This Chapter explains how to use the LevelOne WBR-1101TX's "Advanced Internet" features.
For situations where the LevelOne WBR-1101TX is being used to provide shared Internet access, the following advanced features are provided.
This chapter contains details of the configuration and use of each of these features.
This screen provides access to the advanced Internet features, and provides a convenient overview and control center. An example screen is shown below.
Figure 43: Advanced Internet Screen
On this screen, you can enable or disable any required feature.
This feature is only required if you wish to use Internet applications which require 2-way communication, multiple connections, or combined TCP/UDP connections.
Examples of such applications are Internet Videoconferencing, Telephony, Games Servers, and other special-purpose Servers.
Generally, you will become aware of the need for this feature when an Internet application is unable to function correctly.
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At any time, only one (1) PC can use each Special Application. |
This screen can be reached by selecting Special Internet Applications. An example screen is shown below.
Figure 44: Special Applications Screen
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Configuration data must be obtained from the Service/Application provider. |
Some Special Applications have been defined but not enabled.
Managing Special Application Entries
Enable
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Disable
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As above, but uncheck the Enable checkbox.
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Disable all
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On the Advanced Internet screen, you can Enable or Disable the
Special Applications feature.
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Delete
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Modify (Edit)
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Create a new entry
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This data must be obtained from the service provider.
Select Entry |
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Name
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This drop-down list shows all Special Applications which have been
defined.
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Get Data
Button |
After selecting the desired entry, click this button to view its current
settings in the Details section of the screen.
You can then make any changes required. Click the "Update" button to save
your changes.
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Details |
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Name
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Enter a descriptive name to identify this application entry.
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Enable
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Use this to Enable or Disable support for this application, as
required.
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Outgoing
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Protocol
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The protocol (TCP or UDP) used when you connect to the special application
service.
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Port Range:
Start |
The beginning of the range of port numbers used by the application server,
for data you send to it. If the application uses a single port number, enter it
in both the "Start" and "Finish" fields.
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Port Range:
Finish |
The end of the range of port numbers used by the application server, for
data you send.
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Incoming
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Protocol
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The protocol (TCP or UDP) used when the application or service sends data
to you.
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Port Range:
Start |
The start of the range of port numbers used by the application server when
data is sent to you. If using only one port number, enter it in both the "Start"
and "Finish" fields.
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Port Range:
Finish |
The end of the range of port numbers used by the application server, when
data is sent to you.
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Clear Form
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Clears all data, ready for input of a new entry.
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Add
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Add a new entry to the Special Applications database, using the data shown
on screen.
The name shown in the drop-down list is ignored.
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Delete
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Delete the Special Application entry selected in the drop-down list,
regardless of whether its details are shown on screen.
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Update
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Update the Special Application entry selected in the drop-down list, using
the data shown on screen.
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List All
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List all Special Application entries.
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Cancel
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Reverse any changes made since the last "submit" operation (i.e. since
clicking any other button).
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The URL Filter provides a means to block access to undesirable Web sites. The blocking action applies to all PCs accessing the Internet via the LevelOne WBR-1101TX.
The URL Filter feature works by matching the "Filter Strings" (text strings) against the requested URL. For example, by inputting the word "bad" in the URL Filter, any URL containing the letters "bad" in it will be blocked.
Note that if any component of the URL request contains one of the "Filter Strings", that request will be blocked while the URL Filter is enabled.
URL requests to Web (Internet) Servers include the following components:
All of these components are searched to see if they contain any of the "Filter Strings".
Tips
Data - URL Filter Screen
Site List |
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Site List
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This lists any existing entries. If you have not entered any values, this
list will be empty.
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Filter String
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To add an entry to the list, enter it here, and click the "Add" button.
An entry may be a Domain name (e.g. www.trash.com) or simply a string (e.g. ads/ ) Any URL which contains ANY entry ANYWHERE in the URL will be blocked.
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Buttons
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Delete/Delete All - Use this buttons to delete the selected entry or
all entries, as required. Multiple entries can be selected by holding down the
CTRL key while selecting. (On the Macintosh, hold the SHIFT key while
selecting.)
Add - Use this to add the current Filter String to the site
list.
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You can use the Internet Access Log, accessed from the Status screen, to see which sites have been blocked by the URL Filter. |
This feature allows you to make Servers on your LAN accessible to Internet users. Normally, Internet users would not be able to access a server on your LAN because:
The "Virtual Server" feature solves these problems and allows Internet users to connect to your servers, as illustrated below.
Note that, in this illustration, both Internet users are connecting to the same IP Address, but using different protocols.
To Internet users, all virtual Servers on your LAN have the same IP Address. This IP Address is allocated by your ISP.
