOS ‘domain’ name under which network hosts operates. This setting has no 
effect if the ‘Learn NetBIOS information from WAN’ is activatede.”
Select the different type oif NetBIOS node; Broadcast only, Point-to-Point, Mixed-mode and Hybrid.
Enter your WINS IP address
Enable DHCP 
Server:
DHCP IP Address 
Range:
DHCP Lease Time:
Always Broadcast:
NetBIOS 
Announcement:
Learn NetBIOS 
from WAN:
NetBIOS Scope:
NetBIOS Node:
WINS IP Address:
DHCP Server Settings
DHCP stands for Dynamic Host Control Protocol. The DIR-635 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-635. 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.

29D-Link DIR-635 User Manual
Section 3 - Configuration
DHCP Reservation
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. 
Note: This IP address must be within the DHCP IP Address Range.
Check this box to enable the reservation.
Enter  the  computer  name  or  select  from  the 
drop-down menu and click <<.
Enter the IP address you want to assign to the 
computer or device. This IP Address must be 
within the DHCP IP Address Range.
Enter  the  MAC  address  of  the  computer  or 
device.
If  you  want  to  assign  an  IP  address  to  the 
computer you are currently on, click this button 
to populate the elds. 
Click Save to save your entry. You must click 
Save  Settings  at  the  top  to  activate  your 
reservations. 
Enable:
Computer Name:
IP Address:
MAC Address:
Copy Your PC’s 
MAC Address:
Save:

30D-Link DIR-635 User Manual
Section 3 - Configuration
The DIR-635 can be congured 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). 
The DIR-635 rewall feature lters out unrecognized packets to protect your LAN network so all computers networked 
with the DIR-635 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-635 redirects the external 
service request to the appropriate server within the LAN network. 
The DIR-635 is also capable of port-redirection meaning incoming trafc to a particular port may be redirected to a 
different port on the server computer.
Each virtual service that is created will be listed at the bottom of the screen in the Virtual Servers List. There are  
pre-dened virtual services already in the table. You may use them by enabling them and assigning the server IP to 
use that particular virtual service.
For a list of ports for common applications, please visit http://support.dlink.com/faq/view.asp?prod_id=1191.
Virtual Server

31D-Link DIR-635 User Manual
Section 3 - Configuration
This will allow you to open a single port. If you would like to open a range of ports, refer to page 32.
Enter a name for the rule or select an application 
from the drop-down menu. Select an application 
and click << to populate the elds.
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 <<. 
Enter the port that you want to open next to 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.
Select TCP, UDP, or Both from the drop-down 
menu.
Select  Allow  All  (most  common)  or  a  created 
Inbound lter. You may create your own inbound 
lters in the Advanced > Inbound Filter page.
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.
Name:
IP Address:
Private Port/
Public Port:
Protocol Type:
Inbound Filter:
Schedule:

32D-Link DIR-635 User Manual
Section 3 - Configuration
This will allow you to open a single port or a range of ports.
Port Forwarding
Enter a name for the rule or select an application 
from the drop-down menu.  Select  an  application 
and click << to populate the elds.
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 <<. 
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.
Example: 24,1009,3000-4000
Select  Allow  All  (most  common)  or  a  created 
Inbound lter. You may create your own inbound 
lters in the Advanced > Inbound Filter page.
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.
Name:
IP Address:
TCP/UDP:
Inbound Filter:
Schedule:

33D-Link DIR-635 User Manual
Section 3 - Configuration
Enter  a  name for  the  rule.  You  may select  a  
pre-dened  application  from  the  drop-down 
menu and click <<.
This is the port used to trigger the application. It 
can be either a single port or a range of ports.
Select  the  protocol  of  the  trigger  port  (TCP, 
UDP, or Both).
This is the port number on the Internet side that 
will be used to access the application. You may 
dene  a  single  port  or  a  range  of  ports.  You 
can use a comma to add multiple ports or port 
ranges.
Select  the  protocol  of  the  rewall  port  (TCP, 
UDP, or Both).
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.
Name:
Trigger:
Traffic Type:
Firewall:
Traffic Type:
Schedule:
Application Rules
Some applications require multiple connections, such as Internet gaming, video conferencing, Internet telephony and 
others. These applications have difculties working through NAT (Network Address Translation). Special Applications 
makes some of these applications work with the DIR-635. If you need to run applications that require multiple connections, 
specify the port normally associated with an application in the “Trigger Port” eld, select the protocol type as TCP or 
UDP, then enter the rewall (public) ports associated with the trigger port to open them for inbound trafc.
The DIR-635 provides some predened applications in the table on the bottom of the web page. Select the application 
you want to use and enable it.

34D-Link DIR-635 User Manual
Section 3 - Configuration
QoS Engine
This  option  is  disabled  by  default.  Enable  this 
option for better performance and experience with 
online games and other interactive applications, 
such as VoIP.
This option should be enabled when you have a 
slow Internet uplink. It helps to reduce the impact 
that large low priority network packets can have 
on more urgent ones.
This option is enabled by default when the QoS 
Engine option is enabled. This option will allow 
your router to automatically determine the uplink 
speed of your Internet connection.
This displays the detected uplink speed.
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  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.
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. 
Enable QOS:
Dynamic 
Fragmentation:
Automatic Uplink 
Speed:
Measured Uplink 
Speed:
Manual Uplink 
Speed:
Connection Type:
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 classied automatically.

35D-Link DIR-635 User Manual
Section 3 - Configuration
If you have an unusual network connection in which you are actually connected via xDSL but for which you congure 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 trafc 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. 
When Connection Type is set to automatic, the automatically detected connection type is displayed here.
Detected xDSL:

36D-Link DIR-635 User Manual
Section 3 - Configuration
Network Filters
Select  Turn  MAC  Filtering  Off,  allow  MAC 
addresses listed below, or deny MAC addresses 
listed below from the drop-down menu. 
Enter  the  MAC  address  you  would  like  to 
lter.
To nd the MAC address on a computer, please 
refer to the Networking Basics section in this 
manual. 
Select a DHCP client from the drop-down menu 
and click << to copy that MAC Address. 
Configure MAC 
Filtering:
MAC Address:
DHCP Client:
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.

37D-Link DIR-635 User Manual
Section 3 - Configuration
Access Control
Click the Add Policy button to start the Access 
Control Wizard. 
Add Policy:
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.
Click Next to continue with the wizard.
Access Control Wizard

38D-Link DIR-635 User Manual
Section 3 - Configuration
Enter a name for the policy and then click Next to continue.
Access Control Wizard (continued)
Select a schedule (I.E. Always) from the drop-down menu 
and then click Next to continue.
Enter  the  following  information  and  then  click  Next  to 
continue.
• 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.

39D-Link DIR-635 User Manual
Section 3 - Configuration
Select the ltering method and then click Next to continue.
Access Control Wizard (continued)
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.
To enable web logging, click Enable.
Click Save to save the access control rule.

40D-Link DIR-635 User Manual
Section 3 - Configuration
Enter the keywords or URLs that you want to 
allow. Any unlisted URL with the keyword will 
be blocked.
Website URL/
Domain:
Website Filters
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. When Web Filter is enabled, all Web sites not listed on this page will be blocked. To use this feature enter 
the text string of allowed websites and click Save Settings. You must also select Apply Web Filter under the Access 
Control section. To delete the text, click Clear the list Below.

