Netopia Router PN Series - Manual (Page 82)

4-2 Reference Guide
■ The single proxy address is acquired at connection time from
the answering side. The address can be assigned by the
remote router from either a dynamic pool of addresses or a
fixed, static address.
■ Static NAT (Network Address Translation) Security is made
simpler and more reliable by only having to firewall one IP
address and by obscuring the internal network structure from
the Internet.
Using NAT
Follow these steps to use NAT.
1. Pick a network number for your local (internal) network. This
can be any IP address range you want. 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 Router
■ 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 Macintosh computer
■ 10.0.0.5 to a Windows 95 PC
3. Create a connection profile for your ISP or other remote net-
work. See
“Adding a Connection Profile” on page 2-16 . In the IP
Profile Parameters screen, toggle Address Translation Enabled
to Yes, to turn on NAT for this profile.
4. When your Netopia Router calls the ISP, the remote router that
answers the call assigns your Netopia Router an IP address
that external users use to communicate with your network. To
view this address, go to the QuickView menu and check More
Info in the Current Status section of the profile.