D-Link AirPro DI-764 Manual page 20

Using the Configuration Menu
Advanced > Virtual Server
The DI-764 can be configured as a virtual server so that remote users accessing
Web or FTP services via the public IP address can be automatically redirected to
local servers in the LAN (Local Area Network).
The DI-764 firewall feature filters out unrecognized packets to protect your LAN
network so all computers networked with the DI-764 are invisible to the outside
world. If you wish, you can make some of the LAN computers accessible from the
Internet by enabling Virtual Server. Depending on the requested service, the DI-764
redirects the external service request to the appropriate server within the LAN
network.
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