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Figure 58 address mapping, Table 45 address mapping – ZyXEL Communications G-2000 Plus User Manual

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ZyAIR G-2000 Plus User’s Guide

Chapter 10 Single User Account (SUA) / Network Address Translation (NAT)

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Figure 58 Address Mapping

The following table describes the labels in this screen.

Table 45 Address Mapping

LABEL

DESCRIPTION

Local Start IP

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.

Local End IP

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.

Global Start IP

This refers to the Inside Global IP Address (IGA). 0.0.0.0 is for a dynamic IP address

from your ISP with Many-to-One and Server mapping types.

Global End IP

This is the end Inside Global Address (IGA).
This field is N/A for One-to-One, Many-to-One and Server mapping types.

Type

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.