P-2302R Series VoIP Station Gateway User's Guide

Table Of Contents
P-2302R Series User’s Guide
137 Chapter 12 Network Address Translation (NAT) Screens
12.5.1 Configuring Address Mapping
To edit an address mapping rule, select the radio button of a rule and click the Edit button to
display the screen shown next.
Figure 51 Address Mapping Edit
The following table describes the labels in this screen.
Edit Click Edit to go to the Address Mapping Rule screen.
Delete Click Delete to delete an address mapping rule.
Table 36 Address Mapping
LABEL DESCRIPTION
Table 37 Address Mapping Edit
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.
Many to One: 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 (the SUA Only option).
Many-to-Many Overload: Many-to-Many Overload mode maps the multiple local
IP addresses to shared global IP addresses.
Many One-to-One: Many-One-to-One mode maps each local IP address to a
unique 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 Inside Local IP Address (ILA). Local IP addresses are N/A for
Server port mapping.