ZyXEL Communications Prestige 1600 User Manual

Page 72

Prestige 1600 Universal Access Concentrator

9-6

NAT

Figure 9-6 SUA Address Mapping Rules

The following table explains the fields in this screen.

Please note that the fields in this menu are read-only. The Type, Local and Global Start/End IPs are

normally (not for this read-only menu) configured in Menu 15.1.1.1 (described later) and the values

are displayed here.

Table 9-3 SUA Address Mapping Rules

Field

Description

Options/Example

Set Name

This is the name of the set you selected in Menu
15.1 or enter the name of a new set you want to
create.

SUA

Idx

This is the index or rule number.

Local Start IP

Local End IP

Local Start IP is the starting local IP address (ILA)
(see Figure 9-1). Local End IP is the ending local IP
address (ILA). If the rule is for all local IPs, then the
Start IP is 0.0.0.0 and the End IP is 255.255.255.255.

0.0.0.0

255.255.255.255

Global Start
IP

This is the starting global IP address (IGA). If you
have a dynamic IP, enter 0.0.0.0 as the Global Start
IP.

0.0.0.0

Global End IP

This is the ending global IP address (IGA).

N/A

Type

These are the mapping types discussed above (see
Table 9-1). Type Server allows you to specify a
server of a given service behind NAT. See section
9.4.3 below for some examples.

Server

Note: For all Local and Global IPs, the End IP address must be numerically greater than the IP Start

address.

Now let’s look at Option 1 in Menu 15.1. Enter 1 to bring up this menu and look at the differences from the
previous menu. Note that, this screen is not read only, so there are extra Action and Select Rule fields. Note also
that the [?] in the Set Name field means that this is a required field and you must enter a name for the set.

Menu 15.1.255 - Address Mapping Rules

Set Name= SUA

Idx Local Start IP Local End IP Global Start IP Global End IP Type
--- --------------- --------------- --------------- --------------- ------
1. 0.0.0.0 255.255.255.255 0.0.0.0 M-1
2. 0.0.0.0 Server
3.
4.
5.
6.
7.
8.
9.
10.

Press ENTER to Confirm or ESC to Cancel: