Etec PT-8505G, User Manual, Page: 76 / 253

4 Ports 11g Wireless ADSL2/2+ Router 69
4.4.6.4 Port Forwarding – Custom Port Forwarding
Custom Port Forwarding
: If there is no pre-defined Port Forwarding Rule for a particular application, a
user rule can be created which defines the required Ports, Protocols and Port forwarding rules. Click the
Custom Port Forwarding button and the following screen will pop-up.
The Custom Port Forwarding screen allows you to create up to 15 custom ports forwarding entries to
support specific services or applications; such as Concurrent NAT/NAPT operation.
To create a custom rule you will need to know the specific port number and port type that the application
requires. Some applications specify a range of ports in which case you will need to know both the starting and
ending port numbers in the range, which are mapped by the start port and end port fields.
The Port Map specifies the internal port that the data will be directed to on the LAN Client. When dealing
with port ranges, the Internal Port will be the same as the first port in the range. When you simply want to
forward a single port from outside to inside, then all three fields (Port Start, Port End and Port Map) will have
the same port number.
Connection:
Select the WAN connection on which the Custom Port Forwarding rule is to be
applied.
Enable:
The Enable button is checked by default, meaning this rule is applied when you click on
the Apply button.
Application:
Name of the application for which your ports will be opened.
Protocol:
There are three options available: TCP, UDP, and TCP and UDP.