LINKSYS NWR11B Wireless-B Broadband Router User Manual NWR11B user guide

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COPYRIGHT & TRADEMARKS
Copyright © 2003 Network Everywhere, All Rights Reserved. Network Everywhere and
Linksys are registered trademarks of Linksys. Microsoft, Windows, and the Windows
logo are registered trademarks of Microsoft Corporation. All other trademarks and brand
names are the property of their respective proprietors.
LIMITED WARRANTY
Network Everywhere guarantees that every Wireless-B Broadband Router will be free
from physical defects in material and workmanship for one year from the date of purchase, when used within the limits set forth in the Specifications section of this User
Guide. If the product proves defective during this warranty period, call Network
Everywhere Technical Support in order to obtain a Return Authorization number. BE
SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING. When
returning a product, mark the Return Authorization number clearly on the outside of the
package and include a copy of your original proof of purchase. RETURN REQUESTS
CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. All customers located
outside of the United States of America and Canada shall be held responsible for shipping and handling charges.
IN NO EVENT SHALL NETWORK EVERYWHERE’S LIABILITY EXCEED THE PRICE PAID
FOR THE PRODUCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING SOFTWARE, OR ITS DOCUMENTATION. NETWORK EVERYWHERE OFFERS
NO REFUNDS FOR ITS PRODUCTS. Network Everywhere makes no warranty or representation, expressed, implied, or statutory, with respect to its products or the contents or
use of this documentation and all accompanying software, and specifically disclaims its
quality, performance, merchantability, or fitness for any particular purpose. Network
Everywhere reserves the right to revise or update its products, software, or documentation without obligation to notify any individual or entity. Please direct all inquiries to:
Network Everywhere P.O. Box 18558, Irvine, CA 92623.
FCC STATEMENT
The Wireless-B Broadband Router has been tested and complies with the specifications
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 according to 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 is found by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
•
•
•
•
Reorient or relocate the receiving antenna
Increase the separation between the equipment or devices
Connect the equipment to an outlet other than the receiver’s
Consult a dealer or an experienced radio/TV technician for assistance
NWR11B-UG-31030NC BW
Table of Contents
Chapter 1: Introduction
The Wireless Broadband Router
Features
An Introduction to LANs and WANs
IP Addresses
The Router’s Ports
The Router’s LEDs
Chapter 2: Planning Your Wireless Network
Network Topology
Roaming
Chapter 3: Connecting the Router
Before You Start
Connecting Your Hardware Together and Booting Up
Chapter 4: Configuring the PCs
Overview
Configuring Windows 98 SE and Millennium PCs
Configuring Windows 2000 PCs
Configuring Windows XP PCs
10
10
10
12
14
Chapter 5: The Router’s Web-based Utility
Overview
Logging In
Setup
Password
Status
DHCP
Log
Help
Advanced
IP Filtering
Forwarding
Dynamic Routing
Static Routing
DMZ Host
MAC Address Clone
Wireless
16
16
16
17
22
23
24
25
26
27
28
31
37
38
40
41
42
Network Everywhere® Series
Appendix A: Troubleshooting
Common Problems and Solutions
Frequently Asked Questions
45
45
57
Appendix B: How to Ping Your ISP’s E-mail and Web Addresses 63
Appendix C: Configuring Wireless Security
Configuring Wireless Security in Windows XP
66
69
Appendix D: Finding the MAC Address
and IP Address for Your Ethernet Adapter
74
Appendix E: Glossary
78
Appendix F: Specifications
Environmental
87
87
Appendix G: Warranty Information
88
Appendix H: Contact Information
89
Wireless-B Broadband Router
Chapter 1: Introduction
The Wireless Broadband Router
The Wireless Router lets you securely share your DSL or Cable Modem
Internet connection with all the computers in the house, both wireless and
wired. You can connect four computers directly to the Router by Ethernet
cables, and daisy-chain out to more hubs and switches to create as big a network as you need.
Or, use the Router's built-in Wireless Access Point to connect your PC to the
network without stringing any wires. Just plug a wireless network adapter into
your notebook through a PC Card slot, and you're ready to go. Wireless networking doesn't get any easier.
Of course, you can connect more computers to the Router and your high-speed
Internet link -- just provide a wired or wireless network adapter for each one.
And once your computers are connected to the Router, they can communicate
with each other too, sharing resources like printers and all kinds of files -music, digital pictures, and documents.
To protect your data and privacy, all wireless communications can be protected by 128-bit encryption, while the Router helps keep Internet intruders out of
your computers. It's all easier than you think -- the included Setup Wizards
walk you through configuring the Router, step by step.
With the Wireless-B Broadband Router, you're ready to start sharing printers,
files, and your Internet connection, the easy way.
Features
•
•
•
•
•
•
•
•
•
•
•
•
11 Mbps High-Speed Data Transfer Rate with Automatic Fallback
Plug-and-Play Operation Provides Easy Setup
802.11b, DSSS, 2.4GHz-Compliant
Supports up to 128-bit WEP Encryption Security
Compatible with Virtually All Major Network Operating Systems
Free Driver Upgrades via Web
Remote administration and upgrade feature
Integrated Equalizer Recovers Weak Signals and Enhances Sensitivity
Sturdy Metal Design with Integrated Antenna
Works with All Standard Internet Applications
Clear Channel Assessment Increases Network Throughput
Hardware Buffer Chaining Provides High Performance While Reading and
Writing Buffers
Network Everywhere® Series
An Introduction to LANs and WANs
Simply put, a router is a network device that connects two networks together.
In this instance, the Router connects your Local Area Network (LAN), or the
group of PCs in your home or office, to the Wide Area Network (WAN) that is
the Internet. The Router processes and regulates the data that travels between
these two networks.
Think of the Router as a network device with two sides. The first side is made
up of your private Local Area Network (LAN) of PCs. The other, public side
is the Internet, or the Wide Area Network (WAN), outside of your home or
office.
The Router’s firewall (NAT) protects your network of PCs so users on the public, Internet side cannot “see” your PCs. This is how your LAN, or network,
remains private. The Router protects your network by inspecting the first packet coming in from the Internet port before delivery to the final destination on
the LAN port. The Router inspects Internet port services like the web server,
ftp server, or other Internet applications, and, if allowed, it will forward the
packet to the appropriate PC on the LAN side.
IP Addresses
What’s an IP Address?
IP stands for Internet Protocol. Every device on an IP-based network, including PCs, print servers, and routers, requires an IP address to identify its “location,” or address, on the network. This applies to both the Internet and LAN
connections.
