NetComm NB1 - Manual (Page 49)

YML780 Rev1 NB1 User Guide
www.netcomm.com.au 49
Advanced Port Forwarding: Creating Custom Rules
Click the Custom Port Forwarding link to setup a custom rule.
If there is no pre-defined Port Forwarding Rule for a particular application, a User
Rule can be created which defines the required Port(s), Protocol(s) and Internal Port
forwarding rules.
To create a custom rule you will need to know the specific port number(s) and port
type [UDP or TCP] that the application requires. These will be the outside port num-
bers. Some appli cations 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 Destination Port Map field specifies the internal port that the data will be
directed to on the LAN Client. When dealing with port ranges, the Internal Port (des-
ignated by the Port Map field) will be the same as the first port in the range. When
you simply want to forward a single port from outside (i.e. WAN side) to inside (i.e.
LAN side), then all three fields (Port Start, Port End and Port Map) will have the
same port number.
Option Description
Connection: Choose the connection to which the rule
is to be applied to.
Application: Provide a name for the application (e.g.
Azureus). The name must be unique,
must not contain spaces and cannot
begin with a number.
Protocol: Can be either TCP or UDP, or both.