41D-Link DIR-635 User Manual
Section 3 - Configuration
Enter a name for the inbound lter rule.
Select Allow or Deny.
Check to enable rule.
Enter the starting IP address. Enter 0.0.0.0 if 
you do not want to specify an IP range.
Enter  the  ending  IP  address.  Enter 
255.255.255.255 if you do not want to specify 
and IP range.
Click the Save button to apply your settings. 
You  must  click  Save  Settings  at  the  top  to 
save the settings.
This section will list any rules that are created. 
You  may  click  the  Edit  icon  to  change  the 
settings or enable/disable the rule, or click the 
Delete icon to remove the rule.
Name:
Action:
Enable:
Source IP Start:
Source IP End:
Save:
Inbound Filter 
Rules List:
The Inbound Filter option is an advanced method of controlling data received from the Internet. With this feature you 
can congure inbound data ltering rules that control data based on an IP address range.  Inbound Filters can be used 
with Virtual Server, Port Forwarding, or Remote Administration features.
Inbound Filters

42D-Link DIR-635 User Manual
Section 3 - Configuration
SPI  (Stateful  Packet  Inspection,  also  known  as  dynamic  packet 
ltering) helps to prevent cyber attacks by tracking more state per 
session.  It  validates  that  the  trafc  passing  through  the  session 
conforms to the protocol.
Select one of the following for TCP and UDP ports:
Endpoint Independent - Any incoming trafc sent to an open port 
will be forwarded to the application that opened the port. The port 
will close if idle for 5 minutes.
Address Restricted - Incoming trafc must match the IP address 
of the outgoing connection.
Address and Port Restriction - Incoming trafc must match the 
IP address and port of the outgoing connection.
Enable this  feature to protect  your network from  certain kinds of 
“spoong” attacks.
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.  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.
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.
Enable this feature to allow the router’ NAT to track application that uses protocols other than UDP, TCP or ICMP.
Enable SPI:
NAT Endpoint 
Filtering:
Anti-Spoof 
Checking:
Enable DMZ Host:
IP Address:
Non-UDP/TCP/ICMP 
LAN Sessions:
Firewall Settings
A rewall protects your network from the outside world. The D-Link DIR-635 offers a rewall type functionality. 

43D-Link DIR-635 User Manual
Section 3 - Configuration
VPN Passthrough
RTSP
H.323
SIP (VoIP)
MMS
Application Level Gateway (ALG) Configuration
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 specic protocol 
or application. A number of ALGs for common applications are enabled by default.
Allows multiple machines on the LAN to connect to their corporate network using PPTP protocol. 
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 adminstrator of your corporate network whether 
your VPN client supports NAT traversal.
Allows applications that use Real Time Streaming Protocol to receive streaming media from the internet. QuickTime and 
Real Player are some of the common applications using this protocol. 
Allows all of the Windows/MSN Messenger functions to work properly through the router.
Allows FTP clients and servers to transfer data across NAT. Refer to the Advanced > Virtual Server page if you want to 
host an FTP server. 
Allows Microsoft NetMeeting clients to communicate across NAT. Note that if you want your buddies to call you, you should 
also set up a virtual server for NetMeeting. Refer to the Advanced > Virtual Server page for information on how to set up 
a virtual server. 
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. 
Allows Ethernet network adapters with Wake-On-LAN (WOL) to function.
Allows Windows Media Player, using MMS protocol, to receive streaming media from the Internet. 
PPTP:
IPSEC (VPN):
RTSP:
MSN Messenger:
FTP:
H.323 
(Netmeeting):
SIP:
Wake-On-LAN:
MMS:

44D-Link DIR-635 User Manual
Section 3 - Configuration
Enter the IP address of packets that will take 
this route.
Enter the netmask of the route, please note 
that  the  octets must  match  your  destination 
IP address.
Enter your next hop gateway to be taken if this 
route is used.
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. 
Select the  interface that the IP packet must 
use to transit out of the router when this route 
is used. 
Destination IP:
Netmask:
Gateway:
Metric:
Interface:
Router Settings
The Routing option is an advanced method of customizing specic routes of data through your network.

45D-Link DIR-635 User Manual
Section 3 - Configuration
Set the transmit power of the antennas.
Beacons are packets sent by an Access Point to 
synchronize a wireless network. Specify a value. 
100 is the default setting and is recommended. 
This value should remain at its default setting of 
2346. If inconsistent data ow is a problem, only 
a minor modication should be made.
The fragmentation threshold, which is specied 
in  bytes,  determines  whether  packets  will  be 
fragmented. Packets exceeding the 2346 byte 
setting will be fragmented before transmission. 
2346 is the default setting. 
(Delivery  Trafc  Indication  Message)  3  is  the 
default setting. A DTIM is a countdown informing 
clients  of  the  next  window  for  listening  to 
broadcast and multicast messages.
This enables 802.11d opration. 802.11d is a wireless specication developed to allow implementation of wireless networks in 
countries that cannot use the 802.11 standard. This feature should only be enabled if you are in a country that requires it.
WLAN Partition prevents associated wireless clients from communicating with each other. 
WMM  is  QoS  for  your  wireless  network.  This  will  improve  the  quality  of  video  and  voice  applications  for  your  wireless 
clients.
Check this box to reduce the guard interval time therefore increasing the data capacity.  However, it’s less reliable and may 
create higher data loss.
Extra protection for neighboring 11b wireless networks. Turn this option off to reduce the adverse effect of legacy wireless 
networks on 802.11ng performance. This option is available only when 802.11 Mode is set to 802.11ng only.
Transmit Power:
Beacon Period:
RTS Threshold:
Fragmentation 
Threshold:
DTIM Interval:
802.11d:
WLAN Partition:
WMM Function:
Short GI:
Extra Wireless 
Protection:
Advanced Wireless Settings

46D-Link DIR-635 User Manual
Section 3 - Configuration
WISH Settings
WISH is short for Wireless Intelligent Stream Handling, a technology developed to enhance your experience of using 
a wireless network by prioritizing the trafc of different applications. 
Enable this option if you want to allow WISH 
to prioritize your trafc. 
Enable WISH:
Allows the router to recognize HTTP transfers 
for many common audio and video streams 
and prioritize them above other trafc. Such 
streams are frequently used by digital media 
players. 
HTTP:
Enables  the  router  to  recognize  certain 
audio  and  video  streams  generated  by  a 
Windows Media Center PC and to prioritize 
these above other trafc. Such streams are 
used by systems known as Windows Media 
Extenders, such as the Xbox 360. 
Windows Media 
Center:
When enabled, this option causes the router 
to  automatically  attempt  to  prioritize  trafc 
streams that it doesn’t otherwise recognize, 
based  on  the  behaviour  that  the  streams 
exhibit. This acts to deprioritize streams that 
exhibit bulk transfer characteristics, such as 
le transfers, while leaving interactive trafc, 
such as gaming or VoIP, running at a normal 
priority. 
Automatic:
WISH Rules: A WISH Rule identies a  specic  message  ow  and  assigns  a  priority  to that ow. For most applications, the priority 
classiers ensure the right priorities and specic WISH Rules are not required. 
WISH supports overlaps between rules. If more than one rule matches for a specic message ow, the rule with the highest 
priority will be used. 