There are two ways of assigning an IP address to your network devices.
Static IP Addresses
A static IP address is a fixed IP address that you assign manually to a PC or
other device on the network. Since a static IP address remains valid until you
disable it, static IP addressing insures that the device assigned it will have that
same IP address until you change it. Static IP addresses are commonly used
with network devices such as server PCs or print servers.
If you use the Router to share your cable or DSL Internet connection, contact
your ISP to find out if they have assigned a static IP address to your account.
If so, you will need that static IP address when configuring the Router. You can
get the information from your ISP.
Wireless-B Broadband Router
Note: Since the Router is a device that connects two networks, it needs two
IP addresses—one for the LAN side, and one for the Internet side. In this
User Guide, you’ll see references to the “Internet IP address” and the “LAN
IP address.”
Since the Router has firewall security (NAT), only the Router’s Internet IP
address can be seen from the Internet.
However, even the Internet IP address can be blocked, so that the Router and
network seem invisible to the Internet—This is shown in the Filters section in
“Chapter 5: The Routers Web-Based Utility”.
Dynamic IP Addresses
A dynamic IP address is automatically assigned to a device on the network,
such as PCs and print servers. These IP addresses are called “dynamic”
because they are only temporarily assigned to the PC or device. After a certain
time period, they expire and may change. If a PC logs on to the network (or the
Internet) and its dynamic IP address has expired, the DHCP server will assign
it a new dynamic IP address.
For DSL users, many ISPs may require you to log on with a user name and
password to gain access to the Internet. This is called “Point to Point Protocol
over Ethernet” or PPPoE. PPPoE is similar to a dial-up connection but does not
have a phone number to dial into, and PPPoE is a dedicated high-speed connection. PPPoE also will provide the Router with a dynamic IP address to
establish a connection to the Internet.
DHCP (Dynamic Host Configuration Protocol) Servers
DHCP frees you from having to assign IP addresses manually every time a new
user is added to your network. PCs and other network devices using dynamic
IP addressing are assigned a new IP address by a DHCP server. The PC or network device obtaining an IP address is called the DHCP client. The Router’s
Internet port is, by default, set as a DHCP client.
DHCP servers can either be a designated PC on the network or another network
device, such as the Router. By default, a DHCP server is enabled on your
Router’s LAN ports. If you already have a DHCP server running on your network, you must disable one of the two DHCP servers. If you run more than one
DHCP server on your network, you will experience network errors, such as
conflicting IP addresses. To disable the Router’s DHCP function, see the
DHCP section in Chapter 5: The Router’s Web-Based Utility.
Note: Even if you assign a static IP address to a PC, other PCs can still use
DHCP’s dynamic IP addressing, as long as the static IP is not within the
DHCP range of the LAN IP Address.
If the Router’s DHCP function fails to provide a dynamic IP address for any
reason, please refer to Appendix A: Troubleshooting.
Network Everywhere® Series
Wireless-B Broadband Router
The Reset Button
The Router’s Ports
Pressing the Reset Button and holding it in for a few seconds will clear all
of the Router’s data and restore the factory defaults. This should be done
only if you are experiencing heavy routing problems, and only after you
have exhausted all of the other troubleshooting options. By resetting the
Router, you run the risk of creating conflicts between your PCs’ actual IP
Addresses and what the Router thinks their IP Addresses should be. You
may be forced to reboot each network PC.
If the Router locks up, simply press the reset button or power it down for
three to five seconds by removing the power cable from the Router’s
Power Port. Leaving the power off for too long could result in the loss of
network connections.
Figure 1-1
The Router’s LEDs
The Router’s rear panel (as shown in Figure 1-1) is where all of its connections
are made.
Internet
The Internet Port is where you will connect your cable or
DSL modem with an Ethernet cable. Your modem connection will not work from any other port.
Ports 1, 2, 3, 4
These four LAN (Local Area Network) ports are where
you will connect networked devices, such as PCs, print
servers, and any other Ethernet devices you want to put
on your network.
The LAN Indicators, shown in Figure 1-2, show the status of information being
transmitted within your local network
The Power Port is where you will connect the included
AC Power adapter.
Wireless-B
Green. This LED indicates that the Router’s wireless functions have been enabled through the Web-based utility and
there is wireless activity.
Power
Green. This LED indicates that the Router’s power is on.
When blinking, this LED indicates that the Router is in selfdiagnosis mode during boot-up and restart. It will stop blinking after completing the diagnosis. If this LED blinks for
more than five seconds, refer to the Troubleshooting
Appendix.
Ethernet
Green. This LED serves two purposes. When this LED is lit
continuously, this indicates that the Router is connected to a
device through the corresponding port (1, 2, 3, or 4). A blinking LED indicates that the Router is actively sending or
receiving data over that port.
Power
Figure 1-2
Network Everywhere® Series
The Internet indicators, shown in Figure 1-2, show the status of information
being transmitted to and from the Internet.
Internet
Green. This LED indicates a connection between the Router
and your broadband device or network.
Wireless-B Broadband Router
Chapter 2: Planning Your Wireless
Network
Network Topology
A wireless LAN is exactly like a regular LAN, except that each computer in the
LAN uses a wireless adapter to connect to the network through a wireless connection. Computers in a wireless LAN must be configured to share the same
radio channel.
The wireless adapter provides LAN access for wireless workstations. An integrated wireless and wired LAN is called an Infrastructure configuration. A
group of wireless adapter users and this Router compose a Basic Service Set
(BSS). Each PC equipped with a wireless adapter in a BSS can talk to any
computer in a wired LAN infrastructure via this Router.
An infrastructure configuration extends the accessibility of a PC with a wireless adapter to a wired LAN, and doubles the effective wireless transmission
range for two PCs equipped with a wireless adapter
Roaming
Infrastructure mode also supports roaming capabilities for mobile users. More
than one BSS can be configured as an Extended Service Set (ESS). This continuous network allows users to roam freely within an ESS. All PCs that are
equipped with a wireless adapter, and are within one ESS, must be configured
with the same ESS ID.
Before enabling an ESS with roaming capability, it is recommended to select a
feasible radio channel and optimum Router position. Proper positioning combined with a clear radio signal will greatly enhance performance.
Network Everywhere® Series
Chapter 3: Connecting the Router
Before You Start
Before plugging everything together, it’s always a good idea to have everything
you’ll need to get the Router up and running. Depending upon how you configure the Router in Chapter 5: The Router’s Web-based Utility, you may need
some of the following values from your ISP:
When connecting through a Static IP connection, be sure to have 1) Your
broadband-configured PC’s fixed Internet IP Address, 2) Your broadbandconfigured PC’s Computer Name and Workgroup Name, 3) Your Subnet
Mask, 4) Your Default Gateway, and 5) Your Primary DNS IP address.
