PLANET ADN-4100 - Manual (Page 50)

public IP address. It uses the specified TCP or UDP protocol and port, and
redirects these requests to the server on your LAN with the specified LAN IP
address. Note that the specified private IP address must be within the available
IP address range of the subnet where the device is in.
Choose Advanced > Port Forwarding. The page as shown in the following
figure appears:
Click Add to add a virtual server. See the following figure:
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