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Port Forwarding
: if the PC’s behind the MTA are to provide services
such as a web server, ftp server and so forth to other computers on the
Internet, you may designate the specific ports to forward to specific
addresses. In simple terms, the MTA provides a barrier against internet
attacks for the internal network; forwarding exposes individual services on
individual PC’s that you select so that they can be seen from the Internet.
The example below allows for an encrypted command shell service, to be
forwarded to an individual machine on the internal network. Do not change
these settings unless you have a clear understanding of the security issues.
Each service/host added is kept in a table. Use the “Port Forwarding” link
on the main page and the Add and Save buttons to manage the individual
service/host pair.
Service Name
The name of service being added.
IP Address(PC)
The target IP address of your PC that should have packets
routed towards it.
Protocol
Specify the protocol, TCP or UDP.
Well-Known Port
If you want to redirect packets having a well-known port,
please select one among the list of well-known ports. This is
simply a shortcut to save you the trouble of looking up the
port number.
Port Number
Type the number of port for the static routing if you haven’t
chosen it from the “Well-Known” port list.
Port Triggering
: is a method of dynamically forwarding ports to a specific
PC on the LAN that requests them at a particular time; such as connecting