16 SBG1000 User Guide
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Configuration: Basic Gateway TCP/IP Wireless Print Server USB
Security
The Motorola SURFboard Wireless Cable Modem Gateway provides:
•A firewall to protect the SBG1000 LAN from undesired attacks over the Internet
•Security measures to prevent eavesd ropping of wireless data
Network Address Translation (NAT) provides some security because the IP addresses of SBG1000 LAN
computers are not visible on the Internet.
The logical network diagram does not necessarily correspond to the network cabling. A full discussion of network
security is beyond the scope of this document.

SBG1000 security measures shown in a logical network diagram

Caution!
If you are using a wired LAN only and have no wireless clients (stations), be sure you disable the
wireless interface by turning off Enable Wireless Interface on the Wireless > NETWORK Page.
SBG1000
Firewall
ComputerComputer
Wired Ethernet and/or HPNALAN Wireless LAN
LaptopComputer PDA
Wireless Security:
WEP shared key encryption
MAC access control list
Disable ESSID Broadcast
Internet
DMZ computer