When connecting through a PPPoE connection, be sure to have 1) Your
PPPoE User Name and 2) Your PPPoE Password.
The installation technician from your ISP should have left this information with
you after installing your broadband connection. If not, you can call your ISP to
request the data.
Wireless-B Broadband Router
4. Connect the Power Adapter (included) to the Router’s Power port and plug
the other end into a power outlet.
• The Power LED will blink green as soon as the power adapter is connected.
5. Power on the cable or DSL modem. Verify that the power is on by checking
the Internet LED in the Internet column on the front of the Router. The
Link LED will be illuminated if the power is on and the modem is ready.
6. Press the Reset button on the back of the Router. Hold the button in for three
seconds. This restores the Router’s default settings.
7. Power on your PC.
The Router is now connected.
Continue to the next chapter to configure your PCs.
For Wireless Connections: In addition to accessing the Router through an
Ethernet connection, a wireless connection can be used to access the Router.
After powering on the Router and connecting it to your modem, enter the
Router’s IP Address in the Address field of your wireless PC’s web-browser as
follows: http://192.168.1.1 and press Enter.
Once you have the above values, you can begin the Router’s installation and
setup.
Connecting Your Hardware Together and Booting Up
Once you are sure that you have the above values on hand, you can begin the
Installation and Setup of the Router.
1. Power everything down, including your PCs, your cable or DSL modem and
the Router.
2. Connect an Ethernet cable from one of your PC’s Ethernet ports to one of the
Router’s Ethernet ports. Do the same with all the PCs you wish to connect to
the Router.
In addition to accessing the Router through an Ethernet connection, a wireless connection can be used to access the Router. See the “For Wireless
Connections” note that follows these connection instructions.
3. Connect another Ethernet cable from your cable or DSL modem to the
Router’s Internet port.
Important: The Router is configured by default to work out of the box with
all Network Everywhere Wireless Adapters. If you have changed the
defaults on your Network Everywhere Wireless Adapters, or are using
other wireless adapters, you must temporarily change your wireless
adapter settings to: (SSID = wireless) in order to initially access the Router
wirelessly. After you have accessed the Router with the default settings,
you can change the Router’s settings to coincide with your Network settings and reset your adapters.
Important: Some ISPs—most notably some cable providers—configure
their networks so that you do not have to enter a full Internet address into
your web browser or e-mail application to reach your home page or
receive your e-mail. If your Internet home page address is something very
simple, such as “www”, rather than “www.networkeverywhere.com”, or
your e-mail server’s address is something similar to “e-mail” or “pop3”,
rather than “pop.mail.networkeverywhere.com”, you won’t be able to
properly configure the Router until you determine the actual Internet
addresses of your Web and e-mail connections.
You must obtain this information prior to connecting the Router to your network. You can obtain this information by contacting your ISP.
Network Everywhere® Series
Chapter 4: Configuring the PCs
Overview
These instructions will help you configure each of your computers to communicate with the Router.
To do this, you will need to configure your PC’s network settings to obtain an
IP (or TCP/IP) address automatically. Computers use IP addresses to communicate with each other across a network or the Internet.
You will need to know which operating system your computer is running, such
as Windows 98 SE, Millennium, 2000, or XP. You can find out by clicking the
Start button and then selecting the Settings option. (If your Start menu doesn’t have a Settings option, you’re running Windows XP. You can select the
Control Panel directly from the Start Menu.) Then, click Control Panel and
double-click the System icon. Click the Cancel button when done.
Once you know which Windows operating system you are running, follow the
directions in this step for your computer’s operating system. If you PC is not
configured with the TCP/IP protocol, you will need to do this for each computer you are connecting to the Router.
The next few pages tell you, step by step, how to configure your TCP/IP settings based on the type of Windows operating system you are using. Once
you've configured your computers, continue to Chapter 5: The Router’s Webbased Utility.
Wireless-B Broadband Router
2. Select the Configuration tab
and highlight the TCP/IP
line for the applicable
Ethernet adapter (as shown
in Figure 4-1). If the word
TCP/IP appears by itself,
select that line. (Note: If
there is no TCP/IP line listed,
refer to your Ethernet
adapter’s documentation to
install TCP/IP now.) Then,
click the Properties button.
Figure 4-1
3. Click the IP Address tab and
select Obtain an IP address
automatically (as shown in
figure 4-2).
Configuring Windows 98 SE and Millennium PCs
1. Click the Start button, click Settings and open the Control Panel. From
there, double-click the Network icon to open the Network screen.
Figure 4-2
4. Click the Gateway tab and verify that the Installed Gateway field is blank.
Click the OK button.
10
11
Network Everywhere® Series
5. Click the OK button again. Windows may ask you for the original
Windows installation disk or additional files. Supply them by pointing to
the
correct
file
location,
e.g.,
D:\win98,
D:\win9x,
c:\windows\options\cabs, etc. (This assumes that “D” is the letter of your
CD-ROM drive).
Wireless-B Broadband Router
4. Select Internet Protocol
(TCP/IP) (as shown in
Figure 4-4) and click the
Properties button.
6. If Windows asks you to restart your PC, click the Yes button. If Windows
does not ask you to restart, restart your computer anyway.
Repeat steps 1-6 for each PC on your network. When all of your PCs are
configured, proceed to Chapter 5: The Router’s Web-based Utility.
Configuring Windows 2000 PCs
1. Click the Start button, click Settings and open the Control Panel. From
there, double-click the Network and Dial-up Connections icon. This will
display the Network screen.
2. Select the Local Area
Connection icon for the
applicable
Ethernet
adapter (usually it is the
first
Local
Area
Connection listed).
Figure 4-4
5. Select Obtain an IP
address automatically
and verify that Obtain
DNS server address
automatically is selected
(as shown in Figure 4-5).
Then, click the OK button and click the OK button on the subsequent
screens to complete the
PC’s configuration.
Figure 4-3
3. When the Local Area Connection Status screen appears, click the
Properties button. (See Figure 4-3.)
Figure 4-5
Repeat steps 1-5 for each PC on your network. When all of your PCs are
configured, proceed to Chapter 5: The Router’s Web-based Utility.
12
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Network Everywhere® Series
Configuring Windows XP PCs
The following instructions assume you are running Windows XP’s default
interface. If you are using the Classic interface (where the icons and menus
look like previous Windows versions), please follow the instructions for
Windows 2000.
