XiNCOM XC-DPG503 ユーザーズマニュアル

Virtual Servers

Figure 10.  Virtual Servers

Virtual Servers

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:

Your Server’s IP address is only valid on your LAN, not on the Internet.
Attempts to connect to devices on your LAN are blocked by the firewall in the XC-DPG503.

The “Virtual Server” feature solves these problems and allows Internet users to connect to your 

servers, as illustrated in Figure 10.

Once configured, anyone on the Internet can connect to your Virtual Servers. They must use the 

XC-DPG503’s Internet IP Address (the IP Address provided by your ISP).

Example:

http://205.20.45.34

ftp://205.20.45.34

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. However, you can use the Dynamic DNS feature (explained later 

in this chapter) to allow users to connect to your Virtual Servers using a URL, instead of an 

IP Address.

e.g.  

HTTP://my_domain_name.dyndns.org

   FTP://my_domain_name.dyndns.org

Settings - Virtual Server

Use this to Enable or Disable each Virtual server as required.

Select the desired Server type. If the type of Server you wish to use is 

not listed, use the Custom Virtual Server screen to define your own 

type.

LAN IP Address Enter the IP address of the PC on your LAN which is running the 

required Server software. 
Each PC should have a fixed IP address, or have a reserved IP 

address. (See the Host IP section earlier in this chapter for details on 

reserving an IP address.)

Note: In this illustration, both Internet users are connecting to the same IP Address 
but using different protocols.

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