User`s manual

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3.6 NAT Configuration Setting
Network Address Translation (NAT) allows multiple users at your local site to
access the Internet through a single public IP address or multiple public IP
addresses NAT can also prevent hacker by mapping local addresses to public
address.
3.6.1 Virtual Server Setting:
This screen enables you to create a virtual server via SP916GL. If SP916GL is
set as a virtual server, remote users requesting Web or FTP services through
the WAN are directed to local servers in the LAN. The router redirects the
request via the protocol and port numbers to the correct LAN server. The Virtual
Sever profiles are listed in the table at the bottom of the page. Enter “Private IP”,
“Private Port”, “Type”, ”Public Port” in the appropriate fields and check
the ”Enabled” checkbox. After you complete the configuration, remember to
click “Apply” to continue.
Note: To select items in the table at the bottom, click anywhere in the item.
When the line is selected, the fields automatically load the parameters for the
item for you to edit.
Type: Select the protocol (TCP or UDP) you want to use for the virtual server.
Private Port: Type the port number of the computer on the LAN that is being
used to act as a virtual server.
Public Port: Type the port number on the WAN that will be used to provide
access to the virtual server.