XRT-101
Internet SOHO Router
User's Manual


Appendix E. Virtual Servers


Overview

This feature is available only if you are using the Internet Access Server for shared Internet access, rather than for LAN-to-LAN connection.
The Virtual Servers feature allows Internet users to access standard Servers on your LAN, via the Internet Access Server.

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. However, your LAN must have an existing connection to the Internet. Internet users cannot open a connection.

Virtual Server operation is illustrated below.

Figure 1: Virtual Server Operation

IP Address seen by Internet Users

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 the IP Address on the External LAN Port screen.

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Types of Virtual Servers

The Internet Access Server supports two (2) types of Virtual Servers:

Note that the TOTAL number of Virtual Servers which can be used is 10.

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Virtual Server Configuration

The Virtual Servers screen is reached via the Virtual Servers link on the Advanced Internet Features screen. An example screen is shown below.

Figure 2: Virtual Servers

Operation

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User-defined Virtual Servers

If the type of Server you wish to use is not listed on the Virtual Servers screen, you can define it using this feature.
The screen for this function is reached via the User Defined Virtual Servers option on the Advanced Internet Features screen.

Figure 3: User Defined Virtual Servers

Operation

Data

Name Enter the desired name. Note the limitations on names:
  • Multiple words are NOT allowed
  • Punctuation and special characters should NOT be used.
  • Names are case insensitive (case is ignored).
Enable Use this to Enable or Disable support for this Server, as required.
IP Address The IP Address of the PC on your LAN which is running the Server software.
Protocol Select the protocol (TCP or UDP) used by the Server.
Internal Port Number Enter the port number used by the Server to connect to clients.
External Port Number 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 you to configure the server to use one port address, while clients use a different port address
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Connecting to the Virtual Servers

Once configured, anyone on the Internet can connect to your Virtual Servers. For the destination address, they must enter the IP Address shown in the IP Address allocated by ISP on the Internet Account screen for the port you are using.

This address should be static (fixed) to make connection easier.
e.g. http://203.70.249.252


Using this Device as a Virtual Web Server

It is possible to configure the Internet Access Server 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 allocated by ISP shown on the Internet Account screen, for the port you are using.
Upon connecting to the Internet Access Server, you will be prompted for the device password.
You should set a password!

Procedure:


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