Motorola Netopia 2200 Series User Manual page 19

Security
The Motorola Netopia® Gateway tracks which local hosts are communicating with which
remote hosts. It routes packets received from remote networks to the correct computer
on the LAN (Ethernet) interface.
• When NAT is OFF, a Motorola Netopia® Gateway acts as a traditional TCP/IP router, all
LAN computers/devices are exposed to the Internet.
A diagram of a typical NAT-enabled LAN follows:
WAN
Internet
Ethernet
Interface
Embedded Admin Services:
HTTP-Web Server and Telnet Server Port
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NOTE:
1. The default setting for NAT is ON.
2. Motorola uses Port Address Translation (PAT) to implement the NAT facility.
3. NAT Pinhole traffic (discussed below) is always initiated from the WAN side.
Motorola Netopia® Gateway
NAT
LAN
Ethernet
Interface
NAT-protected
LAN stations
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