Netopia 2e-w User Guide

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Cayman 2E-W User’s Guide
How Your Cayman 2E-W Works
November 2000
C-1
 C
How Your Cayman 2E-W 
Works
 About Network Address Translation
 About Bridging
 About DHCP
 About PPP
 About PPPoE
 About Wireless Networking
About Network 
Address 
Translation
Network address translation (NAT) lets a Cayman 2E-W conceal the 
topology of an Ethernet network connected to its LAN interface 
from routers on networks connected to its WAN interface.
 When NAT is enabled, the Cayman 2E-W “proxies” for computers on 
your network by pretending to be the originating host for network 
communications from non-originating networks. The Cayman 2E-W 
tracks which local hosts are communicating with which remote 
hosts, and routes packets received from remote networks to the 
correct computer on the LAN (Ethernet A) interface. Sites