Ericsson W3X - Manual (Page 55)

Configuration and Management
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3.7.3 Port Forwarding
Port forwarding is used to allow an external user to access a service
residing on a server connected to the LAN (to cross the NAT border). It
enables access to servers on the LAN from the Internet (e.g. Web server)
and also enables applications to work from the LAN (e.g. games, voice and
chat) to the Internet.
Note: Port forwarding requires that the Ericsson W3x has a public IP
address for Port Forwarding requests from the Internet to be
handled correctly.
This IP address is displayed on the Overview page as the
“Internet: IP address”. A private IP address usually begins with 10,
172
, or 192. In this case, no incoming access from the Internet is
allowed. For more information on public and private IP addresses,
contact your service provider.
When a computer on the Internet sends data to the public IP address of the
Ericsson W3x, it needs to know what to do with the data. A port forwarding
rule tells the Ericsson W3x which computer on the local area network to
send the data to.
The “PORT FORWARDING” section on the NAT page includes the
following information about port forwarding rules:
Table 18 - Port Forwarding description
Text Description
NAT Port The NAT port number that the data traffic is allowed
to be transported on.
Server IP The IP address of the destination server on the LAN.
Server Port The port number on the destination server which
identifies the type of service that is directed, for
example web service on port 8080.
Protocol The protocol to be used for the service; TCP or
UDP.
Delete Click on the button to delete the port forwarding rule.
Edit Click on the button to edit the port forwarding rule.
3.7.3.1 Add a Port Forwarding Rule
To add a new port forwarding rule, click the Add Instance button. The Add
Port forwarding Instance page is displayed: