Advanced IP SettingsThe Dell Wireless
2350 Broadband Router comes with an assigned IP address and IP subnet mask.
These settings apply only to the local network portion of the router. If you are
installing the unit on an existing network or simply want to change these
values, make sure the IP subnet mask is the same for all devices on your
network. The network portion of the IP address must also be the same for all
devices on your network.
While you are
changing the IP address, be aware of the following: ·
Changing
the IP address of the Dell Wireless 2350 Broadband Router also changes the IP address pool
for the DHCP server. ·
If
you are using the Dell Wireless 2350 Broadband Router with a cable modem or DSL line, you should assign
a private IP address. Private IP addresses are in one of three ranges: ·
10.0.0.1
to 10.254.254.254 ·
172.16.0.1
to 172.31.254.254 ·
192.168.0.1
to 192.168.254.254 ·
You
must use the new IP address to access the web-based configuration tool once the
changes have been saved.
Advanced
IP Settings DHCP Server SettingsDynamic Host
Configuration Protocol (DHCP), defines a way to automatically assign IP addresses to
computers on a network. IP addresses are managed by a DHCP server. If a Windows
computer is configured to obtain an IP address automatically, it automatically
gets an address from the DHCP server. DHCP
Server Settings Enable DHCP
Server Functions By default, the
Dell Wireless 2350 Broadband Router is set to function as a DHCP server. If you are installing the
unit on an existing network that already has a DHCP server or simply do not
want the Dell
Wireless 2350 Broadband Router to function as the network's DHCP server, click to
deselect Enable DHCP Server Functions to disable the DHCP server
function. IP Address
Pool Range The IP Address
Pool Range section provides a means of controlling a low and high value for the
IP addresses on a network. Use the indicated fields to define the range of IP
addresses you would like the Dell
Wireless 2350 Broadband Router to provide to DHCP clients. The
valid range of numbers you should enter is between 1 and 254. The lease time is the
amount of time a user will be allowed to use the IP address assigned by the
DHCP server. You may specify the lease time that DHCP server offers for the
client to use the IP address. This setting is especially useful on campuses or
other environments where users change frequently. IP Address
Reservation Specific IP
addresses may also be reserved for particular devices in a network. The IP
Address Reservation fields allow you to reserve up to 20 IP addresses for a
specific system. The MAC Address field is the physical address of the
network card on the client computer. Use the input fields under IP Address
to indicate the IP address for those devices that should use a manually defined
IP address. Time Zone Time
Zone Use the Time
Zone page to select your local time zone from the pull-down list. The Time Zone
Settings affect the Intruder Detection Log. This setting overrides the time
stamp on IP packets that are in Greenwich Mean Time (GMT). During the summer months, the clock will move one or several hours ahead. Countries have different change dates. In most of the U.S and Canada, daylight saving time begins on the first Sunday of April. Time reverts to standard time on the last Sunday of October. To enable daylight saving click the box Enable Daylight Saving. Advanced Wireless Advanced
Wireless Enable
Wireless This setting
enables radio transmission and reception on the Dell
Wireless 2350 Broadband Router. Hide my
wireless network Checking this
option disables the Dell
Wireless 2350 Broadband Router sending out beacon packets to the
wireless network. It is not selected by default and other users can easily find
and make association to your Dell
Wireless 2350 Broadband Router with the use of a site
survey tool. Mode The Dell
Wireless 2350 Broadband Router is 802.11g-compatible. You can select both b & g (dual mode),
or just 802.11b mode or just 802.11g mode from the Mode list. SSID Service Set Identifier
(SSID) is a 32-character name that uniquely identifies all the computers and
equipment that make up the wireless network. Transfer
Rate Transfer rate can
be set to automatic or some other fixed value. It is recommended that you set
the transfer rate to automatic (Auto) to allow the wireless network devices to
transmit at a rate they deem optimum at any given point of time. Channel The channel
settings let you set the channel for this router. The radio channel is the
place over which a communication transmission occurs. The operating channel
number depends on the regulatory domain.
