Billion Electric Company VGP User Manual

 

Because NAT can act as a “natural” Internet firewall, your router protects your network from being 
accessed by outside users when using NAT, as all incoming connection attempts will point to your 
router unless you specifically create Virtual Server entries to forward those ports to a PC on your 
network.  

When your router needs to allow outside users to access internal servers, e.g. a web server, FTP 
server, Email server or game server, the router can act as a “virtual server”. You can set up a local 
server with a specific port number for the service to use, e.g. web/HTTP (port 80), FTP (port 21), 
Telnet (port 23), SMTP (port 25), or POP3 (port 110), When an incoming access request to the 
router for a specified port is received, it will be forwarded to the corresponding internal server. 

 

 

A self-defined time period to enable your virtual server.  You may specify a time 

schedule or Always on for the usage of this Virtual Server Entry.  For setup and detail, refer to 
Time Schedule

 section 

: Users-define description to identify this entry or click 

to select existing 

predefined rules.   

 20 predefined rules are available.  Click the Radio button to select the rule; 

Application, Protocol and External/Redirect Ports will be filled after the selection.    

: It is the supported protocol for the virtual server. In addition to specifying the port 

number to be used, you will also need to specify the protocol used. The protocol used is 
determined by the particular application. Most applications will use TCP or UDP.  

The Port number on the Remote/WAN side used when accessing the virtual server.  

The Port number used by the Local server in the LAN network. 

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