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Actiontec USB/Ethernet DSL Modem User Manual
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Appendix c
Computer Security
Electronic Security
Here are two methods to secure your computer electronically.
Network Address Translation
If a local area network and a
PPP
connection to the
ISP
using dynamic
IP
addresses
through a
DHCP
server are being used, Network Address Translation (
NAT
) is
being used.
NAT
provides a very basic level of security.
Firewalls
The safest way to prevent attacks on the computer is through a firewall – a hard-
ware device or software program that protects the computer from unauthorized
access by controlling who can access your computer and by monitoring the trans-
missions between the computer and the Internet
Windows
XP
has a built-in firewall. For more information, select
Help and
Support Center
from the Help menu. Search for
Internet Connection Firewall
.
If Windows
98 SE
, Me,
NT 4.0
, or
2000
is running on the computer, consider install-
ing a firewall. Hardware and software firewall products are changing rapidly as
more homes and businesses establish high-speed digital connections between their
local area networks and the Internet.
Summary of Contents for GT701A
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