Beacon
Interval The amount of time
in Kusecs (one Kusec equals 1,024 microseconds) between radio beacons from the
Dell
Wireless 2350 Broadband Router to its client stations. The value range is from 1 to 65535. RTS
Threshold This is the packet size
above which the Dell
Wireless 2350 Broadband Router will issue a Request to Send before sending the
packet. RTS (Request to
Send) mechanism prevents the Hidden Node problem. When two stations are
within range of the same Access Point (AP) but are not within range of each
other, they are hidden nodes for each other. The packets from these two stations
may collide if they arrive at the AP at the same time. To prevent data
collision with the hidden node, you can activate RTS mechanism. If RTS
mechanism is activated, the station will send a RTS first to inform the AP that
it is going to transmit the data. Then, the AP will reply with the CTS (Clear
to Send) to all stations within its range to notify all other stations and
reserve the bandwidth for your data. Fragmentation
Threshold The fragmentation
threshold, specified in bytes, determines whether data packets will be
fragmented and at what size. Packets that are smaller than the specified
fragmentation threshold value will not be fragmented. Packets that are larger
than the fragmentation threshold will be fragmented into smaller packets and
transmitted a piece at a time instead of all at once. Thus, it will reduce the
need for retransmission and improve overall network performance. Fragmentation
is activated usually when the system is in heavy traffic and interference
environment. The setting must be within the range of 256 to 2346 bytes. It is
recommended to use the default value or only minor reductions of this default
value. DTIM
Interval DTIM (Delivery
Traffic Indication Message) Interval, always a multiple of the beacon period,
determines how often the beacon contains a traffic indicator map (TIM). The TIM
alerts stations in sleep state to stay awake long enough to receive their data
frames. The value range is from 1 to 255. CTS
Protection mode This option allows
the user to enable
or disable operation of '802.11g' clients in an environment where a '802.11b' AP
is also broadcasting. Enabling this allows '802.11b' clients to perform better in this
environment. Disabling allows maximum throughput for '802.11g' clients. Wireless
Repeater Wireless repeater
can be used to increase the coverage of your wireless network and/or to provide
wired access to remote computers. You need two or more Dell Wireless 2350
Broadband Routers to set up wireless repeater. The access point that is
connected to the network is known as the root AP, the access points that
extend the coverage of this root AP are known as repeater APs.
Configuring your router for Wireless Repeater:
The
repeater AP must be located within the coverage of your root AP in order to
associate with the root AP and extend it's coverage.
To
Configure your Dell Wireless 2350 Broadband Router back as a root AP:
Restore
Defaults Parental Control Parental
Control IP filtering is a
mechanism that the Dell Wireless 2350 Broadband Router to accept or deny certain types of IP datagrams
based on the IP address, port number, protocol type, and other criteria. 1.
Click
the Add button. A pop-up Parental Control Rule window will
appear. 2.
Click
to select the IP address of the particular computer you want to control (for
example, your child's computer) in the IP Address list. 3.
To
block or grant access to the Internet during a period of time, specify the
start and end time from the Time Restriction list. 4.
Click
to select Allow or Deny from the Internet Access list. 5.
Enter
the URL that you want to allow or deny the access in the Web Site
Restrictions field. 6.
Click
to select Allow or Deny access to these web sites. 7.
Enter
the web keywords to deny traffic with the same keywords 8.
Click
the Submit button to store the changes. The figure above shows DNS
server status. User is able to see host name, IP address, and Source. For user hosting service with a
dynamic IP from ISP’s DHCP server,
Dynamic DNS allows server to match ever changing IP to work station
which the service is provided. Check “Enable Dynamic DNS” box and enter User
Name, Password, and Host Name to register with Server. Advance FilteringAdvance
Filtering
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NOTE: |
The
Access Control Settings apply to wireless client computers and not to wired
client computers. |
Port Forwarding Settings
Port
Forwarding Settings
DMZ
The DMZ
(demilitarized zone) feature allows access to all ports. (For example, if you
have problems hosting a game server, you can choose this option. This will open
all ports to your game server.)
1.
Click
to select Enable DMZ Host .
2.
Type
the IP address of the computer that you want to run the gaming application in
the DMZ IP Address field.
3.
Click
the Submit button to activate the setting.
