ZyXEL Communications P-2900-4HB - Manual (Page 62)

Chapter 6 Network Address Translation (NAT) Screens
P-2900-4HB User’s Guide
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6.2.2 Editing an Address Mapping Rule
Use this screen to edit an address mapping rule. Click the rule’s link in the NAT
Address Mapping Rules screen to display the screen shown next.
Figure 19 Edit Address Mapping Rule
The following table describes the fields in this screen.
Table 12 Edit Address Mapping Rule
LABEL DESCRIPTION
Type Choose the port mapping type from one of the following.
• One-to-One: One-to-One mode maps one local IP address to one
global IP address. Note that port numbers do not change for One-to-
one NAT mapping type.
• Many-to-One: Many-to-One mode maps multiple local IP addresses
to one global IP address.
• Server: This type allows you to specify inside servers of different
services behind the NAT to be accessible to the outside world.
Local Start IP This is the starting local IP address (ILA). Local IP addresses are N/A for
Server port mapping.
Local End IP This is the end local IP address (ILA). If your rule is for all local IP
addresses, then enter 0.0.0.0 as the Local Start IP address and
255.255.255.255 as the Local End IP address.
This field is N/A for One-to-One and Server mapping types.
Global Start
IP This is the starting global IP address (IGA). Enter 0.0.0.0 here if you have
a dynamic IP address from your ISP.
Global End IP This is the ending global IP address (IGA). This field is N/A for One-to-
One, Many-to-One and Server mapping types.
Server
Mapping Set Only available when Type is set to Server.
Select a number from the drop-down menu to choose a server set from
the NAT - Address Mapping Rules screen.
Edit Details Click this link to go to the NAT - Edit NAT Server Set screen to edit a
server set that you have selected in the Server Mapping Set field.