Table of Contents
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The Netopia 4753 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
serve IP addresses to hosts on your local network.
Netopia's IP routing features Network Address Translation, Virtual Private Networking (VPNs), and IP address
serving.
This section covers the following topics:
"IP Setup" on page 10-2
"IP Address Serving" on page 10-10
"More Address Serving Options" on page 10-17
"DHCP Relay Agent" on page 10-23
"Connection Profiles" on page 10-25
Network Address Translation allows communication between the LAN connected to the Netopia 4753 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 4753 from the outside world.
The setup is simpler, so ISPs typically offer Internet accounts supporting Network Address Translation at a
significant cost savings.
For a detailed discussion of Network Address Translation, see
Translation."
Chapter 11, "Multiple Network Address
IP Setup 10-1
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