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NOTE: |
Configuring
the Dell Wireless 2350 Broadband Router in DMZ mode is useful if you want to play certain games through
the Dell Wireless 2350 Broadband Router but the ports cannot be opened with all other existing
configuration tools. |
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NOTICE: |
Opening
a service to the Internet causes security concerns. Pay careful attention to
security alerts, and make sure that strong access controls and authentication
are in place before allowing access to any services. |
Custom Port
Forwarding Settings
Port Forwarding
may be more difficult than DMZ to configure. However, it provides a relatively
safe way of running an Internet application or providing an Internet service
from behind a firewall since only a single port (or a range of ports) is
exposed to the Internet. You can configure this port forwarding setting to
create a custom rule that defines a specific port and protocol for data traffic
to pass through to the specific computer on your LAN.
An example is an
HTTP server running on your LAN, which you want to be available to the
Internet. Your public IP address (that your ISP gives you) is X.X.X.X (The X is
a number), and you have a computer hosting the HTTP server at LAN address
192.168.2.2 on your Dell Wireless 2350 Broadband Router (192.168.2.1) controlled LAN. You can configure
192.168.2.2 to have port forwarding for port 80 (HTTP), then users on the
Internet can go to http://X.X.X.X and get the HTTP server (192.168.2.2). The
data traffic entering service port 80 will be directed to the computer
(192.168.2.2), and other computers on your LAN will not see this data traffic.
For some Internet
applications (such as Internet messaging and gaming applications), you can
configure this port forwarding setting so that these applications can function
correctly behind the firewall. These applications are required to have specific
TCP/UDP ports. The ports for these applications and the protocol type will
depend on what Internet services you are using. Check with your service
provider or application's user manual to have the information first.
Make sure you have
the following ports set up as described below.
1.
Click
the ADD button first to add entries.
2.
Enter
the desired name or description in the Service Name field.
3.
In
the Incoming Ports field, enter a range of ports. If you want to specify
only a single port number, enter the same number in both fields.
4.
In
the Destination IP Address field, enter the IP address of the computer
you want to receive the connection request.
5.
In
the Destination Port field, enter a port number or a range of ports of
the machine to which you are mapping.
7.
In
the Port type field, select TCP, UDP, or both protocols. The protocol
could be specified in your application's documentation.
8.
Click
the Submit button to activate the setting.
For example, if
you want to play the game Fighter Ace II on a computer with an IP address of
192.168.2.3, enter 3 for the Destination IP Address.
Select TCP as the Port type. Enter 50000 and 51000
for two fields of Incoming Ports and also for the Destination Port.
Click Submit button to activate the setting. For other games or services,
consult the application's user manual.
Commonly Used Ports
|
Services |
Protocol Type |
Ports |
|
HTTP (WEB Server) |
TCP |
80 |
|
FTP |
TCP |
20, 21 |
|
TELNET |
TCP |
23 |
|
SMTP (Mail Server) |
TCP |
25 |
|
POP3 (Mail Server) |
TCP |
110 |
|
IRC |
TCP |
6667 |
|
NNTP (News Server) |
TCP |
119 |
Port
Triggering
Port triggering
allows the router to watch outgoing data for a specific port number. The IP address
of the computer that sends the data is remembered by the router, so that when
the requested data returns through the router, the data will be passed to the
specific computer by way of IP address and port mapping rules. The router opens
the port when the Port Triggering happens. When the computer running the
application stops sending the data through this port, the router will close the
port.
1.
Click
the PORT TRIGGERING button first.
2.
Enter
the desired name or description in the Application Name field.
3.
In
the Trigger Port field, enter a port number. Check with your Internet
application provider for more information on what Trigger Port it is using.
4.
Select
TCP (Transmission Control Protocol), or UDP (User Datagram Protocol), or both
protocols as the Trigger Port Type.
5.
Specify
the range of the Public Ports by typing the start and end port numbers
in the required fields.
6.
Select
TCP (Transmission Control Protocol), or UDP (User Datagram Protocol), or both
(TCP and UDP) as the Public Port Type.
7.
Click
the Submit button to activate the setting.
Click the Submit
button to store the changes.