47D-Link DIR-635 User Manual
Section 3 - Configuration
Create a name for the rule that is meaningful 
to you.
Name:
The  priority  of  the  message  ow  is  entered 
here. The four priorities are dened as:
BK: Background (least urgent)
BE: Best Effort.
VI: Video
VO: Voice (most urgent)
Priority:
The protocol used by the messages. 
Protocol:
The rule applies to a ow of messages for which one computer’s IP address falls within the range set here.  
Host IP Range:
The rule applies to a ow of messages for which host’s port number is within the range set here. 
Host Port Range:

48D-Link DIR-635 User Manual
Section 3 - Configuration
Enable the Wi-Fi Protected Setup feature. 
Locking the wireless security settings prevents the 
settings from being changed by the Wi-Fi Protected 
Setup  feature  of  the  router.  Devices  can  still  be 
added to the network using Wi-Fi Protected Setup. 
However, the settings of the network will not change 
once this option is checked.
A PIN is a unique number that can be used to add 
the  router  to  an  existing  network  or  to  create  a 
new network. The default PIN may be printed on 
the bottom of the router. For extra security, a new 
PIN can be generated. You can restore the default 
PIN at any time. Only the Administrator (“admin” 
account) can change or reset the PIN. 
Shows the current value of the router’s PIN. 
Restore the default PIN of the router. 
Create a random number that is a valid PIN. This becomes the router’s PIN. You can then copy this PIN to the user interface 
of the registrar.
Enable:
Lock Wireless 
Security Settings:
PIN Settings:
Current PIN:
Reset PIN to 
Default:
Generate New PIN:
Wi-Fi Protected Setup
Wi-Fi Protected Setup (WPS) System is a simplied method for securing your wireless network during the “Initial setup” 
as well as the “Add New Device” processes. The Wi-Fi Alliance (WFA) has certied it across different products as well 
as manufactures. The process is just as easy, as depressing a button for the Push-Button Method or correctly entering 
the 8-digit code for the Pin-Code Method.  The time reduction in setup and ease of use are quite benecial, while the 
highest wireless Security setting of WPA2 is automatically used.

49D-Link DIR-635 User Manual
Section 3 - Configuration
This Wizard helps you add wireless devices to the wireless network.
The wizard will either display the wireless network settings to guide you through manual conguration, prompt you to enter the 
PIN for the device, or ask you to press the conguration button on the device. If the device supports Wi-Fi Protected Setup 
and has a conguration button, you can add it to the network by pressing the conguration button on the device and then 
the on the router within 60 seconds. The status LED on the router will ash three times if the device has been successfully 
added to the network.
There are several ways to add a wireless device to your network. A “registrar” controls access to the wireless network. A 
registrar only allows devices onto the wireless network if you have entered the PIN, or pressed a special Wi-Fi Protected 
Setup button on the device. The router acts as a registrar for the network, although other devices may act as a registrar as 
well.
Start the wizard.
Add Wireless 
Station:
Add Wireless 
Device Wizard:

50D-Link DIR-635 User Manual
Section 3 - Configuration
UPnP
Internet Ping Block
Internet Port Speed
Multicast Streams
To  use  the  Universal  Plug  and  Play  (UPnP™) 
feature  click  on  Enabled.  UPNP  provides 
compatibility with networking equipment, software 
and peripherals.
Unchecking the box will not allow the DIR-635 to 
respond to pings. Blocking the Ping may provide 
some extra security from hackers. Check the box 
to allow the Internet port to be “pinged”.
You may set the port speed of the Internet port 
to 10Mbps, 100Mbps, or auto. Some older cable 
or DSL modems may require you to set the port 
speed to 10Mbps.
Check the box to allow multicast trafc to pass 
through the router from the Internet.
UPnP Settings:
Internet Ping:
Internet Port 
Speed:
Multicast 
streams:
Advanced Network Settings

51D-Link DIR-635 User Manual
Section 3 - Configuration
Change Password
Remote Management
Enter a new password for the Administrator Login Name. 
The administrator can make changes to the settings.
Enter the new password for the User login. If you login as 
the User, you can only see the settings, but cannot change 
them.
Enter a name for the DIR-635 router.
Remote management allows the DIR-635 to be congured 
from  the  Internet  by  a  web  browser.  A  username  and 
password is still required to access the Web-Management 
interface. In general, only a member of your network can 
browse the built-in web pages to perform Administrator tasks. 
This feature enables you to perform Administrator tasks from 
the remote (Internet) host.
The port number used to access the DIR-635.
Example: http://x.x.x.x:8080 whereas x.x.x.x is the Internet  
IP address of the DIR-635 and 8080 is the port used for the 
Web Management interface.
This section will list any rules that are created. You may click 
the Edit icon to change the settings or enable/disable the 
rule, or click the Delete icon to remove the rule.
Admin Password:
User Password:
Gateway Name:
Remote 
Management:
Remote Admin 
Port:
Inbound Filter:
Administrator Settings
This page will allow you to change the Administrator and User passwords. You can also enable Remote Management.  
There are two accounts that can access the management interface through the web browser. The accounts are admin 
and user. Admin has read/write access while user has read-only access. User can only view the settings but cannot 
make any changes. Only the admin account has the ability to change both admin and user account passwords.

52D-Link DIR-635 User Manual
Section 3 - Configuration
Time Settings
Select  the  Time  Zone  from  the  drop-down 
menu.
To select Daylight Saving time manually, select 
enabled or disabled, and enter a start date and 
an end date for daylight saving time.
NTP is short for Network Time Protocol. NTP 
synchronizes computer clock times in a network 
of  computers.  Check  this  box  to  use  a  NTP 
server. This will only connect to a server on the 
Internet, not a local server.
Enter  the  NTP  server  or  select  one  from  the 
drop-down menu.
To  manually  input  the  time,  enter  the  values 
in these elds for the Year, Month, Day, Hour, 
Minute, and Second and then click Set Time. 
You  can  also  click  Copy  Your  Computer’s 
Time Settings.
Time Zone:
Daylight Saving:
Enable NTP 
Server:
NTP Server Used:
Manual:
The Time Conguration option allows you to congure, update, and maintain the correct time on the internal system 
clock. From this section you can set the time zone that you are in and set the Time Server. Daylight Saving can also 
be congured to automatically adjust the time when needed.

53D-Link DIR-635 User Manual
Section 3 - Configuration
SysLog
The Broadband Router keeps a running log of events and activities occurring on the Router. You may send these logs 
to a SysLog server on your network.
Enable Logging to 
SysLog Server:
SysLog Server IP 
Address:
Check  this  box  to  send  the  router  logs  to  a 
SysLog Server.
The address of the SysLog server that will be 
used  to  send  the  logs.  You  may  also  select 
your computer from the drop-down menu (only 
if receiving an IP address from the router via 
DHCP).

54D-Link DIR-635 User Manual
Section 3 - Configuration
Email Settings
The Email feature can be used to send the system log les, router alert messages, and rmware update notication 
to your email address. 
Enable Email 
Notification: 
From Email 
Address:
To Email Address:
SMTP Server 
Address:
Enable 
Authentication:
Account Name:
Password:
On Log Full:
On Schedule:
Schedule:
When this option is enabled, router activity logs 
are e-mailed to a designated email address.
This  email  address  will  appear  as  the  sender 
when you receive a log le or rmware upgrade 
notication via email.
Enter  the  email  address  where  you  want  the 
email sent. 
Enter the SMTP server address for sending email. 
If  your  SMTP  server  requires  authentication, 
select this option.
Check  this  box  if  your  SMTP  server  requires 
authentication. 
Enter your account for sending email.
Enter the password associated with the account. 
Re-type  the  password  associated  with  the 
account.
When this option is selected, logs will be sent 
via email when the log is full.
Selecting this option will send the logs via email 
according to schedule.
This option is enabled when On Schedule is selected. You can select a schedule from the list of dened schedules. To create 
a schedule, go to Tools > Schedules.

