In either case you still need to provide a username and password to connect to DSL.
Precautions and Options
Once your connection is up and running, you??™re on the Internet and all set to go. Well,
one computer is set to go and, depending on your choice of protection software, you
may be able to enjoy the whole Internet. You may eventually consider further options,
such as sharing your connection with more than one computer, configuring a wireless
connection, and adding better protection, all of which are covered in later projects.
As you can see, the basic modem provided with most DSL service options provides
only one Ethernet connection. The modem and service itself provides only one
IP address; this and the single Ethernet connection provide service to only one client
device??”typically your computer. The basic modem also provides no built-in firewall
protection or routing options, which are useful or necessary for a variety of virtual
private network (VPN, for a remote office), Voice-over-IP (VoIP), and other enhanced
Internet use connections.
As for protection, when you enter the world of broadband Internet access, your
PC truly becomes a small but quite vulnerable part of the entire Internet. Without
virus protection and at least Windows XP??™s firewall, your PC is a sitting duck for
viruses, spyware, and a variety of exploits that will leave your PC helpless and at the
mercy of persons unknown from around the world.
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