Справочник Пользователя для Netopia 4752 2a4na

The Netopia 4752 uses Internet Protocol (IP) to communicate both locally and with remote networks. This 
chapter shows you how to configure the router to route IP traffic. You also learn how to configure the router to 
ser ve IP addresses to hosts on your local network.

Netopia’s IP routing features Network Address Translation, Vir tual Private Networking (VPNs), and IP address 
ser ving.

This section covers the following topics:

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Network Address Translation allows communication between the LAN connected to the Netopia 4752 and the 
Internet using a single (or a few) IP address(es) instead of a routed account with separate IP addresses for 
each computer on the network.

Network Address Translation also provides increased security by hiding the local IP addresses of the LAN 
connected to the Netopia 4752 from the outside world.

The setup is simpler, so ISPs typically offer Internet accounts suppor ting Network Address Translation at a 
significant cost savings.

For a detailed discussion of Network Address Translation, see