OPEN 812L VoIP ATA Router
User Guide
Page 52
OPEN Networks Pty Ltd
www.opennw.com
The following table describes the settings for
Port Forwarding Configuration
and their
definitions:
Field Name
Description
ID
This is the ID number corresponding to the Virtual Server
configuration.
Public Port – Start
This field allows you to enter the port number of the Public
Network (WAN or external network). If you are entering a
range of ports, this is the first port.
Public Port – End
This field represents the last port number in a port range. If
you only want one port number (no port range), simply
enter the same number here as in the Public Port – Start
field. The maximum number of the mapped Port is 20.
Private Port
This field allows you to enter the port number of the
Private Network (LAN or internal network). In most cases,
the private port number is same as public port number.
This port number cannot be seen from the WAN side.
Host IP Address
This field allows you to enter the private network IP
address for the particular server.
You may enter a maximum number of 20 Port Forwarding configurations and a maximum
number of 20 mapped ports.
Using port forwarding does have security implications, as outside users will be able to
connect to computers on your network. For this reason you are advised to use specific
Virtual Server entries just for the ports your application requires, instead of using DMZ. As a
result all connections from the WAN will attempt to access the public IP of the DMZ computer
specified.