Wireless-B Broadband Router
4. Select Internet Protocol
(TCP/IP) (as shown in
Figure 4-7) and click the
Properties button.
1. Click the Start button, open the Control Panel. and click the Network and
Internet Connections icon. Then, click the Network Connections icon to
display the Network screen.
2. Select the Local Area
Connection icon for the
applicable
Ethernet
adapter (usually it is the
first
Local
Area
Connection listed).
Figure 4-7
Figure 4-6
3. When the Local Area Connection Status screen appears, click the
Properties button. (See Figure 4-6.)
5. Select Obtain an IP
address automatically and
verify that Obtain DNS
server address automatically is selected (as shown
in Figure 4-8). Then, click
the OK button and click the
OK button on the subsequent screens to complete
the PC’s configuration.
Figure 4-8
Repeat steps 1-5 for each PC on your network. When all of your PCs are
configured, proceed to Chapter 5: The Router’s Web-based Utility.
14
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Network Everywhere® Series
Chapter 5: The Router’s
Web-based Utility
Wireless-B Broadband Router
Upon entering the address into the web browser, a password request page will
pop up, as shown in Figure 5-2a. (Windows XP users will see a “Connect to
192.168.1.1” window, shown in Figure 5-2b.)
Overview
Use the Router’s web-based utility to administer it. This chapter will describe
each web page in the Utility and each page’s key functions. The utility can be
accessed via your web browser through use of a computer connected to the
Router.
Figure 5-2a
For a basic network setup, most users only have to use the following screens of
the utility:
• Setup Enter the settings provided by your ISP.
Figure 5-2b
• Password The Router’s default password is admin. To secure the Router,
change the Password from its default.
Leave the User Name field empty, and enter admin (the default password) in
lowercase letters in the Password field. Then, click the OK button.
The WEP, Status, DHCP, Log, and Help tabs are also available for basic setup.
For advanced setup, click the Advanced Setup tab to access these screens:
Filters, Forwarding, Dynamic Routing, Static Routing, DMZ Host, MAC Addr
Clone, and Wireless.
To apply any of the settings you change on a page of the Utility, click the Apply
button. To cancel any values you’ve entered on any page of the Utility, click
the Cancel button.
Logging In
To access the web-based utility of the Router, launch Internet Explorer or
Netscape Navigator, and enter the Router’s default IP address, 192.168.1.1, in
the Address field, as shown in Figure 5-1. Then, press Enter.
Setup
The Setup screen, shown in Figure 5-3, is the first screen you see when you
access the web-based utility. If you have already installed and set up the Router,
you have already seen this screen and properly configured all of the screen’s
values. Some options on this screen remain the same while the Internet
Connection option will change depending on how you connect to the Internet.
The main options are described first, with all of the Internet Connection types
following.
Figure 5-1
Note: If your PC’s Windows operating system supports Universal
Plug and Play (UPnP), Windows will offer to create a desktop shortcut to the Router. Click the OK button to create the desktop icon, and
then double-click the icon to connect to the Router. Otherwise, connect to the Router manually, as directed in steps 1 and 2.
16
Host Name/Domain Name These fields allow you to supply a host and
domain name for the Router. Some ISPs require these names as identification.
You may have to check with your ISP to see if your broadband Internet service
has been configured with a host and domain name. In most cases, leaving these
fields blank will work.
17
Network Everywhere® Series
Wireless-B Broadband Router
Wireless (Enable/Disable). In order to utilize the Router’s wireless functions,
select Enable. If you do not wish to utilize any wireless functions, make sure
Disable is selected. (Note: No other wireless functions will be available unless
you enable this setting.)
SSID: The SSID is a unique name for your wireless network. It is case sensitive and must not exceed 32 characters. The default SSID is "wireless "
but you should change this to a personal wireless network name. All wireless points in your network must use the same SSID. Verify that you are
using the correct SSID and click the Apply button to set it.
SSID Broadcast - Allows the SSID to be broadcast on your network. You
may want to enable this function while configuring the Router, but make
sure that you disable it when you are finished. With this enabled, someone
could easily obtain the SSID information with site survey software and gain
unauthorized access to your network. Click Enable to broadcast. Click
Disable to increase network security and prevent the SSID from being seen
on networked PCs.
Channel Select the appropriate channel from the list provided to correspond with your network settings, between 1 and 11. All points in your
wireless network must use the same channel in order to function correctly.
Verify that the correct channel is selected and click the Apply button to set
it.
Figure 5-3
Firmware Version This entry shows the version and date of the firmware the
Router is using. Future versions of the Router’s firmware will be posted and
available for download on the Network Everywhere website at
www.NetworkEverywhere.com.
LAN IP Address The values for the Router’s IP Address and Subnet Mask are
shown here. The default values are 192.168.1.1 for the Device IP Address and
255.255.255.0 for the Subnet Mask.
WEP (Mandatory/Disable). In order to utilize WEP encryption, select
Enable. If you do not wish to utilize WEP encryption, make sure Disable
is selected.
Note: To configure WEP encryption, see
Appendix C: Configuring Wireless Security.
Internet Connection Type The Router supports three connection types:
DHCP, PPPoE, and Static IP. Each Setup screen and available features will differ depending on what kind of connection type you select.
Obtain an IP Address Automatically
By default, the Router’s Internet Connection is set to Obtain an IP automatically, as shown in Figure 5-3, and it should be used only if your ISP
supports DHCP.
To apply any of the settings you’ve changed on this page, click the Apply
button. To cancel any values you’ve entered on this page, click the Cancel
button. If you should need any further information about anything on this
screen, click the Help button.
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Network Everywhere® Series
Static IP
Wireless-B Broadband Router
PPPoE
Some DSL-based ISPs
use PPPoE (Point-toPoint Protocol over
Ethernet) to establish
Internet connections. If
you are connected to
the Internet through a
DSL line, check with
your ISP to see if they
use PPPoE. If they do,
you will have to enable
PPPoE, shown in
Figure 5-5.
If you are required
to use a permanent
IP address, then
select
Static
(Fixed)
IP
address, shown in
Figure 5-4.
User
Name
and
Password Enter the
User
Name
and
Password provided by
your ISP.
Figure 5-5
Figure 5-4
IP Address This is the Router’s IP address, when seen from the Internet, or
the Internet. Your ISP will provide you with the IP Address you need to specify here.
Subnet Mask This is the Router’s Subnet Mask, as seen by external users on
the Internet (including your ISP). Your ISP will provide you with the Subnet
Mask.