55D-Link DIR-635 User Manual
Section 3 - Configuration
Use  this  option  to  save  the  current  router 
conguration settings to a le on the hard disk 
of the computer you are using. First, click the 
Save  button.  You  will  then  see  a  le  dialog, 
where you can select a location and le name 
for the settings. 
Use  this  option  to  load  previously  saved 
router  configuration  settings.  First,  use  the 
Browse  control  to  nd  a  previously  save  le 
of conguration settings. Then, click the Load 
button to transfer those settings to the router. 
This option will restore all conguration settings 
back to the settings that were in effect at the 
time the router was shipped from the factory. 
Any settings that have not been saved will be 
lost, including any rules that you have created. If 
you want to save the current router conguration 
settings, use the Save button above. 
Click to reboot the router.
Save Settings to 
Local Hard Drive:
Load Settings 
from Local Hard 
Drive:
Restore to Factory 
Default Settings:
Reboot Device:
System Settings

56D-Link DIR-635 User Manual
Section 3 - Configuration
Click on Check Online Now for Latest Firmware 
Version to nd out if there is an updated rmware; 
if so, download the new rmware to your hard 
drive.
After you  have downloaded the  new rmware, 
click Browse to locate the rmware update on 
your hard drive.  Click Upload to complete the 
rmware upgrade.
Check Automatically Check Online for Latest 
Firmware  Version  to  have  the  router  check 
automatically to see if there is a new rmware 
upgrade.
Check Email Notication of Newer Firmware 
Version to have the router send an email when 
there is a new rmware available.
Firmware 
Upgrade:
Browse:
Notifications 
Options:
Update Firmware
You can upgrade the rmware of the Router here. Make sure the rmware you want to use is on the local hard drive of 
the computer. Click on Browse to locate the rmware le to be used for the update. Please check the D-Link support 
site for rmware updates at http://support.dlink.com. You can download rmware upgrades to your hard drive from the 
D-Link support site.

57D-Link DIR-635 User Manual
Section 3 - Configuration
Dynamic Domain Name System is a method of 
keeping a domain name linked to a changing IP 
Address. Check the box to enable DDNS.
Choose  your  DDNS  provider  from  the  drop 
down menu.
Enter the Host Name that you registered with 
your DDNS service provider.
Enter the Username for your DDNS account.
Enter the Password for your DDNS account.
Enter a time (in hours).
DDNS:
Server Address:
Host Name:
Username or Key:
Password or Key:
Timeout:
DDNS
The DDNS feature allows you to host a server (Web, FTP, Game Server, etc…) using a domain name that you have 
purchased  (www.whateveryournameis.com)  with  your  dynamically  assigned  IP  address.  Most  broadband  Internet 
Service Providers assign dynamic (changing) IP addresses. Using a DDNS service provider, your friends can enter in 
your domain name to connect to your server no matter what your IP address is.

58D-Link DIR-635 User Manual
Section 3 - Configuration
The  Ping  Test  is  used  to  send  Ping  packets  to  test  if  a 
computer is on the Internet. Enter the IP Address that you 
wish to Ping, and click Ping.
The results of your ping attempts will be displayed here.
System Check
Ping Test:
Ping Results:

59D-Link DIR-635 User Manual
Section 3 - Configuration
Enter a name for your new schedule.
Select  a  day,  a  range  of  days,  or  All  Week  to 
include every day.
Check All Day - 24hrs or enter a start and end 
time for your schedule.
Click Save to save your schedule. You must click 
Save Settings at the top for your schedules to go 
into effect.
The list of schedules will be listed here. Click the 
Edit  icon  to  make  changes  or  click  the  Delete 
icon to remove the schedule.
Name:
Days:
Time:
Save:
Schedule Rules 
List:
Schedules

60D-Link DIR-635 User Manual
Section 3 - Configuration
This  page  displays  the  current  information  for  the  DIR-635.  It  will  display  the  LAN,  WAN  (Internet),  and  Wireless 
information.
If your Internet connection is set up for a Dynamic IP address then a Release button and a Renew button will be 
displayed. Use Release to disconnect from your ISP and use Renew to connect to your ISP. 
If your Internet connection is set up for PPPoE, a Connect button and a Disconnect button will be displayed. Use 
Disconnect to drop the PPPoE connection and use Connect to establish the PPPoE connection.
Displays the router’s time and rmware version.
Displays the MAC address and the public IP settings for the router.
Displays the MAC  address and the private (local)  IP  settings for the 
router.
Displays the wireless MAC address and your wireless settings such as 
SSID and Channel.
Displays computers and devices that are connected to the router via 
Ethernet and that are receiving an IP address assigned by the router 
(DHCP). 
Displays the Multicast Group IP Address.
General:
WAN:
LAN:
Wireless LAN:
LAN Computers:
IGMP Multicast 
Memberships:
Device Information

61D-Link DIR-635 User Manual
Section 3 - Configuration
Logs
What to View:
View Levels:
Apply Log 
Settings:
Refresh:
Clear:
Email Now:
Save Log:
You can select the types of messages that you want 
to display from the log. Firewall & Security, System, 
and Router Status messages can be selected.
There  are  three  levels  of  message  importance: 
Informational, Warning, and Critical. Select the levels 
that you want displayed in the log.
Will  lter  the  log  results  so  that  only  the  selected 
options appear.
Updates the log details on the screen so it displays 
any recent activity.
Clears all of the log contents.
This  option  will  send  a  copy  of  the  router  log  to 
the email address congured  in  the  Tools  >  Email 
screen.
This option will save the router to a log le on your 
computer.
The router automatically logs (records) events of possible interest in it’s internal memory. If there isn’t enough internal 
memory for all events, logs of older events are deleted but logs of the latest events are retained. The Logs option allows 
you to view the router logs. You can dene what types of events you want to view and the level of the events to view. 
This router also has external Syslog Server support so you can send the log les to a computer on your network that 
is running a Syslog utility.

62D-Link DIR-635 User Manual
Section 3 - Configuration
Statistics
The screen below displays the Trafc Statistics. Here you can view the amount of packets that pass through the DIR-635 
on both the Internet and the LAN ports. The trafc counter will reset if the device is rebooted.
Internet Sessions

63D-Link DIR-635 User Manual
Section 3 - Configuration
The wireless client table displays a list of current connected wireless clients. This table also displays the connection 
time and MAC address of the connected wireless clients.
Wireless
The WISH Sessions page displays full details of wireless clients that are connected when WISH is enabled.
WISH Sessions

64D-Link DIR-635 User Manual
Section 3 - Configuration
Support

65D-Link DIR-635 User Manual
Section 4 - Security
Wireless Security
This section will show you the different levels of security you can use to protect your data from intruders. The 
DIR-635 offers the following types of security:
• WPA2 (Wi-Fi Protected Access 2)     • WPA2-PSK (Pre-Shared Key)
• WPA (Wi-Fi Protected Access)      • WPA-PSK (Pre-Shared Key)
• WEP (Wired Equivalent Privacy)
What is WEP?
WEP stands for Wired Equivalent Privacy. It is based on the IEEE 802.11 standard and uses the RC4 encryption 
algorithm. WEP provides security by encrypting data over your wireless network so that it is protected as it is transmitted 
from one wireless device to another.
To gain access to a WEP network, you must know the key. The key is a string of characters that you create. When 
using WEP, you must determine the level of encryption. The type of encryption determines the key length. 128-bit 
encryption requires a longer key than 64-bit encryption. Keys are dened by entering in a string in HEX (hexadecimal 
- using characters 0-9, A-F) or ASCII (American Standard Code for Information Interchange – alphanumeric characters) 
format. ASCII format is provided so you can enter a string that is easier to remember. The ASCII string is converted to 
HEX for use over the network. Four keys can be dened so that you can change keys easily.

