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DSL-504T DSL Router User’s Guide
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To configure a virtual server set, define the following settings in the Virtual Server configuration
menu located in the top half of the browser window.
Parameter Description
Rule Name
Provide a name for the rule. This name will not appear in the list
below, however it may be useful if you later need to edit the
settings for the rule. Rule names are optional.
Private IP
This is the IP address of the server on your LAN that will provide
the service to remote users. The Private IP address is used to
direct the service to a specific computer on your private network
such as an FTP, Email or public web server. Type in the IP
address of the server used for the service being configured here.
Protocol
You can select the transport protocol (TCP or UDP) that the
application on the virtual server will use for its connections.
Select one of the following options from the pull-down menu to
define a TCP, UDP or Both. The choice of this protocol is
dependent on the application that is providing the service. If you
do not know which protocol to choose, check your application’s
documentation.
Port Start /Port End
Configure a range of ports for forwarding. Type the lowest
numbered port in the range in the Port Start space. Type the
highest numbered port in the Port End space. For a single port,
just enter the same number in both spaces.
Virtual server port redirection must be used with a specified
server or computer on the LAN (identified by the Private IP
address).
Port Map
This is the local port being forwarded to from the Port Start/Port
End port(s). Keep in mind that if you use a non-standard port
number for an application with a reserved UDP/TCP port, some
additional configuration may be required for the servers or
workstations using the application on the LAN side.
Click the Apply button to put the new virtual server configuration set or modification into effect.
Any server sets configured in the menu will appear in the Virtual Server List with the new settings.
The Router must save the new settings and reboot before the new virtual server configurations are
applied.
To remove any configuration set from the Virtual Server List, click on the trashcan icon for set you
want to delete.
Note
Some applications require multiple TCP or UDP ports to function properly. Applications such
as Internet gaming, video conferencing, and Internet telephony are some examples of
applications that often require multiple connections. These applications often conflict with
NAT, and therefore require special handling. See the discussion of DMZ configuration below.