Default Gateway Address Your ISP will provide you with the Default
Gateway Address, which is the ISP’s IP address.
DNS (Required) 1-3 Your ISP will provide you with at least one DNS
(Domain Name System)
Note: Successfully connection to the
Server IP Address.
Internet means these settings are correct.
To apply any of the settings you’ve changed on this page, click the Apply button.. To cancel any values you’ve entered on this page, click the Cancel button. If you should need any further information about anything on this screen,
click the Help button.
20
Important: If you enable PPPoE, remember to remove any
PPPoE applications that are already installed on any of your PCs.
Connect on Demand: Max Idle Time You can configure the Router to cut
the connection with your ISP after a specified period of time (Max Idle
Time). If you have been disconnected due to inactivity, Connect on Demand
enables the Router to automatically re-establish your connection as soon as
you attempt to access the Internet again. If you wish to activate Connect on
Demand, click the radio button. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet access disconnects.
Keep Alive Option: Redial Period If you select this option, the Router will
periodically check your Internet connection. If you are disconnected, then
the Router will automatically re-establish your connection. To use this
option, click the radio button next to Keep Alive. In the Redial Period field,
enter the number of seconds you want the Redial Period to last. The default
Redial Period is 30 seconds.
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button. If you should need any further information about anything on this screen,
click the Help button.
Note: Successfully connection to the
Internet means these settings are correct.
21
Network Everywhere® Series
Wireless-B Broadband Router
Password
Status
The Password screen, shown in Figure 5-6, allows you to set up a password and
UPnP Services. You can also restore default settings on the Router.
The Status screen,
shown in Figure 5-7
displays the Router’s
current status; it
reflects the data and
selections
you’ve
entered using the
Setup screen.
All of the information provided on this
screen is read-only.
To make changes,
select the Setup tab.
Figure 5-6
Router Password Set a password for the Router. You can use up to 64 alphanumeric characters. The default password is admin. If you don’t change the password, all users on your network will be able to access the Router using the
default password. For greater security, you should change the password from its
default setting.
Figure 5-7
Note: The information provided and buttons available will vary depending on
the Router’s settings.
Host Name This field shows the Router’s name.
UPnP Services Universal Plug and Play (UPnP) allows Windows XP to automatically configure the Router for various Internet applications, such as gaming and videoconferencing. Click the radio button next to Enable to enable
UPnP Services, or Disable to disable UPnP Services.
Restore Factory Defaults If you select the Restore Factory Defaults option
and click the Apply button, you will clear all of the Router’s settings. Do not
restore the factory defaults unless you are having difficulties with the Router
and have exhausted all other troubleshooting measures. Once the Router is
reset, you will have to re-enter all of your configuration data.
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button.
If you should need any further information about anything on this screen, click
the Help button.
22
Firmware Version This field shows the installed version and date of the
firmware.
Login This indicates if you are using a dial-up style connection, e.g., PPPoE.
For PPPoE only, there is a Connect button to click if you are disconnected and
want to re-establish a connection.
LAN These fields display the Router’s current MAC Address, IP Address, and
Subnet Mask, as seen by users on your local area network. The DHCP Server
field shows the status of the Router’s DHCP server function, which is either
enabled or disabled.
Internet These fields display the Router’s current MAC Address, IP Address,
Subnet Mask, and Default Gateway IP Address, as seen by external users on the
Internet. The DNS (Domain Name System) fields show the IP address(es) of
23
Network Everywhere® Series
the DNS server(s) currently used by the Router. Multiple DNS IP settings are
common. In most cases, the first available DNS entry is used. The DHCP
Server, DHCP leased Time, and DHCP Time Remaining are also shown.
DHCP Release Available for a DHCP connection, click the DHCP Release
button to release the current IP address of the device connected to the Router’s
Internet port.
DHCP Renew Available for a DHCP connection, click the DHCP Renew button to replace the current IP address of the device that is connected to the
Router’s Internet port with a new IP address.
DHCP Clients Table Click the DHCP Clients Table button to view the list of
PCs that were given IP addresses by the Router.
DHCP
DHCP
Wireless-B Broadband Router
DHCP Server DHCP is already enabled by factory default. If you already
have a DHCP server on your network, set the Router’s DHCP option to
Disable. Click the Apply button. If you disable DHCP, remember to assign a
static IP address to the Router.
Starting IP Address Enter a value for the DHCP server to start with when
issuing IP addresses. This value must be 192.168.1.2 or greater, because the
Router’s default IP address is 192.168.1.1.
Number of DHCP Users (Optional) Enter the maximum number of PCs for
the DHCP server to assign IP addresses. This number cannot be greater than
253.
DNS 1-3 The Domain Name System (DNS) is how the Internet translates
domain or website names into Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. If you wish to use another,
type that IP Address in one of these fields. You can type up to three DNS Server
IP Addresses here. The Router will use these for quicker access to functioning
DNS servers.
DHCP Clients Table Click the DHCP Clients Table button to show the current DHCP Client data. (This data is stored in temporary memory and changes
periodically.)
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button.
If you should need any further information about anything on this screen, click
the Help button.
Log
The Log tab, shown in Figure 5-9, provides you with a log of all incoming and
outgoing URLs or IP addresses for your Internet connection.
Figure 5-8
From the DHCP screen, shown in Figure 5-8, you can configure the settings to
your DHCP server. A Dynamic Host Configuration Protocol (DHCP) server
automatically assigns an IP address to each PC on your network for you. Unless
you already have one, it is highly recommended that you leave the Router
enabled as a DHCP server.
24
Access Log To access activity logs, select the Enable option next to Access
Log. This function can be disabled by clicking the Disable radio button.
Temporary logs can be accessed from the Log screen by clicking either the
Incoming Access Log or Outgoing Access Log button. The Incoming Access
Log gives you a log of all the incoming Internet traffic while the Outgoing
Access Log lists all the URLs and IP addresses of Internet sites that users on
your network have accessed.
25
Network Everywhere® Series
Wireless-B Broadband Router
Online manual in PDF format and Adobe Website Clicking the Online manual in PDF format link will take you to the latest version of the user guide for
this Router. The guide will be in Adobe Acrobat Portable Document File (.pdf)
format. You will need the Adobe Acrobat Reader to view this pdf. If you do not
have the Acrobat Reader, click the Adobe Website link to download it. These
links work only if you are connected to the Internet.
Figure 5-9
If you should need any further information about anything on this screen, click
the Help button.