66D-Link DIR-635 User Manual
Section 4 - Security
What is WPA?
WPA, or Wi-Fi Protected Access, is a Wi-Fi standard that was designed to improve the security features of WEP (Wired 
Equivalent Privacy).  
The 2 major improvements over WEP: 
• Improved data encryption through the Temporal Key Integrity Protocol (TKIP). TKIP scrambles the keys 
using a hashing algorithm and, by adding an integrity-checking feature, ensures that the keys haven’t 
been tampered with. WPA2 is based on 802.11i and uses Advanced Encryption Standard (AES) instead 
of TKIP.
• User authentication, which is generally missing in WEP, through the extensible authentication protocol 
(EAP). WEP  regulates access to  a wireless network  based on a  computer’s hardware-specic MAC 
address, which is relatively simple to be sniffed out and stolen. EAP is built on a more secure public-key 
encryption system to ensure that only authorized network users can access the network.
WPA-PSK/WPA2-PSK uses a passphrase or key to authenticate your wireless connection. The key is an alpha-numeric 
password between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. This key must 
be the exact same key entered on your wireless router or access point.
WPA/WPA2 incorporates user authentication through the Extensible Authentication Protocol (EAP). EAP is built on a 
more secure public key encryption system to ensure that only authorized network users can access the network.

67D-Link DIR-635 User Manual
Section 4 - Security
Wireless Security Setup Wizard
To run the security wizard, click on Setup at the top and then 
click Launch Wireless Security Setup Wizard.
Select how you would like to congure your wireless security 
settings:
Auto - Allows the router to auto-generate Wireless Network 
Name (SSID) and WPA-Personal Passphrase. Click Save to 
apply the auto-generated settings.
Manual - Allows you to go through the Wireless Security Setup 
Wizard and enter your settings manually.
Click Next to continue.

68D-Link DIR-635 User Manual
Section 4 - Security
Enter  the  SSID  (Service  Set  Identier).  The  SSID  is  the 
name of your wireless network. Create a name using up to 
32 characters. The SSID is case-sensitive.
Select the level of security for your wireless network:
  • Best - WPA2 Authentication 
  • Better - WPA Authentication
  • Good - WEP Encryption
  • None - No security 
Click Next to continue.
If  you  selected  Best  or  Better,  enter  a  password  between  
8-63 characters. 
If you selected Good, enter 13 characters or 26 Hex digits. 
Click Next to continue.

69D-Link DIR-635 User Manual
Section 4 - Security
If you selected Good, the following screen will show you your 
WEP key to enter on your wireless clients. 
Click Save to nish the Security Wizard.
If you selected Better, the following screen will show you your 
Pre-Shared Key to enter on your wireless clients. 
Click Save to nish the Security Wizard.
If you selected Best, the following screen will show you your 
Pre-Shared Key to enter on your wireless clients. 
Click Save to nish the Security Wizard.
If you selected WPA-Enterprise, the RADIUS information will be displayed. Click Save to nish the Security Wizard.

70D-Link DIR-635 User Manual
Section 4 - Security
Configure WEP
It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish 
wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to 
the added overhead.
1. Log  into  the  web-based  configuration  by  opening  a 
web browser and entering the IP address of the router 
(192.168.0.1).  Click on Setup and then click Wireless 
Settings on the left side.
2. Next to Security Mode, select WEP.
3. Next to WEP Key Length, select the level of ecryption (64 
or 128-bit).
    Hex  -  (recommended)  Letters  A-F and  numbers  0-9  
  are valid.
4. Next to WEP Key 1, enter a WEP key that you create. 
Make sure you enter this key exactly on all your wireless 
devices. You may enter up to 4 different keys.
5. Next to Authentication, select Shared Key.
6.  Click  Save  Settings  to  save  your  settings.  If  you  are 
conguring the router with a wireless adapter, you will lose 
connectivity until you enable WEP on your adapter and 
enter the same WEP key as you did on the router.

71D-Link DIR-635 User Manual
Section 4 - Security
Configure WPA-Personal (PSK)
It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish 
wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to 
the added overhead.
1. Log into the web-based conguration by opening a web browser 
and entering the IP address of the router (192.168.0.1).  Click 
on Setup and then click Wireless Settings on the left side.
2. Next to Security Mode, select WPA-Personal.
3. Next to WPA Mode, select Auto, WPA2 Only, or WPA Only. Use 
Auto if you have wireless clients using both WPA and WPA2.
4. Next to Cypher Type, select TKIP and AES, TKIP, or AES.
5. Next to Group Key Update Interval, enter the amount of time 
before the group key used for broadcast and multicast data is 
changed (3600 is default).
6. Next to Pre-Shared Key, enter a key (passphrase). The key is 
entered as a pass-phrase in ASCII format at both ends of the 
wireless connection. The pass-phrase must be between 8-63 
characters. 
7. Click Save Settings to save your settings. If you are conguring 
the router with a wireless adapter, you will lose connectivity until you enable WPA-PSK on your adapter and enter 
the same passphrase as you did on the router.

72D-Link DIR-635 User Manual
Section 4 - Security
It is recommended to enable encryption on your wireless router before your wireless network adapters. Please establish 
wireless connectivity before enabling encryption. Your wireless signal may degrade when enabling encryption due to 
the added overhead.
1. Log into the web-based conguration by opening a web browser 
and entering the IP address of the router (192.168.0.1).  Click 
on Setup and then click Wireless Settings on the left side.
2. Next to Security Mode, select WPA-Enterprise.
3. Next to WPA Mode, select Auto, WPA2 Only, or WPA Only. Use 
Auto if you have wireless clients using both WPA and WPA2.
4. Next to Cypher Type, select TKIP and AES, TKIP, or AES.
5. Next to Group Key Update Interval, enter the amount of time 
before the group key used for broadcast and multicast data is 
changed (3600 is default).
6. Next to Authentication Timeout, enter the amount of time before 
a client is required to re-authenticate (60 minutes is default). 
7. Next to RADIUS Server IP Address enter the IP Address of your 
RADIUS server.
8. Next to RADIUS Server Port, enter the port you are using with 
your RADIUS server. 1812 is the default port.
Configure WPA-Enterprise (RADIUS)

73D-Link DIR-635 User Manual
Section 4 - Security
9. Next  to  RADIUS  Server  Shared  Secret,  enter  the  security 
key.
10. If the MAC Address Authentication box is selected then the 
user will need to connect from the same computer whenever 
logging into the wireless network.
11. Click Advanced to enter settings for a secondary RADIUS 
Server.
12. Click Apply Settings to save your settings.

74D-Link DIR-635 User Manual
Section 5 - Connecting to a Wireless Network
Connect to a Wireless Network
Using Windows® XP
Windows® XP users may use the built-in wireless utility (Zero Conguration Utility). The following instructions are for 
Service Pack 2 users.  If you are using another company’s utility or Windows® 2000, please refer to the user manual 
of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option 
similar to the Windows® XP utility as seen below.
Right-click on the wireless computer icon in your system tray 
(lower-right corner next to the time). Select View Available 
Wireless Networks.
If you receive the Wireless Networks Detected bubble, click 
on the center of the bubble to access the utility.
     or
The utility will display any available wireless networks in your 
area. Click on a network (displayed using the SSID) and click 
the Connect button.
If  you  get  a  good  signal  but  cannot  access  the  Internet, 
check  you  TCP/IP  settings  for  your  wireless  adapter.  Refer 
to  the  Networking  Basics  section  in  this  manual  for  more 
information.

