D-Link EXPRESS ETHERNETWORK VDI-604 User Manual page 19

ADVANCED > VIRTUAL SERVER
The VDI-604 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 network.
The VDI-604 firewall feature filters out unrecognized packets to protect
your LAN network so all computers networked with the VDI-604 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 VDI-604 redirects the external
service request to the appropriate server within the LAN network.
The VDI-604 is also capable of port-redirection meaning incoming traffic
-19-