Help
Upgrade Firmware New firmware versions are posted at
www.NetworkEverywhere.com and can be downloaded for free. If the Router
can access the Internet already, there’s no need to download a newer firmware
version, unless that version has a new feature that you want to use. (To learn
about
any
new
firmware
with
new
features,
visit
www.NetworkEverywhere.com.) Loading new firmware onto the Router does
not always enhance the speed or the quality of your connection.
To upgrade the Router’s firmware:
1. Download the firmware upgrade file from www.NetworkEverywhere.com,
and extract the file using archive software such as WinZip.
2. Select the Help tab (see Figure 5-10).
Note: By upgrading the Router’s firmware, you may lose the Router’s
configuration settings.
3. Click Upgrade Firmware to display a new window.
4. Click the Browse button to find the firmware upgrade file you extracted.
5. Double-click the firmware file you extracted. Click the Upgrade button
and follow the on-screen instructions.
Advanced Setup
Figure 5-10
Under the Help tab, shown in Figure 5-10, you’ll find links to all of the utility’s internal support documentation along the left margin, including the following:
Network Everywhere Website Clicking this link will take you to Network
Everywhere’s website, www.NetworkEverywhere.com, provided you are connected to the Internet.
26
The following instructions are for advanced users or users whose setup require
special configuration. When you click the Advanced Setup tab, you will be able
to set up these features. There are seven additional tabs available.
• Filters - Filters block specific internal users from Internet access and enable
Virtual Private Network (VPN) sessions.
• Forwarding - Sets up public services on your network.
27
Network Everywhere® Series
Wireless-B Broadband Router
• Dynamic Routing - Sets up the Router so it will automatically adjust to physical changes in the network’s layout.
• Static Routing - Sets up static routes needed when network information must
travel to a specific host or network.
• DMZ Host - Allows one local user to be exposed to the Internet for use of special-purpose services such as online gaming or videoconferencing.
• MAC Address Cloning - Allows you to “clone” your Ethernet adapter’s MAC
address onto the Router.
• Wireless - Allows you to set up advanced wireless settings.
Filters
From the Filters screen, shown in Figure 5-11, you can block specific internal
users from accessing the Internet and enable Virtual Private Network (VPN)
sessions. You can set up filters by using IP addresses or network port numbers
(or a range of ports).
Filtered Private IP Range To set up a filter using IP addresses, enter the range
of IP addresses you wish to filter in the IP address fields. Users with filtered
IP addresses will not be able to access the Internet at all. If you only want to
filter one IP address instead of a range of IP addresses, enter the same value
into both fields. For instance, if you wish to filter the PC with the IP address
of 192.168.1.5, enter 5 into both fields on one line: 192.168.1.5 ~ 192.168.1.5.
Click the Apply button when finished.
Filtered Private Port Range To filter users by network port number, enter a
network port number or a range of network ports. Select the protocol for each
port number you want to filter, TCP or UDP. Enter the port numbers you want
to filter in the port numbers fields. Users connected to the Router will no
longer be able to access any port number listed there. Click the Apply button
when you’re done.
28
Figure 5-11
Private MAC Filter This feature filters the Ethernet adapter’s specific MAC
address from going out to the Internet.
To check your Ethernet adapter’s MAC address, run winipcfg or ipconfig in
the command prompt, depending on which Windows operating system you are
using. To set the MAC filter, click the Edit MAC Filter Setting button. When
a second window appears (see Figure 5-14), select the range in the drop-down
box, and at the MAC number prompt, enter the 12-digit MAC address you want
to filter. Click the Apply button and the Continue button, before closing the
window. For information on obtaining a MAC address, go to “Appendix D:
Finding the MAC Address and IP Address for Your Ethernet Adapter.”
29
Network Everywhere® Series
Block WAN Requests By enabling the Block WAN Request feature, you can
prevent your network from being “pinged,” or detected, by other Internet
users. The Block WAN Request feature also reinforces your network security
by hiding your network ports. Both functions of the Block WAN Request feature make it more difficult for outside users to work their way into your network. This feature is enabled by default.
Wireless-B Broadband Router
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button.
If you should need any further information about anything on this screen, click
the Help button.
Forwarding
IPSec Pass Through This feature lets you use IPSec Pass Through. IPSec
Pass Through is enabled by default.
To disable IPSec Pass Through, click on Disable.
PPTP Pass Through Point-to-Point Tunneling Protocol is the method used to
enable VPN sessions. PPTP Pass Through is enabled by default.
To disable this feature, click on Disable next to PPTP Pass Through.
L2TP Pass Through This feature lets you use L2TP Pass Through. L2TP Pass
Through is enabled by default.
To disable this feature, click on Disable next to L2TP Pass Through.
Remote Management This feature allows you to manage the Router from a
remote location, via the Internet. To enable this feature, click on Enable, and
enter the desired port number (default is 8080). Click the Apply button and
then the Continue button. Remote Management must be activated before you
can manage the Router from a remote location. If you wish to use this feature
on the browser, enter http:\\:8080. (Enter your specific
Internet IP Address in place of .) Remote Management
involves an inherent security risk and should not be enabled without first
changing the Password (from the Setup screen) from its default settings.
To disable this feature, click on Disable.
Use default MTU (Maximum Transmission Unit) This feature specifies the
largest packet size permitted for network transmission. Select Enable and enter
the value desired. You should leave this value in the 1200 to 1500 range. Most
DSL users should use the value 1492. For static and dynamic connections, the
default MTU value is set at 1500 when disabled. For PPPoE connections, the
default MTU value is set at 1492 when disabled.
30
Figure 5-12
UPnP Forwarding
Clicking the Forwarding tab will access the UPnP Forwarding screen, shown in
Figure 5-12. This screen displays preset application settings as well as options
for customization of port services for other applications.
31
Network Everywhere® Series
Wireless-B Broadband Router
The Preset Applications at the top of the list are among the most widely used
Internet applications. They include the following:
•
NNTP (Network News Transfer Protocol) The protocol used to connect to
Usenet groups on the Internet.
•
FTP (File Transfer Protocol) A protocol used to transfer files over a
TCP/IP network (Internet, UNIX, etc.). For example, after developing the
HTML pages for a website on a local machine, web developers typically
upload the files to the web server using FTP. FTP includes functions to log
onto the network, list directories, and copy files. FTP operations can be performed by typing commands at a command prompt or via an FTP utility
running under a graphical interface such as Windows. FTP transfers can
also be initiated from within a web browser by entering the URL preceded
by ftp://.