75D-Link DIR-635 User Manual
Section 5 - Connecting to a Wireless Network
Configure WEP
It is recommended to enable WEP on your wireless router or access point before conguring your wireless adapter. If 
you are joining an existing network, you will need to know the WEP key being used.
2. Highlight the wireless network (SSID) you would like to 
connect to and click Connect.
1. Open the Windows® XP Wireless Utility by right-clicking 
on  the  wireless  computer  icon  in  your  system  tray  
(lower-right  corner  of  screen).  Select  View  Available 
Wireless Networks. 

76D-Link DIR-635 User Manual
Section 5 - Connecting to a Wireless Network
3. The  Wireless  Network  Connection  box  will  appear.  Enter  the 
same WEP key that is on your router and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the 
connection fails, please verify that the WEP settings are correct. The 
WEP key must be exactly the same as on the wireless router.

77D-Link DIR-635 User Manual
Section 5 - Connecting to a Wireless Network
Configure WPA-PSK
It is recommended to enable WEP on your wireless router or access point before conguring your wireless adapter. If 
you are joining an existing network, you will need to know the WEP key being used.
2. Highlight the wireless network (SSID) you would like to 
connect to and click Connect.
1. Open the Windows® XP Wireless Utility by right-clicking 
on  the  wireless  computer  icon  in  your  system  tray  
(lower-right  corner  of  screen).  Select  View  Available 
Wireless Networks. 

78D-Link DIR-635 User Manual
Section 5 - Connecting to a Wireless Network
3. The  Wireless  Network  Connection  box  will  appear.  Enter  the 
WPA-PSK passphrase and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the 
connection fails, please verify that the WPA-PSK settings are correct. 
The  WPA-PSK  passphrase  must  be  exactly  the  same  as  on  the 
wireless router.

79D-Link DIR-635 User Manual
Section 6 - Troubleshooting
Troubleshooting
This chapter provides solutions to problems that can occur during the installation and operation of the DIR-635.  Read 
the following descriptions if you are having problems.  (The examples below are illustrated in Windows® XP.  If you 
have a different operating system, the screenshots on your computer will look similar to the following examples.)
1. Why can’t I access the web-based conguration utility?
When entering the IP address of the D-Link router (192.168.0.1 for example), you are not connecting to a website on 
the Internet or have to be connected to the Internet. The device has the utility built-in to a ROM chip in the device itself. 
Your computer must be on the same IP subnet to connect to the web-based utility. 
• Make sure you have an updated Java-enabled web browser. We recommend the following: 
• Internet Explorer 6.0 or higher 
• Netscape 8 or higher 
• Mozilla 1.7.12 (5.0) or higher 
• Opera 8.5 or higher 
• Safari 1.2 or higher (with Java 1.3.1 or higher) 
• Camino 0.8.4 or higher 
• Firefox 1.5 or higher 
• Verify physical connectivity by checking for solid link lights on the device. If you do not get a solid link light, try using 
a different cable or connect to a different port on the device if possible. If the computer is turned off, the link light may 
not be on.
• Disable any internet security software running on the computer. Software rewalls such as Zone Alarm, Black Ice, 
Sygate, Norton Personal Firewall, and Windows® XP rewall may block access to the conguration pages. Check the 
help les included with your rewall software for more information on disabling or conguring it.

80D-Link DIR-635 User Manual
Section 6 - Troubleshooting
• Congure your Internet settings:
• Go to Start > Settings > Control Panel. Double-click the Internet Options Icon. From the Security tab, 
click the button to restore the settings to their defaults.
• Click the Connection tab and set the dial-up option to Never Dial a Connection. Click the LAN Settings 
button. Make sure nothing is checked. Click OK. 
• Go to the Advanced tab and click the button to restore these settings to their defaults. Click OK three 
times.
• Close your web browser (if open) and open it.
• Access the web management. Open your web browser and enter the IP address of your D-Link router in the address 
bar. This should open the login page for your the web management. 
• If you still cannot access the conguration, unplug the power to the router for 10 seconds and plug back in. Wait 
about 30 seconds and try accessing the conguration. If you have multiple computers, try connecting using a different 
computer.
2. What can I do if I forgot my password?
If you forgot your password, you must reset your router. Unfortunately this process will change all your settings back 
to the factory defaults.
To reset the router, locate the reset button (hole) on the rear panel of the unit. With the router powered on, use a 
paperclip to hold the button down for 10 seconds. Release the button and the router will go through its reboot process. 
Wait about 30 seconds to access the router. The default IP address is 192.168.0.1. When logging in, the username is 
admin and leave the password box empty.

81D-Link DIR-635 User Manual
Section 6 - Troubleshooting
3. Why can’t I connect to certain sites or send and receive emails when connecting through my router? 
If you are having a problem sending or receiving email, or connecting to secure sites such as eBay, banking sites, and 
Hotmail, we suggest lowering the MTU in increments of ten (Ex. 1492, 1482, 1472, etc). 
Note: AOL DSL+ users must use MTU of 1400. 
To nd the proper MTU Size, you’ll have to do a special ping of the destination you’re trying to go to. A destination 
could be another computer, or a URL. 
• Click on Start and then click Run. 
• Windows® 95, 98, and Me users type in command (Windows® NT, 2000, and XP users type in cmd) and 
press Enter (or click OK). 
• Once the window opens, you’ll need to do a special ping. Use the following syntax: 
  ping [url] [-f] [-l] [MTU value] 
Example: ping yahoo.com -f -l 1472 

82D-Link DIR-635 User Manual
Section 6 - Troubleshooting
You should start at 1472 and work your way down by 10 each time. Once you get a reply, go up by 2 until you get a 
fragmented packet. Take that value and add 28 to the value to account for the various TCP/IP headers. For example, 
lets say that 1452 was the proper value, the actual MTU size would be 1480, which is the optimum for the network 
we’re working with (1452+28=1480). 
Once you nd your MTU, you can now congure your router with the proper MTU size. 
To change the MTU rate on your router follow the steps below: 
• Open your browser, enter the IP address of your router (192.168.0.1) and click OK. 
• Enter your username (admin) and password (blank by default). Click OK to enter the web conguration 
page for the device. 
• Click on Setup and then click Manual Congure.  
• To change the MTU enter the number in the MTU eld and click Save Settings to save your settings. 
• Test  your  email.  If  changing  the  MTU  does  not  resolve  the  problem,  continue  changing  the  MTU  in 
increments of ten. 

83D-Link DIR-635 User Manual
Appendix A - Wireless Basics
D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless 
connectivity within your home, business or public access wireless networks. Strictly adhering to the IEEE standard, 
the D-Link wireless family of products will allow you to securely access the data you want, when and where you want 
it. You will be able to enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals 
instead of wires. Wireless LANs are used increasingly in both home and ofce environments, and public areas such 
as airports, coffee shops and universities. Innovative ways to utilize WLAN technology are helping people to work and 
communicate more efciently. Increased mobility and the absence of cabling and other xed infrastructure have proven 
to be benecial for many users. 
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 Ethernet adapter cards. 
Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in 
order to use servers, printers or an Internet connection supplied through the wired LAN.  A Wireless Router is a device 
used to provide this link.
Wireless Basics

84D-Link DIR-635 User Manual
Appendix A - Wireless Basics
What is Wireless?
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi 
uses radio frequency to connect wirelessly, so you have the freedom to connect computers anywhere in your home 
or ofce network.
Why D-Link Wireless? 
D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking products. 
D-Link delivers the performance you need at a price you can afford. D-Link has all the products you need to build your 
network.
How does wireless work? 
Wireless works similar to how cordless phone work, through radio signals to transmit data from one point A to point 
B. But wireless technology has restrictions as to how you can access the network. You must be within the wireless 
network range area to be able to connect your computer. There are two different types of wireless networks Wireless 
Local Area Network (WLAN), and Wireless Personal Area Network (WPAN).
Wireless Local Area Network (WLAN)
In a wireless local area network, a device called an Access Point (AP) connects computers to the network. The access 
point has a small antenna attached to it, which allows it to transmit data back and forth over radio signals. With an 
indoor access point as seen in the picture, the signal can travel up to 300 feet. With an outdoor access point the signal 
can reach out up to 30 miles to serve places like manufacturing plants, industrial locations, college and high school 
campuses, airports, golf courses, and many other outdoor venues.

