Руководство Пользователя для Netopia 4741 2a4na

Multiple Network Address Translation 10-7

Define the public range of addresses that external computers should use to get to the NAT internal
machines. These are the addresses that someone on the Internet would see.

Create a List name that will act as a rule or ser ver holder.

Create a map or rule that specifies the internal range of NATed addresses and the external range they are
to be associated with.

Associate the Map or Server List to your WAN interface via a Connection Profile or the Default Profile.

The three NAT features all operate completely independently of each other, although they can be used
simultaneously on the same Connection Profile.

You can configure a simple 1-to-many PAT (often referred to simply as NAT) mapping using Easy Setup. More
complex setups require configuration using the Network Address Translation item on the IP Setup screen.

An example MultiNAT configuration at the end of this chapter describes some applications for these features.
See the

MultiNAT Configuration Example on page 10-29

In order to configure the router to make ser vers on your LAN visible to the Internet, you use advanced features
in the System Configuration screens, described in

IP setup

IP setup

To access the NAT configuration screens, from the Main Menu navigate to IP Setup:

Select Network Address Translation (NAT) and press Return.

Main

System

Configuration

Setup

IP Setup

Ethernet IP Address: 192.168.1.1
Ethernet Subnet Mask: 255.255.255.0
Define Additional Subnets...

Default IP Gateway: 127.0.0.2

Primary Domain Name Server: 0.0.0.0
Secondary Domain Name Server: 0.0.0.0
Domain Name: isp.com

Receive RIP... Both
Transmit RIP... Off

Static Routes... IP Address Serving...
Network Address Translation (NAT)...

Set up the basic IP attributes of your Netopia in this screen.