•
SNMP (Simple Network Management Protocol) A widely used network
monitoring and control protocol. Data is passed from SNMP agents, which
are hardware and/or software processes reporting activity in each network
device (switch, router, bridge, etc.) to the workstation console used to oversee the network. The agents return information contained in a MIB
(Management Information Base), which is a data structure that defines
what is obtainable from the device and what can be controlled (turned off,
on, etc.).
•
Telnet A terminal emulation protocol commonly used on Internet and
TCP/IP-based networks. It allows a user at a terminal or computer to log
onto a remote device and run a program.
•
SMTP (Simple Mail Transfer Protocol) The standard e-mail protocol on
the Internet. It is a TCP/IP protocol that defines the message format and the
message transfer agent (MTA), which stores and forwards the mail.
•
DNS (Domain Name System) The way that Internet domain names are
located and translated into IP addresses. A domain name is a meaningful
and easy-to-remember “handle” for an Internet address.
Enter the number of the internal port used by the server in the Int. Port column. Check with the Internet application software documentation for more
information.
Enter the IP address of the server that you want the Internet users to be able to
access. For information about finding the IP address, go to “Appendix D:
Finding the MAC Address and IP Address for Your Ethernet Adapter.”
You must check the Enable box to enable the applications you have defined.
•
TFTP (Trivial File Transfer Protocol) A version of the TCP/IP FTP protocol that has no directory or password capability.
•
Finger A UNIX command widely used on the Internet to find out information about a particular user, such as his or her telephone number, whether
the user is currently logged on, and the last time the user was logged on. The
person being “fingered” must have placed his or her profile on the system
in order for the information to be available. Fingering requires entering the
full user@domain address, for example, name@universityname.edu.
•
•
32
HTTP (HyperText Transport Protocol) The communications protocol used
to connect to servers on the World Wide Web. Its primary function is to
establish a connection with a web server and transmit HTML pages to the
client web browser.
POP3 (Post Office Protocol 3) A standard mail server commonly used on
the Internet. It provides a message store that holds incoming e-mail until
users log on and download it. POP3 is a simple system with little selectivity. All pending messages and attachments are downloaded at the same time.
POP3 uses the SMTP messaging protocol. (SMTP may also need to be forwarded.)
To add a Customized Application using UPnP Forwarding:
1. Enter the name of the application in the appropriate Customized
Applications field.
2. Next to the name of the application, enter the number of the external port
used by the server in the Ext. Port column. Check with the Internet application software documentation for more information.
3. On the same line, select Protocol TCP or Protocol UDP.
4. Enter the number of the internal port used by the server in the Int. Port column. Check with the Internet application software documentation for more
information.
5. Enter the IP address of the server that you want the Internet users to be able
to access. For information about finding the IP address, go to “Appendix D:
Finding the MAC Address and IP Address for Your Ethernet Adapter.”
6. Check the Enable box to enable the services you have defined. UPnP
Forwarding will not function if the Enable button is left unchecked. This is
disabled (unchecked) by default.
33
Network Everywhere® Series
To apply any of the settings you’ve changed on this page, click the Apply button.. To cancel any values you’ve entered on this page, click the Cancel button. If you should need any further information about anything on this screen,
click the Help button.
Port Range Forwarding
Click the View Port Range Forwarding button to access the Port Range
Forwarding screen, shown in Figure 5-13. To return to the UPnP Forwarding
screen, click the View UPnP Forwarding button.
Wireless-B Broadband Router
Port Range Forwarding sets up public services on your network, such as web
servers, ftp servers, e-mail servers, or other specialized Internet applications.
(Specialized Internet applications are any applications that use Internet access
to perform functions such as videoconferencing or online gaming. Some
Internet applications may not require any forwarding.) When users send this
type of request to your network via the Internet, the Router will forward those
requests to the appropriate PC. Before using Forwarding, the Router’s DHCP
function must be disabled under the DHCP tab and the Router must be assigned
a new static LAN IP address because the IP address may change when using
the DHCP server.
If you need to forward all ports to one PC, see the “DMZ” section.
To add a Customized Application using Port Range Forwarding:
1. Enter the name of the application in the appropriate Customized
Application field.
2. Next to the name of the application, enter the number of the external port
used by the server in the Ext. Port column. Check with the Internet application software documentation for more information.
3. On the same line, select Protocol TCP or Protocol UDP.
4. Enter the IP address of the server that you want the Internet users to be able
to access. For information about finding the IP address, go to “Appendix D:
Finding the MAC Address and IP Address for Your Ethernet Adapter.”
5. Check the Enable box to enable the services you have defined. Port Range
Forwarding will not function if the Enable button is left unchecked. This is
disabled (unchecked) by default.
6. Configure as many entries as needed—the Router supports up to 10 ranges
of ports. Click the Apply button.
Figure 5-13
34
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button.
If you should need any further information about anything on this screen, click
the Help button.
35
Network Everywhere® Series
Dynamic Routing
Port Triggering
From the Port Range
Forwarding or UPnP
Forwarding screens,
click
the
Port
Triggering button to
access
the
Port
Triggering
screen,
shown in Figure 5-14.
This allows the Router
to watch outgoing data
for specific port numbers. The IP address of
the computer that sends
the matching data is
remembered by the
Router, so that when
the requested data
returns through the
Router, the data is
pulled back to the proper computer by way of
IP address and port
mapping rules.
Wireless-B Broadband Router
Figure 5-15
Figure 5-14
1. Enter the Application Name of the trigger.
2. Enter the Trigger Port Range used by the application. Check with the
Internet application for the port number needed.
3. Enter the Incoming Port Range used by the application. Check with the
Internet application for the port number needed.
4. Click the Apply button. Click the Cancel button to cancel any values
you’ve entered.
From the Dynamic Routing screen, shown in Figure 5-15, you can enable the
Router to automatically adjust to physical changes in the network’s layout. The
Router, using the RIP protocol, determines the network packets’ route based on
the fewest number of hops between the source and the destination. The RIP protocol regularly broadcasts routing information to other routers on the network.
To set up Dynamic Routing:
1. Choose the correct Working Mode. Gateway mode should be used if the
Router is hosting your network’s connection to the Internet. Router mode
should be selected if the Router exists on a network with other routers. In
Router Mode, any computer connected to the Router will not be able to connect to the Internet unless you have another router functioning in the
Gateway mode.
2. Choose a Dynamic Routing path protocol for either transmission (TX:) or
reception (RX:) of network data by selecting Enabled.
Click the Show Routing Table button to open a chart displaying how data is
routed through your LAN.
36
37
Network Everywhere® Series
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button.