This address should be static, rather than dynamic, to make it easier for Internet users to connect to your Servers. If using a Static IP Address, it is entered on the "WAN" screen.
The LevelOne WBR-1101TX supports two (2) types of Virtual Servers:
Note: The TOTAL number of Virtual Servers which can be used at any time is 10.
The Virtual Servers screen is reached by the Advanced Internet - Virtual Servers link.
Figure 47: Virtual Server Screen.
Data - Virtual Server Screen
WAN IP Address |
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Current IP Address
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This shows the IP Address which Internet users must use to connect to any
of your Virtual Servers.
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Virtual Servers |
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Type
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Select the type of Server you wish to use.
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Enable
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Check to enable this Server.
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LAN IP Address
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For each entry, the PC must be running the appropriate Server software. |
If the type of Server you wish to use is not listed on the Virtual Servers screen, you can define it using this feature.
Select Advanced Internet - User Defined Virtual Servers to see a screen like the example below.
Figure 48: User Defined Virtual Servers
Managing User Defined Virtual Servers
Enable a Server
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Disable a Server
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As above, but uncheck the Enable checkbox.
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Disable all Servers
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On the Advanced Internet screen, you can Enable or Disable the
Virtual Servers feature.
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Delete
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Modify (Edit)
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Create a new entry
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WAN IP Address |
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Current IP Address
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This shows the IP Address which Internet users must use to connect to any
of your Virtual Servers.
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Select Server |
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Name
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This lists any Servers you have defined. Click the "Get Data" button to
view the correct data for the selected Server.
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Get Data
Button |
After selecting the desired entry, click this button to view its current
settings in the Details section of the screen.
You can then make any changes required. Click the "Update" button to save
your changes.
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Details |
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Name
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Enter a descriptive name to identify this Server entry.
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Enable
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Use this to Enable or Disable support for this Server, as required.
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IP Address
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The IP Address of the PC on your LAN which is running the Server software.
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Protocol
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Select the protocol (TCP or UDP) used by the Server.
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Internal Port Number
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Enter the port number used by the Server to connect to clients.
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External Port Number
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The port number used by clients when connecting to the Server. This is
normally the same as the Internal Port Number.
If it is different, this device will perform a "mapping" or "translation" function, allowing the server to use one port address, while clients use a different port address. |
Buttons |
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Clear Form
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Clears all data, ready for input of a new entry.
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Add
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Add a new entry, using the data shown on screen.
The name shown in the drop-down list is ignored.
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Delete
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Delete the Virtual Server entry selected in the drop-down list, regardless
of whether its details are shown on screen.
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Update
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Update the Virtual Server entry selected in the drop-down list, using the
data shown on screen.
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List All
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List all User-defined Virtual Servers.
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Cancel
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Reverse any changes made since the last "submit" operation (i.e. since
clicking any other button).
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From the Internet, ALL Virtual Servers have the IP Address allocated by your ISP, as shown by the "WAN IP Address". |
Once configured, anyone on the Internet can connect to your Virtual Servers.
They must use the WAN Port IP Address (the IP Address allocated to this device
by your ISP).
e.g.
http://203.70.212.52
ftp://203.70.212.52
It is more convenient if you are using a Fixed IP Address from your ISP,
rather than Dynamic. If using a Fixed IP Address, it is entered on the
WAN screen.
This feature, if enabled, allows one (1) computer on your LAN to be exposed to all users on the Internet, allowing unrestricted 2-way communication between the "DMZ" PC and other Internet users or Servers.
This allows connection to special-purpose servers which require proprietary client software, or 2-way user connections such as Video-conferencing, which requires both users to run special software.
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To allow unrestricted access, the Firewall in this device is disabled, creating a security risk. |
You should use this feature only if the "Special Applications" feature is insufficient to allow an application to function correctly. This feature should be turned ON only when needed, and left OFF the rest of the time.
Select Advanced Internet from the navigation bar, then DMZ. You will see a screen like the following:
Data - DMZ Screen
Enable |
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Enable DMZ Feature
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Use this to Enable or Disable the DMZ feature. The DMZ feature should be
disabled when not required.
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LAN IP Address |
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LAN IP Address
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Enter the IP Address of the PC on your LAN which will become the "DMZ" PC.
If using DHCP, the LAN IP Address of a PC may change. To solve this
problem, you can use either of these methods:
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WAN IP Address |
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WAN IP Address
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This is the IP Address that Internet users must use to connect to the "DMZ"
PC.
This IP Address is allocated by your ISP. It is better if you are using a
fixed IP Address, so that it never changes. This will make it easier for
Internet users to connect to you. If using a Static IP Address, it is entered on
the "WAN" screen.
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To Internet users, the IP Address of the DMZ computer is the IP Address allocated by your ISP, as shown by the "WAN IP Address". |