Network Address Translation (Nat); Nat Scenarios; Network Address Translation; Nat With A Single Pc - Bay Networks NauticaRS Reference Manual

Network Address Translation (NAT)

NAT Scenarios

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Network Address Translation (NAT) is a method for translating
an internal IP address or network into a single globally unique IP
address.
There are several benefits for using NAT, internal address re-use;
use of unregistered addresses; the ability to hide internal network
addresses; not needing to re-address the internal network when
connecting to the internet or a corporate network.
The most important benefit of NAT for Nautica routers is the
ability for the router to be assigned an IP address by a service
provider, without needing to reconfigure the network behind the
router.
For information on how to configure NAT on a Nautica router,
refer to Chapter 15.
There are three scenarios in which NAT can be used on a Nautica
router.
• A single PC connected to a Nautica router which connects
to an internet provider.
Figure 1-6.
In this scenario (Figure
Nautica router with an IP address, but not the PC. The Nautica
router translates between the PC's IP address and the IP address
supplied by the remote router.
Introduction to Protocols and Routing

NAT with a Single PC

1-6), the remote router provides the
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