Trendnet TW100-W1CA User Manual

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SubNetmask
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Provided by our ISP.  
Gateway/DNS server #1/DNS server #2:  These values will be automatically provided once 
you click “Obtain global port configuration automatically”. You can change the values if 
necessary. 
Virtual Server 
Being a natural Internet firewall, this IP Sharing device protects your network from being 
accessed by outside users. When there is application that  requires outside users to access 
internal servers (e.g. Web Server, Ftp Server, e-mail Server or News Server), this device can act 
as a virtual server to public services. You can set up a local server with specific port number 
which stands for the service (e.g. web(80), FTP(21), Telnet(23)). When this device receives an 
incoming access request for this specific port, it will be forwarded to the corresponding 
internal server. 
 
Figure 10 
Single Port/Port Range: For selecting between a specific port and a range of ports which you 
want the Internet users to be able to access. The valid port number ranges from 0 to 65535. 
Browse: If DHCP function is enabled, the distributed IP Addresses will appear on the screen. 
You can select the desired IP address (for the specified port) and add it to the server list. 
                                                                 
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 If you checked PPPoE in  Management tab (see the  Management section), the “Obtain global port 
configuration automatically” and the “Set static global port configuration”  fields  are  grayed out and 
will not accept any input.