Linksys BEFSX41 - Manual (Page 17)

Chapter 2
Advanced Configuration
14 Broadband Firewall Router with 4-Port Switch/VPN Endpoint
Click Save Settings to apply your changes, or click Cancel
Changes to cancel your changes.
Applications & Gaming > Port Triggering
The Port Triggering screen allows the Router to watch
outgoing data for specific port numbers. The IP address of
the computer that sends the matching data is remembered
by the Router, so that when the requested data returns
through the Router, the data is pulled back to the proper
computer by way of IP address and port mapping rules.
Applications and Gaming > Port Triggering
Port Triggering
Application Enter the application name of the trigger.
Triggered Range
Start Port and End Port For each application, enter
the starting and ending port numbers of the triggered
port number range. Check with the Internet application
documentation for the port number(s) needed.
Forwarded Range
Start Port and End Port For each application, enter
the starting and ending port numbers of the forwarded
port number range. Check with the Internet application
documentation for the port number(s) needed.
Click Save Settings to apply your changes, or click Cancel
Changes to cancel your changes.
Applications & Gaming > UPnP Forwarding
The UPnP Forwarding screen displays preset application
settings as well as options to customize port services for
other applications.
Applications and Gaming > UPnP Forwarding
UPnP Forwarding
Application
Ten applications are preset. For custom applications,
enter the name of your application in one of the available
fields.
The preset applications are among the most widely used
Internet applications. They include the following:
FTP (File Transfer Protocol) A protocol used to transfer
files over a TCP/IP network (Internet, UNIX, etc.). For
example, after developing the HTML pages for a website
on a local machine, they are typically uploaded to the web
server using FTP.
Telnet A terminal emulation protocol commonly used on
Internet and TCP/IP-based networks. It allows a user at a
terminal or computer to log onto a remote device and run
a program.
SMTP (Simple Mail Transfer Protocol) The standard e-
mail protocol on the Internet. It is a TCP/IP protocol that
defines the message format and the message transfer
agent (MTA), which stores and forwards the mail.
DNS (Domain Name System) The way that Internet
domain names are located and translated into IP addresses.
A domain name is a meaningful and easy-to-remember
“handle” for an Internet address.
TFTP (Trivial File Transfer Protocol) A version of the
TCP/IP FTP protocol that has no directory or password
capability.
Finger A UNIX command used on the Internet to find out
information about a particular user, such as a telephone
number, whether the user is currently logged on, and
the last time the user was logged on. The person being