If you should need any further information about anything on this screen, click
the Help button.
Static Routing
Wireless-B Broadband Router
To delete a Static Routing entry, select an entry, and click the Delete this
entry button.
2. Enter the following data to create a new static route.
Destination LAN IP: The Destination LAN IP is the address of the remote
network or host to which you want to assign a static route. Enter the IP
address of the host for which you wish to create a static route here. If you
are building a route to an entire network, be sure that the network portion
of the IP address is set to 0. For example, the Router’s standard IP address
is 192.168.1.1. Based on this address, the address of the routed network is
192.168.1.x, with the last digit “x” determining the Router’s place on the
network. Therefore you would enter the IP address 192.168.1.0 if you wanted to route to the Router’s entire network, rather than just to the Router.
Subnet Mask: The Subnet Mask determines which portion of an IP
address is the network portion, and which portion is the host portion. Take,
for example, a network in which the Subnet Mask is 255.255.255.0. This
determines (by using the values 255) that the first three numbers of a network IP address identify this particular network, while the last digit (from
1 to 254) identifies the specific host.
Default Gateway: This IP address should be the IP address of the gateway
device that allows for contact between the Router and the remote network
or host.
Figure 5-16
If the Router is connected to more than one network, it may be necessary to set
up a static route between them. This can be accomplished from the Static
Routing screen, shown in Figure 5-16. A static route is a pre-determined pathway that network information must travel to reach a specific host or network.
From the Static Routing tab, click the Show Routing Table button to view the
current static routing configuration.
To create a static route entry:
Hop Count: This determines the maximum number of steps between network nodes that data packets will travel. A node is any device on the network, such as PCs, print servers, routers, etc. The maximum metric, or
measure, of hops is 15.
Interface: Select LAN or WAN, depending on the location of the static
route’s final destination.
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button.
If you should need any further information about anything on this screen, click
the Help button.
1. Select a Static Route Entry from the drop-down list. The Router supports
up to 20 static route entries.
38
39
Network Everywhere® Series
DMZ Host
Wireless-B Broadband Router
MAC Address Clone
Figure 5-17
From the DMZ Host screen, shown in Figure 5-17, you can expose one local
user to the Internet for a special-purpose service such as Internet gaming and
videoconferencing.
Port Range Forwarding forwards a maximum of 10 ranges of ports, and DMZ
Hosting forwards all the ports for one PC at the same time. DMZ Hosting is
less secure.
•
To expose one PC, enter the computer’s IP address. For more information
about finding a computer’s IP address, refer to “Appendix D: Finding the
MAC Address and IP Address for Your Ethernet Adapter.”
•
Deactivate DMZ by entering 0 in the field. (This is the default setting.)
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button.
If you should need any further information about anything on this screen, click
the Help button.
40
Figure 5-18
The Router’s MAC address is a 12-digit code assigned to a unique piece of
hardware for identification, like a social security number. If your ISP requires
MAC address registration, find your adapter’s MAC address by following the
instructions in “Appendix D: Finding the MAC Address and IP Address for
Your Ethernet Adapter.”
Enter the 12 digits of your adapter’s MAC address in the on-screen fields (see
Figure 5-18). This “clones” your Ethernet adapter’s MAC address onto the
Router, so you do NOT have to call your ISP to change the registered MAC
address to the Router’s MAC address.
To apply any of the settings you’ve changed on this page, click the Apply button. To cancel any values you’ve entered on this page, click the Cancel button.
If you should need any further information about anything on this screen, click
the Help button.
41
Network Everywhere® Series
Wireless
Wireless-B Broadband Router
•
RTS Threshold. This value should remain at its default setting of 2,346.
Should you encounter inconsistent data flow, only minor modifications are
recommended.
•
Fragmentation Threshold. This value indicates how much of the Router’s
resources are devoted to recovering packet errors. The value should remain
at its default setting of 2,346. If you have decreased this value and experience high packet error rates, you can increase it again, but it will likely
decrease overall network performance. Only minor modifications of this
value are recommended.
•
DTIM Interval. This value indicates the interval of the Delivery Traffic
Indication Message (DTIM). A DTIM field is a countdown field informing
clients of the next window for listening to broadcast and multicast messages. When the Router has buffered broadcast or multicast messages for
associated clients, it sends the next DTIM with a DTIM Interval value.
Clients for the Router hear the beacons and awaken to receive the broadcast
and multicast messages.
•
Basic Rates. The basic transfer rates should be set depending on the speed
of your wireless network. You must select 1-2 (Mbps) if you have older
802.11 compliant equipment on your network, such as wireless adapters
that support only 1 or 2 Mbps. Selecting 1-2 (Mbps), however, does not
limit the basic transfer rates of faster adapters.
•
TX Rates. Select all the rate at which you wish the Router to communicate
within your wireless network.
•
Preamble Type. The preamble defines the length of the CRC block for
communication between the Router and the roaming Network Card. (High
network traffic areas should use the shorter preamble type.) Select the
appropriate preamble type and click the Apply button to set it.
•
Authentication Type. You may choose between Open System, Shared
Key, and Both. The Authentication Type default is set to Open System, in
which the sender and the recipient do NOT share a secret key. Each party
generates its own key-pair and asks the receiver to accept the randomlygenerated key. Once accepted, this key is used for a short time only. Then
a new key is generated and agreed upon. Shared Key is when both the
sender and the recipient share a secret key.
Figure 5-19
Before making any changes to the Wireless tab, shown in Figure 5-19, please
check the wireless settings for all your wireless PCs, as these changes will alter
the Router’s effectiveness. In most cases, these settings do not need to be
changed.
•
42
Beacon Interval. This value indicates the frequency interval of the beacon.
A beacon is a packet broadcast by the Router to keep the network synchronized. A beacon includes the wireless LAN service area, the IP address, the
Broadcast destination addresses, a time stamp, Delivery Traffic Indicator
Maps, and the Traffic Indicator Message (TIM).
43

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Linearized                      : No
Create Date                     : 2003:10:31 01:48:49Z
Modify Date                     : 2003:11:18 15:39:44+01:00
Page Count                      : 24
Creation Date                   : 2003:10:31 01:48:49Z
Mod Date                        : 2003:11:18 15:39:44+01:00
Producer                        : Acrobat Distiller 5.0.5 (Windows)
Author                          : rebecca
Metadata Date                   : 2003:11:18 15:39:44+01:00
Creator                         : rebecca
Title                           : NWR11B user guide.qxd
Page Mode                       : UseOutlines
Has XFA                         : No

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