ZyXEL Communications Broadband Security Gateway P-312 User Manual

Page 81

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P312 Broadband Security Gateway

6-8

NAT

Table 6-4

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.

1

Local Start IP

Local End IP

Local Start IP is the starting local IP address (ILA)
(see

Figure 6-1

). 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 6-2

). Type Server allows us to specify

multiple servers of different types behind NAT to
this machine. See section 6.4.3 below for some
examples.

Server

Note: For all Local and Global IPs, the End IP address must begin after the IP Start

address.

Now let’s look at Option 1 in Menu 15.1. Enter 1 to bring up this menu. We’ll just look at the differences
from the previous menu. Note that, this screen is not read only, so we have 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.

Please note that if the Set Name field is left blank, the entire set will be deleted.

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