Wireless Internet Access Server
WRT-2110
For situations where the WRT-2110 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.
8.1 Advanced Internet ScreenThis screen provides access to the advanced Internet features, and provides a convenient overview and control center. An example screen is shown below.
Figure 25: Advanced Internet Screen
On this screen, you can enable any required feature. By default, all features are disabled.
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 26: Special Applications Screen
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Configuration
data must be obtained from the Service/Application provider. |
Some Special Applications have been defined not enabled.
This data must be obtained from the service provider.
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.
Figure 27: Virtual Servers
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, and can be checked on the "WAN
Status" screen.
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 LAN IP Address of each Virtual Server (the PC on your LAN running the Server software) is required for configuration. But if using DHCP, the LAN IP Address of a PC may change. To solve this problem, you can use either of these methods:
The WRT-2110 supports two (2) types of Virtual Servers:
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The TOTAL number of Virtual Servers which can be used at any time is 10. |
Virtual Server Configuration
The Virtual Servers screen is reached by the Advanced Internet - Virtual Servers link. An example screen is shown below.
Figure 28: Virtual Server Screen.
Simply select the Server type or types you wish to use, enter the IP Address of the server on your LAN, and click "Save".
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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 29: User Defined Virtual Servers
This database operates in the same way as the other databases:
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. |
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From the Internet, ALL Virtual Servers have the IP Address allocated by your ISP, as shown on the WAN Status screen. |
Once configured, anyone on the Internet
can connect to your Virtual Servers. They must use the IP Address allocated
to this device by your ISP, as shown on the WAN Status screen.
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.
It is possible to configure the WRT-2110 itself as a Virtual Web Server. Once this is done, you can configure this device through the Internet.
For the remote PC, the destination
IP Address is the IP Address shown on the External LAN Port screen.
Upon connecting to the WRT-2110, you will be prompted for the device password.
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Ensure that a password has been set! |
To make the WRT-2110 a Virtual Web Server:
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.
To Internet users, the IP Address of the DMZ computer is the IP Address allocated by your ISP, as shown on the "WAN Status" screen.
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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:
Figure 30: 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 (Internet) IP Address |
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To connect to the DMZ PC,
Internet users must use the IP Address of this device, as seen on the
WAN port. This IP Address is allocated by your ISP, and can be checked
on the "WAN Status" screen.
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 on the "WAN Status" screen. |
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Copyright (c) 2001, Planet Technology Corp. |