ZyWALL 5/35/70 Series User’s Guide

 

Table 127 NAT Address Mapping (continued)

 

 

 

 

LABEL

DESCRIPTION

 

 

 

 

Global Start IP

This refers to the Inside Global IP Address (IGA), that is the starting global IP address.

 

 

0.0.0.0 is for a dynamic IP address from your ISP with Many-to-Oneand Server

 

 

mapping types.

 

Global End IP

This is the ending Inside Global Address (IGA). This field is N/A for One-to-One,

 

 

Many-to-One and Server mapping types.

 

Type

1. One-to-Onemode 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-Onemode 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-Onemode 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.

 

Modify

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.

 

Insert

Click Insert to insert a new mapping rule before an existing one.

 

 

 

22.4.1 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.

Figure 182 NAT Address Mapping Edit

Chapter 22 Network Address Translation (NAT)

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