ZyXEL Communications Internet Security Appliance ZyWALL5UTM 4.0 User Manual
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ZyWALL 5/35/70 Series User’s Guide
Chapter 42 Network Address Translation (NAT)
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Note: You must press [ENTER] at the bottom of the screen to save the whole set.
You must do this again if you make any changes to the set – including deleting
a rule. No changes to the set take place until this action is taken.
Selecting Edit in the Action field and then selecting a rule brings up the following menu,
Menu 15.1.1.1
- Address Mapping Rule in which you can edit an individual rule and
configure the Type, Local and Global Start/End IPs.
Note: An IP End address must be numerically greater than its corresponding IP Start
address.
Figure 319 Menu 15.1.1.1: Editing/Configuring an Individual Rule in a Set
Menu 15.1.1.1 Address Mapping Rule
Type= One-to-One
Local IP:
Start=
End = N/A
Global IP:
Start=
End = N/A
Server Mapping Set= N/A
Press ENTER to Confirm or ESC to Cancel:
The following table describes the fields in this menu.
Table 217 Menu 15.1.1.1: Editing/Configuring an Individual Rule in a Set
FIELD
DESCRIPTION
Type
Press [SPACE BAR] and then [ENTER] to select from a total of five types. These are the
. Server allows you to specify multiple
servers of different types behind NAT to this computer. See
for
an example.
Local IP
Only local IP fields are N/A for server; Global IP fields MUST be set for Server.
Start
Enter the starting local IP address (ILA).
End
Enter 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 and Server
types.
Global IP
Start
Enter the starting global IP address (IGA). If you have a dynamic IP, enter 0.0.0.0 as the
Global IP Start. Note that Global IP Start can be set to 0.0.0.0 only if the types are Many-
to-One or Server.
End
Enter the ending global IP address (IGA). This field is N/A for One-to-One, Many-to-One
and Server types.