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Prestige 2802HW(L)-Ix Support Notes
All contents copyright (c) 2007 ZyXEL Communications Corporation.
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The following table describes the fields in this screen.
Field Description Option/Example
Type
Press [CHOOSE BAR] to toggle through a total of 5 types.
These are the mapping types discussed above plus a server type.
Some examples follow to clarify these a little more.
One-to-One
Many-to-One
Many-to-Many Overload
Many-to-Many No
Overload
Server
Start This is the starting local IP address (ILA) 0.0.0.0
Local
IP
End
This is the ending local IP address (ILA). If the rule is for all
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.
255.255.255.255
Start
This is the starting global IP address (IGA). If you have a
dynamic IP, enter 0.0.0.0 as the Global Start IP.
0.0.0.0
Global
IP
End
This is the ending global IP address (IGA). This field is N/A for
One-to-One, Many-to-One and Server types.
200.1.1.64
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 port 21
(FTP) another at IP address 192.168.1.33.