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34 Advanced Menu
There are 11 configurable rules and one “Default Rule.” When the modem receives an
unsolicited packet from the Internet, it will first look at rules 1-11 to see if the traffic’s
port matches a rule. If not, the modem will see if a Default Server is present, and if so,
pass the packet to the Default Server. If no Default Server exists, the traffic is dropped.
The modem can use one port or a port range for forwarding traffic, depending on
which port(s) the application being forwarded uses. If only one port is needed, the Start
and End ports should be set to the same value.
Port forwarding entries can be edited by clicking on the
Edit ( ) icon in the Action
column. You can also use the
Delete ( ) icon to remove a port forwarding rule.
In the screenshot below, a user has Windows Remote Desktop set up on his computer,
which is assigned IP address 192.168.100.33. Rule 1 is Edited (opening the Edit menu
for the rule) and set to Active. A Service Name is given to it for reference. The Start
and End Ports specified at port 3389, the default communication port for Remote
Desktop. Finally, the Server IP Address of the computer is specified. Now, the user can
access their Remote Desktop from the Internet, so long as they know the WAN
(public) IP or DNS address that the modem is using.