Nat Address Mapping Edit; Table 94 Advanced > Nat > Address Mapping - ZyXEL Communications ZYWALL 2 PLUS User Manual

Chapter 17 Network Address Translation (NAT)
The following table describes the labels in this screen.
Table 94 ADVANCED > NAT > Address Mapping
LABEL
SUA Address
Mapping
Rules
Full Feature
Address
Mapping
Rules
#
Local Start IP
Local End IP
Global Start IP This refers to the Inside Global IP Address (IGA), that is the starting global IP
Global End IP
Type
Modify
Insert

17.4.2 NAT Address Mapping Edit

Click the Edit button to display the NAT Address Mapping Edit screen. Use this screen to
edit an address mapping rule. See
address mapping.
316
DESCRIPTION
This read-only table displays the default address mapping rules.
This is the rule index number.
This refers to the Inside Local Address (ILA), which is the starting local IP address. If
the rule is for all local IP addresses, then this field displays 0.0.0.0 as the Local Start
IP address. Local IP addresses are N/A for Server port mapping.
This is the end Inside Local Address (ILA). If the rule is for all local IP addresses, then
this field displays 255.255.255.255 as the Local End IP address. This field is N/A for
One-to-One and Server mapping types.
address. 0.0.0.0 is for a dynamic IP address from your ISP with Many-to-One and
Server mapping types.
This is the ending Inside Global Address (IGA). This field is N/A for One-to-One,
Many-to-One and Server mapping types.
1. One-to-One mode maps one local IP address to one global IP address. Note that
port numbers do not change for the One-to-One NAT mapping type.
2. Many-to-One mode maps multiple local IP addresses to one global IP address.
This is equivalent to SUA (i.e., PAT, port address translation), ZyXEL's Single User
Account feature that previous ZyXEL routers supported only.
3. Many-to-Many Overload mode maps multiple local IP addresses to shared global
IP addresses.
4. Many One-to-One mode maps each local IP address to unique global IP
addresses.
5. Server allows you to specify inside servers of different services behind the NAT to
be accessible to the outside world.
Click the edit icon to go to the screen where you can edit the address mapping rule.
Click the delete icon to delete an existing address mapping rule. A window display
asking you to confirm that you want to delete the address mapping rule. Note that
subsequent address mapping rules move up by one when you take this action.
Click Insert to insert a new mapping rule before an existing one.
Section 17.1 on page 309 for information on NAT and
ZyWALL 2 Plus User's Guide