D-Link DI-804HV Manual page 38

Using the Configuration Menu
Advanced > Virtual Server
The DI-804HV 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-804HV firewall feature filters out unrecognized packets to protect your LAN network
so all computers networked with the DI-804HV 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-804HV redirects the external
service request to the appropriate server within the LAN network.
ID-
Enable-
Service Ports-
Well known
services-
Service IP-
Schedule-
38
The ID number is automatically assigned
Select to activate the policy
Enter in the service port or ports to be used. A range of ports
can be specified with a hyphen. (e.g., 20-21)
Use the pull-down menu to select from a list of well-known
virtual services
The IP address of the internal computer that will be using the
virtual service
Select Always, or choose From and enter the time period dur-
ing which the virtual service will be available