Linksys WRVS4400N - Manual (Page 63)

55 Chapter 6: Setting Up and Configuring the Router
Firewall Tab
Wireless-N Gigabit Security Router with VPN
Port Range Forwarding
This is one of the NAPT (Network Address Port Translation) features. The Port Range Forwarding screen allows
you to set up public services on your network, such as web servers, ftp servers, e-mail servers, or other
specialized Internet applications that use one or multiple port numbers (e.g. video conference). The port numbers
being used will not change while forwarding to the local network. This allows users on the Internet to access this
server by using the WAN port IP address and the pre-defined port numbers. When users send these types of
requests to your WAN port IP address via the Internet, the NAT Router will forward those requests to the
appropriate servers on your LAN.
Application. Enter the name of the application you wish to configure.
Start. This is the beginning of the port range. Enter the beginning of the range of port numbers (external ports)
used by the server or Internet application. Check with the software documentation of the Internet application for
more information if necessary.
End. This is the end of the port range. Enter the end of the range of port numbers (external ports) used by the
server or Internet application. Check with the software documentation of the Internet application for more
information if necessary.
Protocol. Select the protocol(s) used for this application, TCP and/or UDP.
IP Address. For each application, enter the IP address of the PC running the specific application.
Enabled. Select Enabled to enable port range forwarding for the relevant application.
Change these settings as described here and click Save Settings to apply your changes, or click Cancel
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click
More for additional details.
Figure 6-38: Port Range Forwarding