ZyXEL Communications P-334WT Support Notes page 72

IP
This is the ending local IP address (ILA). If the rule is for all
End local IPs, then put the Start IP as 0.0.0.0 and the End IP as
255.255.255.255. This field is N/A for One-to-One type.
This is the starting global IP address (IGA). If you have a
Start
dynamic IP, enter 0.0.0.0 as the Global Start IP.
Global
IP
This is the ending global IP address (IGA). This field is N/A
End
for One-to-One, Many-to-One and Server types.
Note: For all Local and Global IPs, the End IP address must begin after the IP Start address, i.e., you
cannot have an End IP address beginning before the Start IP address.
NAT Server Sets
The NAT Server Set is a list of LAN side servers mapped to external ports (similar to the old SUA menu
of before). If you wish, you can make inside servers for different services, e.g., Web or FTP, visible to
the outside users, even though NAT makes your network appears as a single machine to the outside
world. A server is identified by the port number, e.g., Web service is on port 80 and FTP on port 21.
As an example (see the following figure), if you have a Web server at 192.168.1.36 and a FTP server at
192.168.1.33, then you need to specify for port 80 (Web) the server at IP address 192.168.1.36 and for
Please note that a server can support more than one service, e.g., a server can provide both FTP and Mail
service, while another provides only Web service.
port 21 (FTP) another at IP address 192.168.1.33.
255.255.255.255
0.0.0.0
172.16.23.55