Static Routing
Static
Routing
Static routes are
manually configured routes to remote networks. That is, the route is predefined
and is not discovered by the Routing Information Protocol (RIP), as in
dynamic routing. Static routing allows you to assign a gateway to an IP address
or network. If there are routers on your internal network that do not function
with RIP 1 or 2, you can set up a static route to those routers.
The advantage to
using static routing is that network traffic is reduced; thus, static routing
is beneficial for slow Internet connections. Routing using static routes is
practical for small networks. For larger networks, the router needs to
dynamically keep track of changes in the physical wiring of the network, and
the use of dynamic routing (RIP) is recommended.
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NOTICE: |
The
Static Routing settings are intended for advanced network administrators
only. Do not change these settings unless you are certain of the correct values.
You may not be able to access the configuration tool if invalid information
is entered. |
To use static
routing, manually add the Destination IP Address, Subnet Mask, and Gateway IP
Address for each route you are adding to the Static Routing Table, and click Add.
Then click Submit. If you are routing to an entire network, the last
number in the destination IP address should be a zero (0); for example,
192.168.0.0.
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NOTE: |
In
static routing, the Dell Wireless 2350 Broadband Router does NOT dynamically discover
routing information and does NOT use RIP. The Dell Wireless 2350
Broadband Router currently
does NOT support RIP. |
Use the fields
beside each route and the Delete button to remove static routes from the
Static Routing Table.
Administration Settings
Password
Settings
The Dell Wireless 2350
Broadband Router uses a password to authenticate the user before allowing changes to be made to
any network settings. If you would like to change the current password, click
to select Change Your Password and enter the new password in both New
Password and Retype Password fields. Write down the password and
keep it in a secure location for future reference.
System
Administration
·
HTTP Port No.
Do not change the HTTP Port value unless you have reason to do so.
Typically, web servers listen for incoming web requests on port 80.
·
Allow remote user to configure the device
If you would like a remote user to be able to administer your Dell Wireless 2350
Broadband Router over the Internet, click to select titled Allow remote user to configure the
device. Enter the IP address for the remote administration host computer.
·
Allow remote user to ping the device
Click to select Allow remote user to ping the device to enable your Dell Wireless 2350
Broadband Router to be pinged by any user on the Internet. This feature is helpful
if you want to allow other Internet users to check the status of your Dell Wireless 2350
Broadband Router.
·
Enable UPnP function UPnP stands for Universal Plug and Play, a protocol which allows
UPnP-enabled client computers, such as Windows XP, to discover and configure
the Dell Wireless 2350 Broadband Router. One of most common use of UPnP on the router is to open
ports to allow application-specific data to be forwarded through the router for
various Internet services or gaming applications. The router detection and the
router configuration process can be carried out automatically by the
UPnP-enabled client applications such as MSN Messenger so you won't have
to do it manually. Click to select Enable UPnP function to enable this
service.
If you have an Windows XP system, you can use it to access and
control the router while the router's UPnP function is enabled. Here are some
examples of what you can do with UPnP from your Windows XP system.
Example 1: Access the router's web configuration tool without knowing its IP
address.
1.
Double-click
the My Network Neighborhood icon from the desktop.
2.
Double-click
the Broadband Router icon that is created for your router.
This will bring up the authentication screen of the router's Web configuration
tool.
3.
Type
the correct password and click the OK button to access the web
configuration tool.
Authentication Screen
Example 2: Manage the router's port forwarding rules from the Windows XP
interface.
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NOTE: |
If
you have already configured a port forwarding rule for the service through
the web configuration tool, you don't need to perform the following steps for
the same service again. |
4.
Right-click
the My Network Neighborhood icon on the desktop.
5.
Right-click
the Internet Connection icon created for the router.
Network Connections
6.
Right-click
the icon and left-click Properties.
7.
Click
Settings.
8.
Click
Add.
9.
Type
Description of service, IP address of the service host, External Port number
for this service, Internal Port number for this service, and click to select either
TCP or UDP. For example, the graph below shows an example of how to enable a
computer with an IP address 192.168.2.101 to host a public HTTP server.
Service Settings
10.
Click the OK button
to save the changes.