85D-Link DIR-635 User Manual
Appendix A - Wireless Basics
Wireless Personal Area Network (WPAN)
Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN operate in a range 
up to 30 feet away.
Compared to WLAN the speed and wireless operation range are both less than WLAN, but in return it doesn’t use 
nearly as much power which makes it ideal for personal devices, such as mobile phones, PDAs, headphones, laptops, 
speakers, and other devices that operate on batteries.
Who uses wireless? 
Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for home, 
ofce, business, D-Link has a wireless solution for it.
Home
  • Gives everyone at home broadband access
  • Surf the web, check email, instant message, and etc
  • Gets rid of the cables around the house
  • Simple and easy to use
Small Ofce and Home Ofce
  • Stay on top of everything at home as you would at ofce
  • Remotely access your ofce network from home
  • Share Internet connection and printer with multiple computers
  • No need to dedicate ofce space

86D-Link DIR-635 User Manual
Appendix A - Wireless Basics
Where is wireless used? 
Wireless technology is expanding everywhere not just at home or ofce. People like the freedom of mobility and it’s 
becoming so popular that more and more public facilities now provide wireless access to attract people. The wireless 
connection in public places is usually called “hotspots”.
Using a D-Link Cardbus Adapter with your laptop, you can access the hotspot to connect to Internet from remote 
locations like: Airports, Hotels, Coffee Shops, Libraries, Restaurants, and Convention Centers.
Wireless network is easy to setup, but if you’re installing it for the rst time it could be quite a task not knowing where to 
start. That’s why we’ve put together a few setup steps and tips to help you through the process of setting up a wireless 
network.
Tips
Here are a few things to keep in mind, when you install a wireless network.
Centralize your router or Access Point
Make sure you place the router/access point in a centralized location within your network for the best performance. Try 
to place the router/access point as high as possible in the room, so the signal gets dispersed throughout your home. 
If you have a two-story home, you may need a repeater to boost the signal to extend the range.
Eliminate Interference 
Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible from the 
router/access point. This would signicantly reduce any interference that the appliances might cause since they operate 
on same frequency.

87D-Link DIR-635 User Manual
Appendix A - Wireless Basics
Security 
Don’t let you next-door neighbors or intruders connect to your wireless network. Secure your wireless network by turning 
on the WPA or WEP security feature on the router. Refer to product manual for detail information on how to set it up.
There are basically two modes of networking: 
• Infrastructure – All wireless clients will connect to an access point or wireless router.
• Ad-Hoc – Directly connecting to another computer, for peer-to-peer communication, using wireless network 
adapters on each computer, such as two or more DIR-635 wireless network Cardbus adapters.
An Infrastructure network contains an Access Point or wireless router. All the wireless devices, or clients, will connect 
to the wireless router or access point. 
An Ad-Hoc network contains only clients, such as laptops with wireless cardbus adapters. All the adapters must be in 
Ad-Hoc mode to communicate.
Wireless Modes

88D-Link DIR-635 User Manual
Appendix B - Networking Basics
Networking Basics
Check your IP address
After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from 
a DHCP server (i.e. wireless router) automatically. To verify your IP address, please follow the steps below.
Click on Start > Run. In the run box type cmd and click OK. (Windows® Vista users type cmd in the Start Seach 
box.)
At the prompt, type ipconfig and press Enter.
This will display the IP address, subnet mask, and 
the default gateway of your adapter.
If  the  address  is  0.0.0.0,  check  your  adapter 
installation,  security  settings,  and  the  settings 
on your router. Some rewall software programs 
may  block  a  DHCP  request  on  newly  installed 
adapters. 

89D-Link DIR-635 User Manual
Appendix B - Networking Basics
Statically Assign an IP address
If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps 
below:
Step 1
Windows® Vista -  Click on Start > Control Panel > Network and Internet > Network and Sharing Center > Manage 
Network Connections.
Windows® XP -  Click on Start > Control Panel > Network Connections.
Windows® 2000 -  From the desktop, right-click My Network Places > Properties.
Step 2
Right-click on the Local Area Connection which represents your network adapter and select Properties.
Step 3
Highlight Internet Protocol (TCP/IP) and click Properties.
Step 4
Click Use the following IP address and enter an IP address that is on the same 
subnet as your network or the LAN IP address on your router. 
Example: If  the router´s  LAN IP address  is 192.168.0.1,  make your IP address 
192.168.0.X where X is a number between 2 and 99. Make sure that the number 
you choose is not in use on the network. Set Default Gateway the same as the LAN 
IP address of your router (192.168.0.1). 
Set Primary DNS the same as the LAN IP address of your router (192.168.0.1). The 
Secondary DNS is not needed or you may enter a DNS server from your ISP.
Step 5
Click OK twice to save your settings.

90D-Link DIR-635 User Manual
Appendix C - Technical Specifications
Technical Specifications
Standards
  • IEEE 802.11n (draft)
  • IEEE 802.11g
  • IEEE 802.11b
  • IEEE 802.3
  • IEEE 802.3u
Security
  • WPA-Personal
  • WPA2-Personal
  • WPA-Enterprise
  • WPA2-Enterprise
  • 64/128-bit WEP
Wireless Signal Rates*
 • 108Mbps   • 48Mbps
  • 54Mbps   • 24Mbps
  • 36Mbps  • 12Mbps
  • 18Mbps   • 9Mbps
  • 11Mbps   • 5.5Mbps
  • 6Mbps   • 1Mbps
  • 2Mbps      
 MSC (0-15)
  • 130Mbps (270)  • 117Mbps (243)
  • 104Mbps (216)  • 78Mbps (162)
  • 66Mbps (135)  • 58.5Mbps (121.5)
  • 52Mbps (108)  • 39Mbps (81)
  • 26Mbps (54)  • 19.5Mbps (40.5)
  • 12Mbps (27)  • 6.5Mbps (13.5) 
Frequency Range
2.4GHz to 2.483GHz
External Antenna Type
Three (3) detachable reverse SMA Antennas
LEDs
  • Power   • Internet      • Status
  • WLAN   • LAN (10/100)             • USB
Operating Temperature
32°F to 104°F ( 0°C to 40°C)
Humidity
95% maximum (non-condensing)
Safety & Emissions
  • FCC
Dimensions
  • L = 7.6 inches
  • W = 4.6 inches
  • H = 1.2inches
Warranty
1 Year
*  Maximum wireless signal rate derived from IEEE Standard 802.11g and Draft 802.11n specications. Actual data throughput will vary. Network conditions and 
environmental factors, including volume of network trafc, building materials and construction, and network overhead, lower actual data throughput rate. Environmental 
factors will adversely affect wireless signal range.

