Using Network Address Translation - Netopia R2121 User Reference Manual

Using Network Address Translation

The following procedure describes how to use Network Address Translation.
1. Pick a network number for your local network (referred to as the internal network). This can be any IP
address range you want. The Netopia R2121 Dual Analog Router has a default IP address of 192.168.1.1.
You may choose to change this address to match a pre-existing addressing scheme. For this example, we
will use 10.0.0.0.
Note: The outside world (the external network) will not see this network number.
2. Using the internal network number, assign addresses to the local nodes on your LAN. For example, you
may assign
10.0.0.1 to your Netopia R2121
10.0.0.2 to a node running as a World Wide Web server
10.0.0.3 to an FTP server
10.0.0.4 to a Windows NT PC
10.0.0.5 to a Windows 95 PC
Note: See "Associating port numbers to nodes" on page
3. You created a Connection Profile for your ISP when you ran the SmartStart application. In the Connection
Profile, you can toggle Address Translation Enabled to Yes or No (Yes to enable NAT) and press Return.
The Easy Setup Connection Profile is accessible either:
from the Easy Setup menu in the Main Menu screen, go to the Next Screen Connection Profile 1: Easy
Setup Profile
Number to Dial:
Address Translation Enabled:
Local WAN IP Address:
Remote IP Address:
Remote IP Mask:
PPP Authentication...
Send User Name:
Send Password:
PREVIOUS SCREEN
Enter the directory number for the remote network connection.
Enter basic information about your WAN connection with this screen.
or, from the WAN Configuration menu in the Main Menu screen. Go to the Display/Change Connection
IP Setup, SmartIP and Network Address Translation 10-3
Connection Profile 1: Easy Setup Profile
10-5.
12345678901234567890
Yes
0.0.0.0
127.0.0.2
255.0.0.0
PAP
NEXT SCREEN