Star Tech Development BR4100DC - Manual (Page 29)

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Virtual Server
Use the Virtual Server function when you want different servers/clients in your LAN to
handle specific applications (e.g., email, FTP, web server). Using different port numbers,
computers can recognize a particular application process or network service. The Virtual
Server function allows you to re-direct a remote request to a particular LAN private IP
address.
NOTE: The Virtual Server function has priority over the DMZ function (see page 35) if
there is a conflict between the two.
Parameter Description
Private IP Enter the private LAN client/host IP address that
the packet will be sent to. NOTE: You need to give
your LAN PC clients a fixed/static IP address
outside the specified pool (see page 25) for Virtual
Server to work properly.
Private Port Enter the port number of the private client/host
that the Public Port will be mapped to.
Type Select the port’s protocol type (TCP or UDP). If you
are unsure of the type, leave it as the default TCP
protocol.
Public Port Enter the service (Internet application) port number
from the Internet that will be re-directed to the
above Private IP address on your LAN.