D-Link DIR-635 User Manual
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant 
to Part 15 of the FCC Rules.  These limits are designed to provide reasonable protection against harmful 
interference in a residential installation. This equipment generates, uses and can radiate radio frequency 
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
 to radio communications.  However, there is no guarantee that interference will not occur in a particular 
installation.  If this equipment does cause harmful interference to radio or television reception, which can 
be determined by turning the equipment off and on, the user is encouraged to try to correct the 
interference by one of the following measures:
  Reorient or relocate the receiving antenna.
  Increase the separation between the equipment and receiver.
  Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference 
received, including interference that may cause undesired operation.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This 
equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
The availability of some specific channels and/or operational frequency bands are country dependent and 
are firmware programmed at the factory to match the intended destination. The firmware setting is not 
accessible by the end user.
•
•
•
•
Federal Communication Commission Interference Statement

D-Link DIR-635 User Manual
This device complies with the essential requirements of the R&TTE Directive 1999/5/EC. The following test 
methods have been applied in order to prove presumption of conformity with the essential requirements of 
the R&TTE Directive 1999/5/EC:
EN 60950-1: 2006
Safety of Information Technology Equipment
EN 50385: 2002
Product standard to demonstrate the compliance of radio base stations and fixed terminal stations for 
wireless telecommunication systems with the basic restrictions or the reference levels related to human 
exposure to radio frequency electromagnetic fields (110MHz - 40 GHz) - General public
EN 300 328 V1.7.1 (2006-10)
Electromagnetic compatibility and Radio spectrum Matters (ERM); Wideband transmission systems; 
Data transmission equipment operating in the 2,4 GHz ISM band and using wide band modulation 
techniques; Harmonized EN covering essential requirements under article 3.2 of the R&TTE Directive
EN 301 489-1 V1.6.1 (2005-09)
Electromagnetic compatibility and Radio Spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) 
standard for radio equipment and services; Part 1: Common technical requirements
EN 301 489-17 V1.2.1 (2002-08) 
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) 
standard for radio equipment and services; Part 17: Specific conditions for 2,4 GHz wideband transmission
systems and 5 GHz high performance RLAN equipment
This device is a 2.4 GHz wideband transmission system (transceiver), intended for use in all EU member 
states and EFTA countries, except in France and Italy where restrictive use applies.
Europe – EU Declaration of Conformity

D-Link DIR-635 User Manual
In Italy the end-user should apply for a license at the national spectrum authorities in order to obtain 
authorization to use the device for setting up outdoor radio links and/or for supplying public access to 
telecommunications and/or network services.
This device may not be used for setting up outdoor radio links in France and in some areas the RF output
power may be limited to 10 mW EIRP in the frequency range of 2454 – 2483.5 MHz. For detailed 
information the end-user should contact the national spectrum authority in France.

D-Link DIR-635 User Manual
Česky [Czech]  [Jméno výrobce] tímto prohlašuje, že tento [typ zařízení] je ve shodě se základními požadavky a dalšími příslušnými ustanoveními 
směrnice 1999/5/ES. 
Dansk [Danish] Undertegnede [fabrikantens navn] erklærer herved, at følgende udstyr [udstyrets typebetegnelse] overholder de væsentlige krav 
og øvrige relevante krav i direktiv 1999/5/EF. 
Deutsch [German]  Hiermit  erklärt  [Name  des  Herstellers],  dass  sich  das  Gerät  [Gerätetyp]  in  Übereinstimmung  mit  den  grundlegenden 
Anforderungen und den übrigen einschlägigen Bestimmungen der Richtlinie 1999/5/EG befindet. 
Eesti [Estonian]  Käesolevaga  kinnitab  [tootja  nimi  =  name  of  manufacturer]  seadme  [seadme  tüüp  =  type  of  equipment]  vastavust  direktiivi 
1999/5/EÜ põhinõuetele ja nimetatud direktiivist tulenevatele teistele asjakohastele sätetele. 
English  Hereby, [name of manufacturer], declares that this [type of equipment] is in compliance with the essential requirements and other 
relevant provisions of Directive 1999/5/EC. 
Español [Spanish]  Por  medio  de  la  presente  [nombre  del  fabricante]  declara  que  el  [clase  de  equipo]  cumple  con  los  requisitos  esenciales  y 
cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE. 
Ελληνική [Greek]  ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ  [name  of  manufacturer]  ΔΗΛΩΝΕΙ ΟΤΙ  [type  of  equipment]  ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ ΤΙΣ ΟΥΣΙΩΔΕΙΣ 
ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ ΔΙΑΤΑΞΕΙΣ ΤΗΣ ΟΔΗΓΙΑΣ 1999/5/ΕΚ. 
Français [French]  Par la présente [nom du fabricant] déclare que l'appareil [type d'appareil] est conforme aux exigences essentielles et aux autres 
dispositions pertinentes de la directive 1999/5/CE. 
Italiano [Italian]  Con la  presente [nome del costruttore] dichiara  che questo [tipo di  apparecchio] è conforme ai requisiti essenziali  ed alle altre 
disposizioni pertinenti stabilite dalla direttiva 1999/5/CE. 
Latviski [Latvian]  Ar šo [name of manufacturer   / izgatavotāja nosaukums] deklarē, ka [type of equipment / iekārtas tips] atbilst Direktīvas 1999/5/EK 
būtiskajām prasībām un citiem ar to saistītajiem noteikumiem. 
Lietuvių [Lithuanian]    Šiuo  [manufacturer  name]  deklaruoja,  kad  šis  [equipment  type]  atitinka  esminius  reikalavimus  ir  kitas  1999/5/EB  Direktyvos 
nuostatas. 
Nederlands [Dutch]  Hierbij verklaart [naam van de fabrikant] dat het toestel [type van toestel] in overeenstemming is met de essentiële eisen en de 
andere relevante bepalingen van richtlijn 1999/5/EG. 
Malti [Maltese]  Hawnhekk, [isem tal-manifattur], jiddikjara li dan [il-mudel tal-prodott] jikkonforma mal-ħtiġijiet essenzjali u ma provvedimenti oħrajn 
relevanti li hemm fid-Dirrettiva 1999/5/EC. 
Magyar [Hungarian]  Alulírott, [gyártó neve] nyilatkozom, hogy a [... típus] megfelel a vonatkozó alapvetõ követelményeknek és az 1999/5/EC irányelv 
egyéb elõírásainak. 
Polski [Polish]  Niniejszym  [nazwa  producenta]  oświadcza,  że  [nazwa  wyrobu]  jest  zgodny  z  zasadniczymi  wymogami  oraz  pozostałymi 
stosownymi postanowieniami Dyrektywy 1999/5/EC. 
Português
  [Portuguese]  [Nome do fabricante] declara que este [tipo de equipamento] está conforme com os requisitos essenciais e outras disposições da 
Directiva 1999/5/CE. 
Slovensko [Slovenian]  [Ime proizvajalca] izjavlja, da je ta [tip opreme] v skladu z bistvenimi zahtevami in ostalimi relevantnimi določili direktive 1999/5/ES. 
Slovensky [Slovak]  [Meno  výrobcu]  týmto  vyhlasuje,  že  [typ  zariadenia]  spĺňa  základné  požiadavky  a  všetky  príslušné  ustanovenia  Smernice 
1999/5/ES.   
Suomi [Finnish]  [Valmistaja = manufacturer]  vakuuttaa  täten  että  [type  of  equipment  =  laitteen  tyyppimerkintä]  tyyppinen  laite  on  direktiivin 
1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen. 
Svenska [Swedish]  Härmed  intygar  [företag]  att  denna  [utrustningstyp]  står  I  överensstämmelse  med  de  väsentliga  egenskapskrav  och  övriga 
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